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#1
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Do propane refrigerators need to be vented outside? I have just bought a
cabin with a Consul 17 cubic foot fridge/freezer. The burner needed cleaning, as it smelled very very rich. It had a lot of soot. When I put it back together, the diffuser fell down into the exhaust pipe, and I didn't notice it. When it started smelling again, I checked it, and cleaned it again. Tell me of your experiences with propane appliances in an enclosed space. I know they can be lethal, but this has a very small burner. Nothing in the instructions mentioned outside venting. Steve |
#2
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Mine isn't vented; I don't recall the instructions mentioning it.
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#3
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![]() "Toller" wrote in message ... Mine isn't vented; I don't recall the instructions mentioning it. As well with my instructions. NO mention of venting. A Google check with a propane refrigerator manufacturer's FAQs says "if it is functioning properly", it needs no venting. I know that carbon monoxide is bad stuff, so, just wanted to ask people about their experiences. Steve |
#4
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![]() Mine isn't vented; I don't recall the instructions mentioning it. As well with my instructions. NO mention of venting. A Google check with a propane refrigerator manufacturer's FAQs says "if it is functioning properly", it needs no venting. I know that carbon monoxide is bad stuff, so, just wanted to ask people about their experiences. Don't know a thing about propane refrigerators. However, if you feel uncomfortable about it not being vented. I'd vent it. The value of peace of mind might exceed the cost of your worry. A good friend of mine from college lost a cousin due to a gas leak. He slept through the ordeal. I think it was propane he was using somewhere in his house. Sorry, don't remember the specifics. |
#5
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![]() Don't know a thing about propane refrigerators. It uses a tiny little flame. I get a month on a 20lb tank. |
#6
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On 09/06/05 09:54 pm Charlie S. tossed the following ingredients into
the ever-growing pot of cybersoup: Don't know a thing about propane refrigerators. I'm assuming that they work on a similar principle to the kerosene refrigerators I recall from a few decades back; a neighbor in a rural area of UK with no electric supply had one. Some of those used ammonia as the refrigerant, but maybe the propane ones now use Freon. IIRC, the heat of the flame raises the pressure of the refrigerant just as the compressor does in an electric refrigerator. Perce |
#7
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![]() "Percival P. Cassidy" wrote in message ... On 09/06/05 09:54 pm Charlie S. tossed the following ingredients into the ever-growing pot of cybersoup: Don't know a thing about propane refrigerators. I'm assuming that they work on a similar principle to the kerosene refrigerators I recall from a few decades back; a neighbor in a rural area of UK with no electric supply had one. Some of those used ammonia as the refrigerant, but maybe the propane ones now use Freon. IIRC, the heat of the flame raises the pressure of the refrigerant just as the compressor does in an electric refrigerator. No, completely different principle. |
#8
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![]() "Percival P. Cassidy" wrote in message ... .. I'm assuming that they work on a similar principle to the kerosene refrigerators I recall from a few decades back; a neighbor in a rural area of UK with no electric supply had one. Some of those used ammonia as the refrigerant, but maybe the propane ones now use Freon. IIRC, the heat of the flame raises the pressure of the refrigerant just as the compressor does in an electric refrigerator. Perce IIRC, the flame boils the ammonia, it condenses, and as it does, cools, hence, cooling. I know the large ice producing companies around the turn of the century were ammonia powered. NO moving parts. Steve |
#9
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Percival P. Cassidy wrote:
On 09/06/05 09:54 pm Charlie S. tossed the following ingredients into the ever-growing pot of cybersoup: Don't know a thing about propane refrigerators. I'm assuming that they work on a similar principle to the kerosene refrigerators I recall from a few decades back; a neighbor in a rural area of UK with no electric supply had one. Some of those used ammonia as the refrigerant, but maybe the propane ones now use Freon. IIRC, the heat of the flame raises the pressure of the refrigerant just as the compressor does in an electric refrigerator. Perce Look up "absorbtion cycle" (I never really understood this one when I took Thermodynamics in college.) They typically run on ammonia and water, or water and litium bromide. -Bob |
#10
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![]() I know that carbon monoxide is bad stuff, so, just wanted to ask people about their experiences. Steve Get a carbon monoxide detector and don't use any gas appliance unless the detector is working. Not worth risking a life over a $30 gadget. The other Steve B.. |
#11
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![]() "Steve B." wrote in message ... I know that carbon monoxide is bad stuff, so, just wanted to ask people about their experiences. Steve Get a carbon monoxide detector and don't use any gas appliance unless the detector is working. Not worth risking a life over a $30 gadget. The other Steve B.. Already got the top of the line Kidde. Has the digital readout, and the memory button. If anyone is considering buying a CO detector, BUY THE ONE WITH THE READOUT AND THE MEMORY. The other kind goes off when the levels are at dangerously high levels. The display units tell you what the reading is RIGHT NOW, and with a push of a button, tell you what the highest reading is from the last time you reset. No good if it goes off after you are unconscious .................. Steve |
#12
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SteveB wrote:
Do propane refrigerators need to be vented outside? I have just bought a cabin with a Consul 17 cubic foot fridge/freezer. The burner needed cleaning, as it smelled very very rich. It had a lot of soot. When I put it back together, the diffuser fell down into the exhaust pipe, and I didn't notice it. When it started smelling again, I checked it, and cleaned it again. Tell me of your experiences with propane appliances in an enclosed space. I know they can be lethal, but this has a very small burner. Nothing in the instructions mentioned outside venting. Steve Propane (actually ammonia cycle) refrigerators are common on RV's, so check RV sites on the internet. Anything with a flame needs a vent. A standard feature is to have the burner in a separate space from the actual cold space. Built in that way or the unit is on rollers and just backs into a space that is vented to the outside. Or, the unit just sits in a highly vented space such as a screened porch. |
#13
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![]() "George E. Cawthon" wrote in message ... SteveB wrote: Do propane refrigerators need to be vented outside? I have just bought a cabin with a Consul 17 cubic foot fridge/freezer. The burner needed cleaning, as it smelled very very rich. It had a lot of soot. When I put it back together, the diffuser fell down into the exhaust pipe, and I didn't notice it. When it started smelling again, I checked it, and cleaned it again. Tell me of your experiences with propane appliances in an enclosed space. I know they can be lethal, but this has a very small burner. Nothing in the instructions mentioned outside venting. Steve Propane (actually ammonia cycle) refrigerators are common on RV's, so check RV sites on the internet. Anything with a flame needs a vent. A standard feature is to have the burner in a separate space from the actual cold space. Built in that way or the unit is on rollers and just backs into a space that is vented to the outside. Or, the unit just sits in a highly vented space such as a screened porch. I was puzzled when I looked at the manual, and there was no mention of venting. Venting would not really be a problem, just some Rube Goldberg (am I dating myself?) plumbing of flues. I would have to drill a rather large hole through six inches of solid wood exterior wall, but really, not a big job to vent the thing. Just seeking understanding before I go hacking and cutting. Steve |
#14
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![]() "SteveB" wrote in message news:YouTe.74197$DW1.73091@fed1read06... "George E. Cawthon" wrote in message ... SteveB wrote: Do propane refrigerators need to be vented outside? I have just bought a cabin with a Consul 17 cubic foot fridge/freezer. The burner needed cleaning, as it smelled very very rich. It had a lot of soot. When I put it back together, the diffuser fell down into the exhaust pipe, and I didn't notice it. When it started smelling again, I checked it, and cleaned it again. Tell me of your experiences with propane appliances in an enclosed space. I know they can be lethal, but this has a very small burner. Nothing in the instructions mentioned outside venting. Steve Propane (actually ammonia cycle) refrigerators are common on RV's, so check RV sites on the internet. Anything with a flame needs a vent. A standard feature is to have the burner in a separate space from the actual cold space. Built in that way or the unit is on rollers and just backs into a space that is vented to the outside. Or, the unit just sits in a highly vented space such as a screened porch. I was puzzled when I looked at the manual, and there was no mention of venting. Venting would not really be a problem, just some Rube Goldberg (am I dating myself?) plumbing of flues. I would have to drill a rather large hole through six inches of solid wood exterior wall, but really, not a big job to vent the thing. Just seeking understanding before I go hacking and cutting. Steve My understanding of propane (absorption) refrigerators is that they contain a mixture of ammonia and water. The mixture is heated and the ammonia vaporizes. As the vaporization occurs the result is expanding gas. Expanding gases absorb heat, hence the name. This is easily demonstrated by using any spray can or letting the air out of a tire or tank of compressed gas/air. You can feel the can/tank get colder. If you let the air out of a SCUBA tank ice will form on the valve. I would not use one without venting. Although there is a small flame there will still be some CO present. Besides that you will get some soot. There is probably a baffle inside the flue or chimney that needs to be able to move freely. Soot can also build up inside the chimney and it should be cleaned occasionally, perhaps once a year. It is also VERY important that the coils be cleaned and free of dust and goop. The refrigerator will cool much more effeciently with clean coils. Also keep your burner clean and make sure it has a good-looking blue flame. If it is all clean and working properly you will have less soot and probably less CO. One of the beauties of the RV type units is that they also contain heating coils that operate from 12 VDC or 120VAC or both. If you run out of propane you can hook it up temporarily to a battery or to an AC supply. The older ones (probably built before the 90's) needed no connections other than propane but the newer ones require a 12VDC source to operate. I think the older ones are better. |
#15
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![]() "Ulysses" wrote in message I would not use one without venting. Although there is a small flame there will still be some CO present. Besides that you will get some soot. There is probably a baffle inside the flue or chimney that needs to be able to move freely. Soot can also build up inside the chimney and it should be cleaned occasionally, perhaps once a year. Propane gas ranges and ovens have been used in homes for decades and have no venting and no soot buildup. In my house, the CO detector is about 10 feet down the hallway from the kitchen. With 4 burners and the oven going, it gets no reading from the range. I don't see a problem. |
#16
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![]() "Ulysses" wrote in message ... "SteveB" wrote in message news:YouTe.74197$DW1.73091@fed1read06... "George E. Cawthon" wrote in message ... SteveB wrote: Do propane refrigerators need to be vented outside? I have just bought a cabin with a Consul 17 cubic foot fridge/freezer. The burner needed cleaning, as it smelled very very rich. It had a lot of soot. When I put it back together, the diffuser fell down into the exhaust pipe, and I didn't notice it. When it started smelling again, I checked it, and cleaned it again. Tell me of your experiences with propane appliances in an enclosed space. I know they can be lethal, but this has a very small burner. Nothing in the instructions mentioned outside venting. Steve Propane (actually ammonia cycle) refrigerators are common on RV's, so check RV sites on the internet. Anything with a flame needs a vent. A standard feature is to have the burner in a separate space from the actual cold space. Built in that way or the unit is on rollers and just backs into a space that is vented to the outside. Or, the unit just sits in a highly vented space such as a screened porch. I was puzzled when I looked at the manual, and there was no mention of venting. Venting would not really be a problem, just some Rube Goldberg (am I dating myself?) plumbing of flues. I would have to drill a rather large hole through six inches of solid wood exterior wall, but really, not a big job to vent the thing. Just seeking understanding before I go hacking and cutting. Steve My understanding of propane (absorption) refrigerators is that they contain a mixture of ammonia and water. The mixture is heated and the ammonia vaporizes. As the vaporization occurs the result is expanding gas. Expanding gases absorb heat, hence the name. This is easily demonstrated by using any spray can or letting the air out of a tire or tank of compressed gas/air. You can feel the can/tank get colder. If you let the air out of a SCUBA tank ice will form on the valve. I would not use one without venting. Although there is a small flame there will still be some CO present. Besides that you will get some soot. There is probably a baffle inside the flue or chimney that needs to be able to move freely. Soot can also build up inside the chimney and it should be cleaned occasionally, perhaps once a year. It is also VERY important that the coils be cleaned and free of dust and goop. The refrigerator will cool much more effeciently with clean coils. Also keep your burner clean and make sure it has a good-looking blue flame. If it is all clean and working properly you will have less soot and probably less CO. One of the beauties of the RV type units is that they also contain heating coils that operate from 12 VDC or 120VAC or both. If you run out of propane you can hook it up temporarily to a battery or to an AC supply. The older ones (probably built before the 90's) needed no connections other than propane but the newer ones require a 12VDC source to operate. I think the older ones are better. I forgot to mention that it must be level. You can get an omnidirectional bubble level from an RV store for about a dollar or so. Put it inside the (clean, frost-free) freezer compartment and check it. |
#17
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[original post is likely clipped to save bandwidth]
On Wed, 7 Sep 2005 08:09:48 -0700, "Ulysses" wrote: My understanding of propane (absorption) refrigerators is that they contain a mixture of ammonia and water. The mixture is heated and the ammonia vaporizes. As the vaporization occurs the result is expanding gas. Expanding gases absorb heat, hence the name. This is easily demonstrated by using any spray can or letting the air out of a tire or tank of compressed gas/air. You can feel the can/tank get colder. If you let the air out of a SCUBA tank ice will form on the valve. A level of abstraction may help. All heat pumping devices use some form of potential energy to transport thermal energy from or to a desired place. Folks accept that building a fire can be used to refrigerate! Light a fire at a coal power plant, make steam, then electricity, send it to a home and use it to operate a refrigerator. The source of the needed energy is a fire at a coal burning power plant! Take out a few steps and you have fire to cold in one box! A compressor is a pump. Gas refrigerators have a pump! The percolator is a pump, it creates enough pressure differences and mechanical "refrigerant" transport to use heat of vaporization just as an electric driven refrigerator does. The combination of water, ammonia highly pressurized with hydrogen set the stage to do it all in one box. gerry -- Personal home page - http://gogood.com gerry misspelled in my email address to confuse robots |
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