Home |
Search |
Today's Posts |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Best way to add HW Heater to system?
Just wanted some opinions on the best way to add a HWH to the system. The
problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. v/r Jerry |
#2
|
|||
|
|||
BRAVO52 wrote: Just wanted some opinions on the best way to add a HWH to the system. The problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. v/r Jerry Consider a tankless water heater, here are some brands: http://www.plumbersurplus.com/Category.aspx?ID=8 You can install them at the point of use, or use them for the whole house. |
#3
|
|||
|
|||
In article , bravo52
@aol.com (BRAVO52) says... Just wanted some opinions on the best way to add a HWH to the system. The problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. Have you considered flow limited shower heads? -- http://home.teleport.com/~larryc |
#4
|
|||
|
|||
I know you said that the problem wasn't the temp, but the amount - but
consider that by turning up the temp on the WH, the user will draw less hot water during a shower (i.e. keep the mix closer to warm instead of all the way to hot), which means more hot water will be available. Of course, you run the risk of scalding that way if you turn it up too much. I do know that you DO NOT want to add a water heater in series; if you decide to add another one, it should be in parallel with the existing one - but it's tricky to do. The lengths of all the pipes between the 2 WH's MUST be IDENTICAL; as I recall a very small variance can really screw things up. If you decide to add another, I recc you call around and have it done professionally. |
#6
|
|||
|
|||
BRAVO52 wrote:
Just wanted some opinions on the best way to add a HWH to the system. The problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. v/r Jerry Hot water doesn't need to be heated. |
#7
|
|||
|
|||
Showers take a lot less water than sit down baths. Might be worth asking
them to shower instead. If a 50 electric isn't supplying the heat, it makes me wonder if you have a bad dip tube, or perhaps the bottom element isn't heating. A plumber oughta be able to answer these. I think I remember that gas heaters recover more quickly. Do you ahve gas or propane available? -- Christopher A. Young This space intentionally left blank www.lds.org www.mormons.com "BRAVO52" wrote in message ... Just wanted some opinions on the best way to add a HWH to the system. The problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. v/r Jerry |
#8
|
|||
|
|||
"Matt" wrote in message I do know that you DO NOT want to add a water heater in series; if you decide to add another one, it should be in parallel with the existing one - but it's tricky to do. The lengths of all the pipes between the 2 WH's MUST be IDENTICAL; as I recall a very small variance can really screw things up. And how/why do you know this? Series makes more sense to me. Then you can turn the first one off if you don't need it. Bob |
#9
|
|||
|
|||
BRAVO52 wrote:
Just wanted some opinions on the best way to add a HWH to the system. The problem is not the temperature of the water but the amount. The current electric tank is 50 gals and I have two girls and a boy to deal with. I don't think the volume is enough. The question is do I add it in series (as a "pre-warmer") or do I add it closer to the other side of the house (parallel to the system)? I'm not really interested in a tankless water heater. v/r Jerry It's far, far easier to adjust the bathing methodologies. For example, in showering, the kids may be turning the HOT all the way up then adjusting the temperature with the COLD. Have them turn on the COLD for the proper flow, then adjust the temperature with the HOT supply. You can get a shower head on a flexible hose with a push-button - the navy uses them. Wet down, lather up, rinse. Uses about two cups of water for the whole shower. If they bathe instead of shower, they may be generating a miniature swimming pool. |
#10
|
|||
|
|||
Dude -
As a user of the standard navy issue showering equipment for 4 years......... what you are suggesting is cruel and unusual punishment. Water saving - yes. Enjoyable - no. One of the things I most looked forward to when getting out of the service was a return to a normal, human shower. |
#11
|
|||
|
|||
|
#12
|
|||
|
|||
Disagree Steve......
As another poster said, hot water does not need to be heated. Hooking 2 heaters in series will not double capacity, it will however double your fuel bill and cut the life of both water heaters in half. No disrespect intended, but it just doesn't work that way. Matt |
#13
|
|||
|
|||
Hmm.... I believe the answer is, for the question "series or parallel connection, for water heaters?" is, "it depends". For same-sized tanks, the best method is reverse-return. I absolutely disagree with the statement "Hooking 2 heaters in series will not double capacity, it will however double your fuel bill and cut the life of both water heaters in half.". It may be worse, or it may be better, depending on the scenario. Try this: http://www.contractormag.com/article...m?columnid=260 No disrespect intended, but there is way to little information about the specific setup to make a recommendation. Matt wrote: Disagree Steve...... As another poster said, hot water does not need to be heated. Hooking 2 heaters in series will not double capacity, it will however double your fuel bill and cut the life of both water heaters in half. No disrespect intended, but it just doesn't work that way. Matt |
#14
|
|||
|
|||
I read the article, and although they do say that a series
configuration will work (which is news to me, I admit), virtually all of the rest of the article says use parallel. The only benefits listed to using a serial configuration were cheaper to install and less piping to run. "Although series piping can shave costs and work quite well under many circumstances, the first tank once again sees the lion's share of the workload and will no doubt fail long before the second tank. If a bypass piping arrangement is not in place when that happens, interruption of service is assured until the first tank is replaced. " I still maintain the way to go is parallel in all circumstances. |
#15
|
|||
|
|||
On 30 Dec 2004 07:51:43 -0800, "Matt" wrote:
Disagree Steve...... As another poster said, hot water does not need to be heated. Hooking 2 heaters in series will not double capacity, it will however double your fuel bill and cut the life of both water heaters in half. No disrespect intended, but it just doesn't work that way. Matt Yes it does work that way... Cold water flows in to the bottom of the first tank pushing the hot water out of the first tank in to the bottom of the second tank which pushes that hot water out the top of the second tank on to the shower. So you will fill the first tank from the bottom to top giving you 40 gals of hot water then you fill the second tank from top to bottom giving you a second 40 galls of water. Fuel usage increase will only be from the reheating of the addtional water it wasnt possible to use before and the standing loss of the additional tank which isnt that great now days since tanks are hightly insulated. This setup is very common in high end homes with the huge garden tubs. And yes hot water does need to be heated. 60 degree water is "hot" compared to 32 degree water but that doesnt mean i want to take a shower in it. Thats a stupid semantics game and I would think most here were past the age of twelve when those things were funny. Steve B. |
#16
|
|||
|
|||
On 30 Dec 2004 08:46:19 -0800, "Matt" wrote:
I still maintain the way to go is parallel in all circumstances. No disrespect intended but your still wrong.. http://www.rheem.com/includes/resour...ryPDF/1231.pdf While parallel would be superior in some applications series is also a reccomended configuration especially if you have two different tanks with different btu capacity which the OP will most certainly have unless he wants to add a new tank and replace his existing tank. Steve B. |
#17
|
|||
|
|||
Steve -
I already admitted it would work, and that this fact was news to me. As for the rest, I was just quoting from the source you provided - and if you re-read it, I think you'll see the consensus is to not go series. Now go untwist your panties and come back when you have cooled down a bit. |
#18
|
|||
|
|||
On 30 Dec 2004 13:39:22 -0800, "Matt" wrote:
Steve - I already admitted it would work, and that this fact was news to me. As for the rest, I was just quoting from the source you provided - and if you re-read it, I think you'll see the consensus is to not go series. Acutally no you weren't quoting from the source I provided and had you bothered to read the link I provided you would plainly see that they reccomend that series is the way to go when you have two different water heaters. Now go untwist your panties and come back when you have cooled down a bit. I'll untwist my panties the day people like you who have no f'ing clue how something works stop posting their hallf assed assumptions on here as facts. Until that time I will continue to twist/untwist my undergarmets in any manner I so choose. Now go read and book and come back when you have a clue. Steve B. |
#19
|
|||
|
|||
Well, that day isn't coming anytime soon, Stevie. I recommend you stock
up on some gold bond to help with your panty chaffing. (And that's a fact - not an assumption). |
#21
|
|||
|
|||
"Matt" wrote in message oups.com... Steve - I already admitted it would work, and that this fact was news to me. As for the rest, I was just quoting from the source you provided - and if you re-read it, I think you'll see the consensus is to not go series. Now go untwist your panties and come back when you have cooled down a bit. I have read all the posts and any links and I see nothing that said that hooking them up in series is a poor way to go. just that the first heater will be doing most of the work, and will not last as long as the second. So my question is, "what is not as long?". Say you normally get 15 years on a water heater. Will the first in serries last only 7, the second 15 years? Or, will the first last 15 years, and the second 25 years? No where did they say it would shorten the life of the heater, just that it would not last as long as the second heater. My bet is it may shorten the life of the first heater slightly, but greatly extend the life of the second. In parrallel they would run close to the same life. Also your statement that hooking heaters in series will cost more is rediculous. It will cost you the same to heat a gallon of water either way, one way will not heat water more efficiantly, (cheaper), than the other. The second heater in a series set up may never run, depending on water usage, other than to re-heat the water if it cools during times of no hot water use. I have seen quite a few homes with two heaters hooked in series. The second heater in most cases was not even connected to electricity, it was just a storage tank. A small circulating pump was connected to circulate water between both heaters. I also have seen homes with one gas, and on electric heater, again hooked in series. We have "off peak" electric in our area and the electric utility will shut off the power to the electric heater in high demand times, and the gas heater will take over. Greg |
#22
|
|||
|
|||
On 30 Dec 2004 07:51:43 -0800, "Matt" wrote:
Disagree Steve...... As another poster said, hot water does not need to be heated. Hooking 2 heaters in series will not double capacity, it will however double your fuel bill and cut the life of both water heaters in half. No disrespect intended, but it just doesn't work that way. Matt HUH ???? rj |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
AquaTherm Furnace - No Hot Water Issue | Home Repair | |||
Hydronic Unit heater motor question. | Home Repair | |||
more fun with air conditioning | Home Ownership | |||
Spa Heater (Laars) Won't Stay On | Home Repair |