Outside reset for oil boiler
I am shopping for a new oil boiler, and recently someone suggested an outside reset as a way to increase the efficiency of the new boiler and reduce energy costs. I don't have the estimate yet, I am waiting for him to get back to me. He did say it would add to the cost of the boiler and install. I have hot water baseboard heat. He said the water gets heated to 180 degrees but really only needs to be heated that high when it is very cold out, and heating the water to a lower temp, like 120 or 140 when it isn't as cold out would give significant savings. I can't find anything about this here. I have no idea yet what the cost will be, but is this usually a worthwhile option?