Quote:
Originally Posted by dkpbxman
I have an indirect hook-up between my 40 gal. SuperStor hot water storage tank (16 years old) and my Weil-Mclain 68 oil-fired boiler. About how much power should I allow for heating the water?
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The water is heated off the boiler. Simply allowing for the boiler is all that's needed. The load doesn't change because the water tank call the boiler. It's just one more circulator or zone valve running. Neither of those two is any noticeable draw.
As far as startup loads, figuring for the largest load is fine as long as only that load is starting. What if there is a 50% load on the genny and a large motor load, such as an A/C, comes on? Your startup figure just went out the window.