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    acs97's Avatar
    acs97 Posts: 2, Reputation: 1
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    #1

    Oct 18, 2006, 10:04 AM
    Adding second water heater
    Quick question on adding a second water heater in my house for some radiant floor heating in the basement. I currently have a 100,000 BTU furnace and a 40,000 BTU hot water heater both venting out the same chimney. If I add another hot water heater, how many BTU's can I get away with and still allow it to vent with the other two out that chimney? Thanks a bunch!
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
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    #2

    Oct 18, 2006, 01:48 PM
    Quote Originally Posted by acs97
    Quick question on adding a second water heater in my house for some radiant floor heating in the basement. I currently have a 100,000 BTU furnace and a 40,000 BTU hot water heater both venting out the same chimney. If I add another hot water heater, how many BTU's can I get away with and still allow it to vent with the other two out that chimney? Thanks a bunch!
    Before I could begin to answer that question. I'd need to know the diameter of the pipes, the length of the pipes and weather or not anything is power vented.
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