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Oil vs gas
pipers
Member Posts: 21
Why are tankless coils usually found in oil and not gas boilers
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Comments
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Guy at work said mentioned something interesting he said that a gas boiler would just have a hot water tank because there is gas for the boiler and can be used but oil boiler would require a gas line to be installed so they would just put coil in an oil fired boiler0
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They make oil direct fired tank water heaters such as those made by Bock, they are common in homes with oil furnaces. I don't know why an oil boiler would require a gas line to be installed.0
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Direct oil fired water heaters are very expensive compared to an ordinary electric hot water tank or a tankless coil in an oil fired boiler.—
Bburd0 -
That they are. They also have extremely fast recovery. They also last a good long time -- I have three I care for with a combined age of somewhere around 50 years. Cheap to run, too, compared to electric.bburd said:Direct oil fired water heaters are very expensive compared to an ordinary electric hot water tank or a tankless coil in an oil fired boiler.
Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Has anyone ever figured out what the oil cost to operate? I was told why oil and not gas was a mass factor -- oil boilers had more mass and stayed hotter. My sister had one and that thing was always going on and off. I had a few weekend places in PA with forced oil and oil HW. They were great ... 30g and they would heat from cold in no time.
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What oil costs to operate? Not quite sure what that question is trying to get at -- are you asking about dollars per BTU in oil vs. dollars per BTU in gas? That's a marketing (and to a certain extent regulatory) question, not really a heating question.
I think one needs to be rather careful about confusing characteristics of fuel types (oil, gas, coal, wood, hydrogen...) and burner types (power, atmospheric, forced draught, induced draught, whatever), heat transfer system type (forced air, gravity air, forced hot water, gravity hot water, steam, high mass emitters, low mass emitters, etc. etc.) and boiler or furnace construction (low mass, high mass, single pass, multipass, whatever).
People don't. When one fails to, comparisons are useless, if amusing.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Weil McLain still offers (I believe) a gas boiler with a tankless coil. It uses a 3 way valve for priority domestic.0
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