Gas and Oil Home Heating Furnaces - venting gas water heater through wall

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PDA
04-17-01, 11:11 AM
How much separation (clearance) is required when a double- walled three inch vent pipe from a gas hot water heater passes through an inside wall? Must a special metal through-wall mounting be used or are those mainly for single-walled vents?

fjrachel
04-17-01, 03:28 PM
You'll have to check your state and local codes for that. Here it's min. 1" from anything flamable.
PDF
04-17-01, 04:43 PM
because the unit is already installed?Or because you are going to install a unit?PDF