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Author Topic: Expansion tank  (Read 177 times)

coolidge

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Expansion tank
« on: July 12, 2018, 05:05:25 PM »

Is there a percentage you can use to size a tank? If you have 400 gallons of water, 10 percent = 40 gallon tank?
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Western Maine

wreckit87

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Re: Expansion tank
« Reply #1 on: July 12, 2018, 06:43:45 PM »

Check Amtrol's website, they make a pretty cut and dried list for XT sizing. Depending on the emitters and temp range, the tanks might end up much smaller than you think. For example, a 200k BTU system using CI radiators would be fine with a 14 gallon XT. A 30,000 sq ft radiant floor (276 gallons) would use a 10 gallon XT. Typical residential systems would never need more than a 2 gallon tank but that's of course going to be specific to each particular scenario
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schoppy

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Re: Expansion tank
« Reply #2 on: July 12, 2018, 09:26:26 PM »

you have a pressurized/sealed system with 400 gallons in it?
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coolidge

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Re: Expansion tank
« Reply #3 on: July 13, 2018, 03:08:29 AM »

I have my 330 gallon storage tank in my basement.
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