is it ok to have a propane water heater duct in flue with furnace?
Posted on | August 30, 2010 | 5 Comments
Question by cytafex: is it ok to have a propane water heater duct in flue with furnace?
Best answer:
Answer by John M
Perfectly fine…
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5 Responses to “is it ok to have a propane water heater duct in flue with furnace?”
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August 30th, 2010 @ 9:16 pm
Yes, it the duct size meet the minimum of both.
August 30th, 2010 @ 9:44 pm
Check with your local Building Code office. In the 3 States I have lived in, it is not allowed. The problem is that when one or the other is on, the flue gas could back feed into the other duct and enter the home.
August 30th, 2010 @ 10:24 pm
Proper draft without ‘feedback’ is the issue.
If the flues are properly designed, it can de done, but it
must be done right.
August 30th, 2010 @ 11:00 pm
mine are and it is a fairly new furnace…
edit: if raw gas filled your basement it could explode too…where is the gas going to come from
August 30th, 2010 @ 11:37 pm
NO ! This is forbidden by building code. They require seperate chimneys. If raw gas were to escape into the chimney while a fire is burning, an explosion can result.