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Venting of gas water heaters

T

texasmarine

Guest
Can you tell me where in the code it states that a gas water heater has to be vented through a roof
 
Section G2427 IRC 2006 describes venting of equipment including terminations. Keep in mind some appliances can/are direct vent and may terminate thru the wall if designed and approved for that type of installation.
 
TexasMarine Welcome to the forum and thank you for your service!
 
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texasmarine,

Welcome to the Codes Forum! :cool: Also, "thanks for your service" too!

Water heaters are not required to be vented through the roof. It just

seems to be easier to meet the vent piping / exhaust location requirements

than going out through a side wall. Also, [ typically ] in our "neck of the

woods", most water heaters are installed in the attics and the installers

simply go through the roof.



* * * *
 
Manufacturer's specs for the appliance and the vent, in addition to the code requirements.

And, welcome to the forum also.
 
If it is a gas water heater with a b-vent it should go through the roof. Otherwise I agree with all above and most importantly, welcome to the forum.
 
There are even some water heaters that aren't vented at all now.
 
2006 Fuel Gas Code. 503.6.8 Exterior wall penetrations. A gas vent extending through an exterior wall shall not terminate adjacent to the wall or below eaves or parapets, except as provided in Sectiontions 503.2.3 and 503.3.3.

503.2.3 Direct vent appliances

503.3.3 Mechanical draft systems
 
Jobsaver said:
2006 Fuel Gas Code. 503.6.8 Exterior wall penetrations. A gas vent extending through an exterior wall shall not terminate adjacent to the wall or below eaves or parapets, except as provided in Sectiontions 503.2.3 and 503.3.3.503.2.3 Direct vent appliances

503.3.3 Mechanical draft systems
Click to expand...
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