Quote:
Originally Posted by berniebenz
Based upon your reports, apparently the A7 is capable of supplying normal residential DHW requirements.
However, in the winter cold season my DHWH, thru a HX, also supplies my in floor radiant system, a substantially greater demand. During this short cold period my thought is to use the propane fired DHWH as a low set point pre heater and the A7 as the secondary top off heater. Relative set points to be determined.
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The A7 isn't outdoor compatible though is it? If you run something like this in an enclosed space and try to heat a different area you'll freeze the basement or garage or wherever this is going to go. Works great for water because it's not that large of a load.
What you need is something like this.