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How do i size a residential gas boiler? - Heating & Cooling

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Depend on what part of the country the standard for r-values for homes are! Check a reputable contractor or better yet, call the city mechanical inspector for the correct Btu's per sq. footage of dwelling or establishement! Thank-you-very-much!

Posted on Aug 26, 2008


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What's your problem?Power vent starts, unit will not fire up. Red light on board flashes steady.

Water heater and type of gas valve are not identified.
Add a comment and describe the 'board' you are talking about, and include brand and model number of water heater shown on label on side of tank for possible identification.
If this is a boiler or commercial water heater, then repost question for another expert.

First step for residential water heater is to identify gas valve to download error codes, and possible service manual.

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The hot water and central heating wont work together

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