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2 over-sized boiler questions
According to my calculations, my present boiler is more than 50% oversized. If that's right, does that mean that I'd cut my fuel usage in half if I had a properly-sized boiler at the same efficiency? (I'm thinking it's not that simple, but I can hope).
Right now, the boiler is never shut off by pressure, only by the thermostat. It never gets above 5 oz/in2. When I raise the thermostat 1° after I've added water, then it does shut off on pressure. Right now I have the thermostat set at a constant temperature 24/7. Would it be more efficient to program in two 1° set backs instead?
1929 Ideal Heating vapor system.