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#1
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Hot Water Recirculating Pump
Hi All,
A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T |
#2
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Hot Water Recirculating Pump
On 12/27/2016 3:44 PM, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T I am not so lazy as that, but I put a timer switch in the kitchen (close to the water heater) so when I want to take a shower, I crank it for 5 or 10 minutes, then it shuts off. They make some things that are flow sensors which turn on the pump, but that would not work unless you are smart enough to just turn it on to flow/start pump, then turn it off because you know what is happening with the pump. The rest of your household will not get it. So, you could put a switch at each of six locations, but that seems silly to me. |
#3
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Hot Water Recirculating Pump
On Tue, 27 Dec 2016 23:44:45 -0000, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Stop wasting money on hot water, what's it for? -- Father walks into his son's room and starts talking. "Son, masturbating will cause you to go blind." "But dad, I'm over here!" |
#4
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Hot Water Recirculating Pump
On 12/27/2016 03:44 PM, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T The rest of his letter: We have a hot water circulation system installed at our home, but I turned it off as it ran 24 hours a day. Not very efficient for sure. |
#5
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Hot Water Recirculating Pump
"T" wrote in message news Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Number one You should consider cost. Cost for installation and cost heating water because running all the time heat loses through a pipes, will need to be made up at all time. Unless you go into sophistication with regulators, high temperature pump and pressure switches Tst. ETC. And Perhaps high temperature Silicon impregnated foam Insulation. You are asking for very expansive setup. |
#6
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Hot Water Recirculating Pump
On 12/27/2016 04:24 PM, Tony944 wrote:
"T" wrote in message news Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Number one You should consider cost. Cost for installation and cost heating water because running all the time heat loses through a pipes, will need to be made up at all time. Unless you go into sophistication with regulators, high temperature pump and pressure switches Tst. ETC. And Perhaps high temperature Silicon impregnated foam Insulation. You are asking for very expansive setup. That was my thought too. Thank you for the confirmation. |
#7
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Hot Water Recirculating Pump
On Tue, 27 Dec 2016 15:44:45 -0800, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T This idea was popular years ago when energy was cheap and they did not even use a pump. It will thermal siphon if you have a multi story home with the water heater in the basement. You just plumb an extra pipe from the hot water in the upstairs bathroom back down to the bottom of the water heater. It can be a little 3/8" copper tube. My dad did it at our house in the 50s. |
#8
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Hot Water Recirculating Pump
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#9
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Hot Water Recirculating Pump
On Tue, 27 Dec 2016 15:58:01 -0800, Taxed and Spent
wrote: On 12/27/2016 3:44 PM, T wrote: Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T I am not so lazy as that, but I put a timer switch in the kitchen (close to the water heater) so when I want to take a shower, I crank it for 5 or 10 minutes, then it shuts off. They make some things that are flow sensors which turn on the pump, but that would not work unless you are smart enough to just turn it on to flow/start pump, then turn it off because you know what is happening with the pump. The rest of your household will not get it. So, you could put a switch at each of six locations, but that seems silly to me. normally open pusgbutton switches wired in parallel to control a low voltage relay to run the pump - and possibly a solenoild valve to prevent backflow with the pump shut off. |
#10
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Hot Water Recirculating Pump
Needed: A unit that would allow remote manual operation of a
standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Our water heater is about 40 feet from our master bath. Without a pump it takes about two minutes for hot water to reach the shower. That's a lot of water going down the drain just waiting for hot water. So, I installed a simple hot water recirculating system in our house. The pump is located at the hot water heater, and I have a small 1/2" line that returns back from the furthest shower. With the pump running we get hot water in less than 5 seconds. Our pump is on a timer and only runs a few hours in the morning, and a few hours in the evening, during the times we are most likely to need hot water. Our pipes are located below the floor, but above the insulation. So any heat loss just helps heat the house. We are all electric (heat, hot water, lighting, etc.) and I have not noticed any significant increase in our power usage compared to before we installed the recirculating pump. You could certainly install manual switches in each room instead of using a timer. However, if the pump is still back at the water heater, you'll still have to wait for the water to reach the faucet whether it's pushed by the pump or standard water pressure. The point of the recirculating pump is hot water is already at the fixture ready to go. If the pipes are accessible, you could reduce heat loss by installing foam pipe insulation. You might be able to relocate the water heater so it is closer to the rooms that use hot water the most (typically bathrooms). Or, you could install a second water heater to serve rooms on the other side of the house. You could also install small point of use water heaters. This could give you 5 gallons or so of hot water for things like washing hands, or rinsing plates. If you need more hot water than that, you would have to wait for the hot water to reach the fixture from the main water heater. Of course, you would need to run new wiring and plumbing if you add or relocate water heaters. Anthony Watson www.watsondiy.com www.mountainsoftware.com |
#11
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Hot Water Recirculating Pump
Running a home hot water circulator continuously is stupid/expensive. Putting pushbuttons at each bathroom/kitchen doesn't have to be, but it isn't going to solve the delay problem, just reduce the waste of water which may or may not be a concern. It doesn't solve the delay problem becuase the typical recirculating pumps push about 1/2 the volume of water that a tap draws, so they take twice as long to bring the hot water as running the faucet will. If you are trying to retrofit something and running wires is a concern, look at Zwave devices hooked up to a time delay relay. We have a timer set to run for 90 minutes first thing in the morning. That covers the usual shower range for the household. 60 minutes around 6PM to cover kitching rinsing around dinner time, and 60 minutes around 9PM to cover the dishwasher, evening bath use. Covers 80% of the usual need and live with the occasional unusual need by running the faucet. If you are building a new house, pay attention to the plumber and how he's running the loop for hot water. Ours decided to run through all the bedrooms and then to the kitchen last. Not the most optimal route as popup demand is usually in the kitchen. |
#12
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Hot Water Recirculating Pump
In alt.home.repair, on Tue, 27 Dec 2016 16:24:48 -0800, "Tony944"
wrote: "T" wrote in message news Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? I have a friend who bought a house that was built by an architect, and it has loads of bells and whistles, including this. I've thought a little about potential cost, and I thought about sending her this thread, but I'm not going to do that unless there is an easy solution. Not only that, but the pump was broken when she bought the house, and the home inspector didn't notice it. So she ended up spending hundreds of dollars for a new pump. Or that the generator didn't start automatically, iirc. Many thanks, -T Number one You should consider cost. Cost for installation and cost heating water because running all the time heat loses through a pipes, will need to Well, in the winter it's like having electric heat, which is probably more expensive than the main heat, but at the second half of spring and the first half of fall, the waste heat is a total waste, and when it's hot enough for AC it increases the AC bill. In fact, it gets hot enough for AC earlier because of the heat from the constantly reheated water pipes. Would it help and be worth it to use plastic pipes? be made up at all time. Unless you go into sophistication with regulators, high temperature pump and pressure switches Tst. ETC. And Perhaps high temperature Silicon impregnated foam Insulation. You are asking for very expansive setup. And expensive too. After living in a ranch house and having cold water at the far end of the house**, the first thing I did when I got here is insulate the hot water pipe to the 2nd floor bathroom, where it showed in the basement, about half the total length. It didn't make any difference because it still cooled off while I slept for 8 hours or went to work for 8 hours, or just went downstairs for 8 hours. I think water in plastic pipe would also cool off in 8 hours. **There the whole pipe was avaiable for insulation except that the crawl space was a big mud hole, sticky mud that stuck to my shoes. I went down there once the first year, and never again for the next 8. |
#13
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Hot Water Recirculating Pump
In alt.home.repair, on Tue, 27 Dec 2016 23:24:48 -0700, Arthur Conan
Doyle wrote: Running a home hot water circulator continuously is stupid/expensive. Putting pushbuttons at each bathroom/kitchen doesn't have to be, but it isn't going to solve the delay problem, just reduce the waste of water which may or may not be a concern. It doesn't solve the delay problem becuase the typical recirculating pumps push about 1/2 the volume of water that a tap draws, so they take twice as long to bring the hot water as running the faucet will. If you are trying to retrofit something and running wires is a concern, look at Zwave devices hooked up to a time delay relay. We have a timer set to run for 90 minutes first thing in the morning. That covers the usual shower range for the household. 60 minutes around 6PM to cover kitching rinsing around dinner time, and 60 minutes around 9PM to cover the dishwasher, evening bath use. Covers 80% of the usual need and live with the occasional unusual need by running the faucet. If you are building a new house, pay attention to the plumber and how he's running the loop for hot water. Ours decided to run through all the bedrooms and then to the kitchen last. Not the most optimal route as popup demand is usually in the kitchen. OTOH, your dishes don't scream when they get cold water splashed on them. |
#14
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Hot Water Recirculating Pump
On Tue, 27 Dec 2016 15:44:45 -0800, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? If the goal is to save energy and waste as little water as possible while at the same time having warm - hot water available quickly, then I would ensure the hot water pipes are as well insulated as possible and put a timer on the pump and try running it for 5 minutes every 30 - 60 minutes. That will keep warm water in the pipes but not run the pump continuously and save a tremendous amount of energy. The wasteful aspect of the above solution is you will be dumping the cool water from the pipes back into the hot water heater, reducing the temperature causing it to fire up. This should give your customer a good ROI with a reasonable compromise in function and not represent a huge project. If you want to give him exactly what he asked for there exist remote control AC outlets, install one for the pump and buy multiple remotes. I don't think this is a great solution as you will either need to put a run timer on the pump or the customer will need to remember to shut off the pump when he is finished, this would be a problem when washing dishes or clothes. It would also mean he will have to wait for the water to circulate and or waste the water that has been sitting in the pipes. |
#15
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Hot Water Recirculating Pump
On 12/27/2016 6:44 PM, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T I haven't done this yet but I am planning it. I have a community well for water and individual septic system. Running lots of water down the drain to get hot water is not especially good for the septic system. My plan is to use a water solenoid to dump water outside until it measures a warm temperature. By outside, I was going to dump it into one of the downspouts so it will follow the underground pipe to where it just trickles down the hillside. This would be triggered by a motion detector in the remote bathroom. As soon as the water reaches a warm temperature, probably 110 or so, it would close the solenoid. I might put in dual solenoids so if one gets 'stuck' the other will not just let the water keep running. And, also a 'sanity timer' which would only allow the solenoid open for a max of a few minutes. It's in my head but haven't done it yet. In my case, it's not wasting water as the water goes back to where is came from. Actually, it's the same as dumping it into the septic tank, except that it will be automated and will not put a load on the septic leach field. |
#16
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Hot Water Recirculating Pump
On 12/27/2016 6:44 PM, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Have an electrician (EEs aren't smart enough for this job) wire the recirculating pump to bathroom motion sensors. When you enter the bathroom, the motion sensor turns the pump on. By the time you squeeze out a brick or two and you're ready to wash the digested potato salad from under your finger nails, the water should be hot. |
#17
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Hot Water Recirculating Pump
On 12/28/2016 8:02 AM, Art Todesco wrote:
On 12/27/2016 6:44 PM, T wrote: Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T I haven't done this yet but I am planning it. I have a community well for water and individual septic system. Running lots of water down the drain to get hot water is not especially good for the septic system. My plan is to use a water solenoid to dump water outside until it measures a warm temperature. By outside, I was going to dump it into one of the downspouts so it will follow the underground pipe to where it just trickles down the hillside. This would be triggered by a motion detector in the remote bathroom. As soon as the water reaches a warm temperature, probably 110 or so, it would close the solenoid. I might put in dual solenoids so if one gets 'stuck' the other will not just let the water keep running. And, also a 'sanity timer' which would only allow the solenoid open for a max of a few minutes. It's in my head but haven't done it yet. In my case, it's not wasting water as the water goes back to where is came from. Actually, it's the same as dumping it into the septic tank, except that it will be automated and will not put a load on the septic leach field. It almost sounds as if the OP and you are looking for wet (and hot) version of a "perpetual motion machine" Why not just go with a Watts recirculating pump and install the bypass at EACH point of use rather than just the furthest point from the hot water heater? http://www.homedepot.com/p/Hot-Water-Recirculating-System-with-Built-In-Timer-500800/100426993 or http://tinyurl.com/jz6l92o The electrical draw is nominal, installation relatively easy for a homeowner with moderate skill set, and we waste no water. If you REALLY want to be anal about it and not have it run other than when you decide you want it running NOW, you can jerry-rig a wireless remote to the unit and put a transmitter, like a garage door opener, near each point of use. I installed one several years ago and it's worked just fine. We have ours on the built-in timer with a good-sized window of when we anticipate we're most likely to want hot water available at the tap immediately. |
#18
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Hot Water Recirculating Pump
On Wed, 28 Dec 2016 13:28:16 +0000, Stormin' Norman
wrote: On Tue, 27 Dec 2016 15:44:45 -0800, T wrote: Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? If the goal is to save energy and waste as little water as possible while at the same time having warm - hot water available quickly, then I would ensure the hot water pipes are as well insulated as possible and put a timer on the pump and try running it for 5 minutes every 30 - 60 minutes. That will keep warm water in the pipes but not run the pump continuously and save a tremendous amount of energy. The wasteful aspect of the above solution is you will be dumping the cool water from the pipes back into the hot water heater, reducing the temperature causing it to fire up. This should give your customer a good ROI with a reasonable compromise in function and not represent a huge project. If you want to give him exactly what he asked for there exist remote control AC outlets, install one for the pump and buy multiple remotes. I don't think this is a great solution as you will either need to put a run timer on the pump or the customer will need to remember to shut off the pump when he is finished, this would be a problem when washing dishes or clothes. It would also mean he will have to wait for the water to circulate and or waste the water that has been sitting in the pipes. The bottom line on these things is they save water and waste energy in the summer time. In the winter you are heating the house anyway so the heat is not wasted. (in places where you heat the house in the winter) You can get very high efficiency pumps so that is moot and again the energy ends up heating your house anyway. Summer with the A/C on is the worst case lose/lose to save a little water. It still may be worth doing if you are in a dry place like California where they are basically out of water but energy is expensive there too. Remember we will run out of water long before we run out of oil. |
#19
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Hot Water Recirculating Pump
micky wrote:
OTOH, your dishes don't scream when they get cold water splashed on them. |
#20
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Hot Water Recirculating Pump
On Tuesday, December 27, 2016 at 5:44:49 PM UTC-6, T wrote:
Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Convenience always costs more. Like a convenience store, the prices are higher. ヽ(ヅ)ノ [8~{} Uncle Costly Monster |
#21
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Hot Water Recirculating Pump
On 12/28/2016 9:02 AM, Art Todesco wrote:
I haven't done this yet but I am planning it. I have a community well for water and individual septic system. Running lots of water down the drain to get hot water is not especially good for the septic system. My plan is to use a water solenoid to dump water outside until it measures a warm temperature. By outside, I was going to dump it into one of the downspouts so it will follow the underground pipe to where it just trickles down the hillside. This would be triggered by a motion detector in the remote bathroom. As soon as the water reaches a warm temperature, probably 110 or so, it would close the solenoid. I might put in dual solenoids so if one gets 'stuck' the other will not just let the water keep running. And, also a 'sanity timer' which would only allow the solenoid open for a max of a few minutes. It's in my head but haven't done it yet. In my case, it's not wasting water as the water goes back to where is came from. Actually, it's the same as dumping it into the septic tank, except that it will be automated and will not put a load on the septic leach field. Sounds complex and wasteful just to get a little hot water. Hook the toilet to the hot. Flush and the hot water will be inches from the faucet. |
#22
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Hot Water Recirculating Pump
Ed Pawlowski wrote:
Sounds complex and wasteful just to get a little hot water. Hook the toilet to the hot. Flush and the hot water will be inches from the faucet. Always a trade-off between energy and water use. This solution by the way, can be used where a sweating toilet tank is a problem. |
#23
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Hot Water Recirculating Pump
On Tuesday, December 27, 2016 at 7:24:34 PM UTC-5, Tony944 wrote:
"T" wrote in message news Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Number one You should consider cost. Cost for installation and cost heating water because running all the time heat loses through a pipes, will need to be made up at all time. Unless you go into sophistication with regulators, high temperature pump and pressure switches Tst. ETC. And Perhaps high temperature Silicon impregnated foam Insulation. You are asking for very expansive setup. Systems like that are readily available and don't cost a fortune either. I've even seen them sold in Costco. "High temp impregnated foam insulation"? ROFL Where do you come up with this stuff? The simplest systems use a pump located at the farthest point. It includes a temp sensor, so it only runs enough to keep the water at the desired temp. Some have timers so that they only run at times when water use is expected. The big drawback is that unless you have a return line, these systems pump the water back into the cold water side. So any faucet on that cold water line, be it the kitchen sink, an ice maker, etc will at times have stale hot water in them when water is first drawn. |
#24
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Hot Water Recirculating Pump
On Wednesday, December 28, 2016 at 9:30:49 AM UTC-5, Unquestionably Confused wrote:
On 12/28/2016 8:02 AM, Art Todesco wrote: On 12/27/2016 6:44 PM, T wrote: Hi All, A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T I haven't done this yet but I am planning it. I have a community well for water and individual septic system. Running lots of water down the drain to get hot water is not especially good for the septic system. My plan is to use a water solenoid to dump water outside until it measures a warm temperature. By outside, I was going to dump it into one of the downspouts so it will follow the underground pipe to where it just trickles down the hillside. This would be triggered by a motion detector in the remote bathroom. As soon as the water reaches a warm temperature, probably 110 or so, it would close the solenoid. I might put in dual solenoids so if one gets 'stuck' the other will not just let the water keep running. And, also a 'sanity timer' which would only allow the solenoid open for a max of a few minutes. It's in my head but haven't done it yet. In my case, it's not wasting water as the water goes back to where is came from. Actually, it's the same as dumping it into the septic tank, except that it will be automated and will not put a load on the septic leach field. It almost sounds as if the OP and you are looking for wet (and hot) version of a "perpetual motion machine" Why not just go with a Watts recirculating pump and install the bypass at EACH point of use rather than just the furthest point from the hot water heater? http://www.homedepot.com/p/Hot-Water-Recirculating-System-with-Built-In-Timer-500800/100426993 or http://tinyurl.com/jz6l92o Bingo. Some people act like this is something that's never been done before, is hugely expensive, impractical, etc. Like I said, Costco even sold them at one point. The electrical draw is nominal, installation relatively easy for a homeowner with moderate skill set, and we waste no water. If you REALLY want to be anal about it and not have it run other than when you decide you want it running NOW, you can jerry-rig a wireless remote to the unit and put a transmitter, like a garage door opener, near each point of use. If you want to get creative a motion sensor that activated it when someone walked into the bathroom would be ideal. I installed one several years ago and it's worked just fine. We have ours on the built-in timer with a good-sized window of when we anticipate we're most likely to want hot water available at the tap immediately. Seems reasonable to me. My main beef with them is that without a separate return line you wind up pumping tepid water from the hot side into the cold line. And anyone pulling water from that line will get it. If it's for a drink, the kitchen, ice maker, I wouldn't like that aspect. |
#25
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Hot Water Recirculating Pump
On 12/28/2016 4:18 PM, trader_4 wrote:
On Wednesday, December 28, 2016 at 9:30:49 AM UTC-5, Unquestionably Confused wrote: On 12/28/2016 8:02 AM, Art Todesco wrote: On 12/27/2016 6:44 PM, T wrote: Hi All, [SNIP] It almost sounds as if the OP and you are looking for wet (and hot) version of a "perpetual motion machine" Why not just go with a Watts recirculating pump and install the bypass at EACH point of use rather than just the furthest point from the hot water heater? http://www.homedepot.com/p/Hot-Water-Recirculating-System-with-Built-In-Timer-500800/100426993 or http://tinyurl.com/jz6l92o Bingo. Some people act like this is something that's never been done before, is hugely expensive, impractical, etc. Like I said, Costco even sold them at one point. [SNIP II] Seems reasonable to me. My main beef with them is that without a separate return line you wind up pumping tepid water from the hot side into the cold line. And anyone pulling water from that line will get it. If it's for a drink, the kitchen, ice maker, I wouldn't like that aspect. I guess that I could have mentioned that, but in our house it's a non-issue. Since we have softened water, the only water we drink in any quantity (other than a quick swish of a small cup when brushing teeth) is from an unsoftened water tap in the kitchen or from the ice maker/water dispenser in the refrigerator. Both of those lines are hard water and, thus, out of the loop. |
#26
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Hot Water Recirculating Pump
Uncle Monster wrote:
On Tuesday, December 27, 2016 at 5:44:49 PM UTC-6, T wrote: A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Convenience always costs more. Like a convenience store, the prices are higher. ?(?)? [8~{} Uncle Costly Monster I read all the replies to this IMO brain-dead, overly-complex and highly-costly method to solve a simple problem. The easy cost-effective solution is not to move heated water but (presuming you can) move the power source. In my case it's gas. If you have electric it's already there. Oil? Wake up to the 21st century. Place the water heater in close proximity to the point of use. For my main bathroom it's in a closet underneath. For the kitchen there's another one in the basement right below. For the second bathroom it's on the same floor in the next room (another closet). I also have them plumbed so that any one heater can provide hot water for the entire house in case one or even two break down. I'm usually the first up in the morning and when I go in for my shower I turn on the water, take off my gown, and lay out the floor mat. By this time the water is steaming. 15 seconds maybe. This setup also allows for two people to have a shower at the same time and a third can run the dishwasher with no diminution in volume. |
#27
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Hot Water Recirculating Pump
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#28
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Hot Water Recirculating Pump
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#30
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Hot Water Recirculating Pump
On Thu, 29 Dec 2016 09:49:51 -0800 (PST)
trader_4 wrote: On Thursday, December 29, 2016 at 10:38:26 AM UTC-5, Penney Buck wrote: On 12/28/2016 9:24 PM, wrote: I read all the replies to this IMO brain-dead, overly-complex and highly-costly method to solve a simple problem. The easy cost-effective solution is not to move heated water but (presuming you can) move the power source. In my case it's gas. If you have electric it's already there. Oil? Wake up to the 21st century. Place the water heater in close proximity to the point of use. For my main bathroom it's in a closet underneath. For the kitchen there's another one in the basement right below. For the second bathroom it's on the same floor in the next room (another closet). I also have them plumbed so that any one heater can provide hot water for the entire house in case one or even two break down. Before you break your arm patting yourself on the back, read the original requirements. The OP was looking to save money over a continuously running loop system. How does installing up to 6 water heaters, each with their own standby losses, save operating cost? And what makes anyone think that there is room, it's practical, to put six water heaters in a typical house? Do come to the 21st century ...tankless heaters are small and awesome...electric or gas....**** you are so busy cry about hillary getting her sick ass beat...you have lost total contact |
#31
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Hot Water Recirculating Pump
On Wednesday, December 28, 2016 at 9:24:56 PM UTC-5, wrote:
Uncle Monster wrote: On Tuesday, December 27, 2016 at 5:44:49 PM UTC-6, T wrote: A customer sent me this: Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Many thanks, -T Convenience always costs more. Like a convenience store, the prices are higher. ?(?)? [8~{} Uncle Costly Monster I read all the replies to this IMO brain-dead, overly-complex and highly-costly method to solve a simple problem. The easy cost-effective solution is not to move heated water but (presuming you can) move the power source. In my case it's gas. If you have electric it's already there. Oil? Wake up to the 21st century. The electric is already where? If you had installed 3 electric WH's would the access to the power have already been where you needed it? How much wiring do you have in your closets? Did you run gas lines to all 3 locations? Did you include that cost in the pay-back calculations along with the cost of the 3 WH's and the cost of 3 standby losses? Remember, the main goal of the OP is to save money, not just have instant hot water at every fixture. Place the water heater in close proximity to the point of use. For my main bathroom it's in a closet underneath. For the kitchen there's another one in the basement right below. For the second bathroom it's on the same floor in the next room (another closet). I also have them plumbed so that any one heater can provide hot water for the entire house in case one or even two break down. I'm usually the first up in the morning and when I go in for my shower I turn on the water, take off my gown, and lay out the floor mat. By this time the water is steaming. 15 seconds maybe. This setup also allows for two people to have a shower at the same time and a third can run the dishwasher with no diminution in volume. |
#32
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Hot Water Recirculating Pump
On Thu, 29 Dec 2016 09:49:51 -0800 (PST), trader_4
wrote: On Thursday, December 29, 2016 at 10:38:26 AM UTC-5, Penney Buck wrote: On 12/28/2016 9:24 PM, wrote: I read all the replies to this IMO brain-dead, overly-complex and highly-costly method to solve a simple problem. The easy cost-effective solution is not to move heated water but (presuming you can) move the power source. In my case it's gas. If you have electric it's already there. Oil? Wake up to the 21st century. Place the water heater in close proximity to the point of use. For my main bathroom it's in a closet underneath. For the kitchen there's another one in the basement right below. For the second bathroom it's on the same floor in the next room (another closet). I also have them plumbed so that any one heater can provide hot water for the entire house in case one or even two break down. Before you break your arm patting yourself on the back, read the original requirements. The OP was looking to save money over a continuously running loop system. How does installing up to 6 water heaters, each with their own standby losses, save operating cost? And what makes anyone think that there is room, it's practical, to put six water heaters in a typical house? Most houses do not have that many wet walls. It may be fairly easy to break the hot water line at the far end of the house for a small heater. You could also put a 240v element in a smaller 120v heater so the electrical requirements would be cut by 3/4. Recovery time would not be important in an application like this. If you insulated this well, it might not cost that much. |
#33
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Hot Water Recirculating Pump
burfordTjustice wrote:
tankless heaters are small and awesome...electric or gas They may be awesome, but they aren't economical. They cost more to install and more to maintain than storage heaters. They do have benefits - essentially unlimited supply and less installation space, but you will pay more. |
#34
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Hot Water Recirculating Pump
DerbyDad03 wrote:
On Wednesday, December 28, 2016 at 9:24:56 PM UTC-5, wrote: Uncle Monster wrote: On Tuesday, December 27, 2016 at 5:44:49 PM UTC-6, T wrote: I read all the replies to this IMO brain-dead, overly-complex and highly-costly method to solve a simple problem. The easy cost-effective solution is not to move heated water but (presuming you can) move the power source. In my case it's gas. If you have electric it's already there. Oil? Wake up to the 21st century. The electric is already where? If you had installed 3 electric WH's would the access to the power have already been where you needed it? How much wiring do you have in your closets? Where? At the house. Poorly worded perhaps, but my point was that some people can't get NG, Propane costs too much, and oil lines are out of the question. Did you run gas lines to all 3 locations? I have gas lines in every room in the house and in the case of the bathrooms I was remodeling them so I was running all new electricity, all new gas and new DWV. The heater and associated supply lines were already there for the basement/cellar. Did you include that cost in the pay-back calculations along with the cost of the 3 WH's and the cost of 3 standby losses? Remember, the main goal of the OP is to save money, not just have instant hot water at every fixture. It's not just to have instant hot water; it's to avoid complex and expensive labor if anything breaks down as I know it will. My sons and I can replace a WH in about two hours including buying it and picking it up. The point of three WH's is also to avoid the dreaded "anxious buyer and rapacious and non-anxious seller" syndrome. The plumbers and even the big box stores know they've got you over a barrel when they hear that your WH is kaput. No concessions whatsoever. You pay top dollar and delivery is "When we feel like it." I maintain the same policy with all appliances: two washer/dryers, two refrigerators, two dishwashers, back-up heaters (gas) in all major rooms, and window air conditioners so I always have at least one cool room. The only thing I don't have in duplicate (at least) is the base supply (gas and electricity) but they're too costly and hard to install. |
#35
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Hot Water Recirculating Pump
On 12/28/2016 11:00 AM, Ed Pawlowski wrote:
Hook the toilet to the hot. Flush and the hot water will be inches from the faucet. You funny bunny! :-) No one actually try this. The hot water will crack a cold porcelain toilet. |
#36
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Hot Water Recirculating Pump
On 12/27/2016 09:19 PM, HerHusband wrote:
Needed: A unit that would allow remote manual operation of a standard household Hot Water Recirculating Pump from up to six locations within the house; i.e., kitchen, bathrooms, utility room, etc., anywhere hot water is needed, eliminating the need to run the hot water tap until the hot water arrives. This is the alternative to a timed or constant running Hot Water Recirculating Pump. Said he is going broke having to keep the hot water running all the time. Any of you guys have an experience with this kind of thing? Our water heater is about 40 feet from our master bath. Without a pump it takes about two minutes for hot water to reach the shower. That's a lot of water going down the drain just waiting for hot water. So, I installed a simple hot water recirculating system in our house. The pump is located at the hot water heater, and I have a small 1/2" line that returns back from the furthest shower. With the pump running we get hot water in less than 5 seconds. Our pump is on a timer and only runs a few hours in the morning, and a few hours in the evening, during the times we are most likely to need hot water. Our pipes are located below the floor, but above the insulation. So any heat loss just helps heat the house. We are all electric (heat, hot water, lighting, etc.) and I have not noticed any significant increase in our power usage compared to before we installed the recirculating pump. You could certainly install manual switches in each room instead of using a timer. However, if the pump is still back at the water heater, you'll still have to wait for the water to reach the faucet whether it's pushed by the pump or standard water pressure. The point of the recirculating pump is hot water is already at the fixture ready to go. If the pipes are accessible, you could reduce heat loss by installing foam pipe insulation. You might be able to relocate the water heater so it is closer to the rooms that use hot water the most (typically bathrooms). Or, you could install a second water heater to serve rooms on the other side of the house. You could also install small point of use water heaters. This could give you 5 gallons or so of hot water for things like washing hands, or rinsing plates. If you need more hot water than that, you would have to wait for the hot water to reach the fixture from the main water heater. Of course, you would need to run new wiring and plumbing if you add or relocate water heaters. Anthony Watson www.watsondiy.com www.mountainsoftware.com Thank you! I forwarded the advice on to the customer |
#37
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Hot Water Recirculating Pump
And what makes anyone think that there is room, it's practical, to put
six water heaters in a typical house? There are plenty of small water heaters that are designed to be placed in a cabinet or under a sink, such as this one: https://www.amazon.com/Bosch-2-7-Gal...ric-Mini-Tank- Heater/dp/B0148O658Y Obviously, a small heater like that isn't going to supply all of your hot water, but it would take care of most quick tasks. Washing your hands, rinsing a dish, etc. You could certainly install six of these small heaters in most houses, but it wouldn't make financial sense. Six small heaters would cost $960, not to mention the electrical and plumbing upgrades needed to support them. A traditional recirculating system is easier to use, takes up less space, and would probably be cheaper in the long run. Anthony Watson www.watsondiy.com www.mountainsoftware.com |
#38
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Hot Water Recirculating Pump
On Thursday, December 29, 2016 at 5:19:07 PM UTC-5,
Did you run gas lines to all 3 locations? I have gas lines in every room in the house Now that is very unusual and costly. And even if you do have gas in every room, I would expect that venting gas water heaters in any room would not be trivial. |
#39
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Hot Water Recirculating Pump
trader_4 wrote:
On Thursday, December 29, 2016 at 5:19:07 PM UTC-5, Did you run gas lines to all 3 locations? I have gas lines in every room in the house Now that is very unusual and costly. And even if you do have gas in every room, I would expect that venting gas water heaters in any room would not be trivial. I didn't run them. The house was built in the late-1800's/early-1900's and all rooms were lit by gas, the latest and greatest at the time. Subsequent modifications were just to cap the gas pipes at the point they exit the wall and install electric light beside them. The gas was also used for heating with individual gas fires in most fireplaces. Somewhat unsafe given that it was coal gas, the gas stoves lacked pilot lights, and I don't think they had even invented oxygen depletion sensors at the time. I still have one (unused) in one bathroom. As to venting the gas WH's, not too expensive. All those fireplaces had chimneys which, when open, provided good draft. But even if you didn't have easy access to a chimney a hole drilled in the wall will provide sufficient venting provided you install a "Power Vent" WH which cost about $200 more than a regular generic. I did this in the main bathroom. I could have installed one that not only vents the WH but also pulls in combustion air from outside but IIRC that would have added $400 or so. |
#40
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Hot Water Recirculating Pump
On Friday, December 30, 2016 at 10:07:24 PM UTC-5, wrote:
trader_4 wrote: On Thursday, December 29, 2016 at 5:19:07 PM UTC-5, Did you run gas lines to all 3 locations? I have gas lines in every room in the house Now that is very unusual and costly. And even if you do have gas in every room, I would expect that venting gas water heaters in any room would not be trivial. I didn't run them. The house was built in the late-1800's/early-1900's and all rooms were lit by gas, the latest and greatest at the time. Subsequent modifications were just to cap the gas pipes at the point they exit the wall and install electric light beside them. The gas was also used for heating with individual gas fires in most fireplaces. Somewhat unsafe given that it was coal gas, the gas stoves lacked pilot lights, and I don't think they had even invented oxygen depletion sensors at the time. I still have one (unused) in one bathroom. As to venting the gas WH's, not too expensive. All those fireplaces had chimneys which, when open, provided good draft. But even if you didn't have easy access to a chimney a hole drilled in the wall will provide sufficient venting provided you install a "Power Vent" WH which cost about $200 more than a regular generic. I did this in the main bathroom. I could have installed one that not only vents the WH but also pulls in combustion air from outside but IIRC that would have added $400 or so. You do realize that you're talking about a very unusual house. What percent of housing do you think has gas run to every room for lighting because it's from the 1800s? I'd suspect very few that had it, still have it. And I'd also wonder about the safety of gas piping that old. And putting in a vent for a water heater isn't nearly as simple as you make it sound. If you get lucky and there is a closet or similar location on an outside wall and that outside wall is not objectionable for a vent, then it's easy. But even then, you lose the closet. Want to give up your bathroom closet? And if it's not an outside wall or the wall is on the front of the house, then it gets difficult or impossible real fast. |
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