Furnace chimney liner


Old 05-18-01, 02:21 AM
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I need to install a furnace chimney liner. There is a four inch duct coming out of the forced air furnace into the unlined chimney. Do I use a four inch duct going up the chimney?

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Old 05-18-01, 02:50 PM
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I need

the following information....

#1,btu of furnace
#2,does any other device use the same chimney
#3,what is the height of the chimney.

Old 05-19-01, 03:26 AM
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Thanks for your reply. The answers to your questions are as follows:

Its a 100,000 BTU furnace and a hot water heater is on the same chimney right now but I plan to tie into the furnace pipe before it goes into the chimney. The house is a single story ranch and the chimney from entry point in the basement to the top is about twenty five feet or so.
Old 05-19-01, 05:15 AM
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Forgot to ask what type liner are you going to use?PDF
Old 05-19-01, 12:40 PM
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Good question? What would be the best and the easiest to install?
Old 05-20-01, 10:11 AM
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There are a bunch

of different liners to use,single wall,double wall "B" vent,masonry and a flex liner.Your furnace is 100,000 buts,water heater approx.35,000 btus.You will need a 5" vent or liner for the chimney and a 6" single wall vent from appliances.PDF

[Edited by PDF on 05-20-01 at 01:24]

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