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07-11-2010, 10:19 AM #1
Water Heater Clerances from Combustible
Does anyone know the typical manufacturer clearances of the burner compartment from combustible material, seems wrong here....
Similar Threads:Last edited by brianmiller; 07-02-2013 at 04:47 PM.
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07-11-2010, 10:49 AM #2
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07-11-2010, 12:07 PM #3
Re: Water Heater Clerances from Combustible
Typically 4" out from the valve, Six inches out from the plate. Remaining pan area 2" out from jacket for air flow even if zero clearance to combustibles. 24" out front unobstructed front for servicing, top of jacket 12" up.
Are you (in NM) allowed to use a six-foot gas appliance connector for a Water Heater in this unprotected high-traffic location? Sediment trap lower than gas valve?
Last edited by H.G. Watson, Sr.; 07-11-2010 at 12:13 PM.
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07-12-2010, 10:34 AM #4
Re: Water Heater Clerances from Combustible
The unit pictured is a sealed combustion chamber. But there needs to be enough clearance to service the heater. That type of heater requires the whole burner Assembly to be removed to just change the thermocouple, and to clean any dust out from the combustion screen inside the heater.
Last edited by Ron Hasil; 07-12-2010 at 10:38 AM. Reason: added photos
Ron Hasil IL Plumbing Lic #058-160417
A-Archer Sewer & Plumbing specializing in:
Tankless Water Heaters | Drain and Sewer Cleaning | Sump and Ejector Pumps | Backflow RPZ Testing
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