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Future oil and gas pricing aside, additional weighing factors were switching to a gas stove and making space in the basement for my husband's woodshop (op is a she :)) - getting the oil tank out and reducing boiler size matters. Based on Dana's analysis (thank you!) I spent a good amount of time...

Ok so, I think I've got this figured out - 171.5 gallons * 138,690 btu/gal * 0.78 eff / (1810.8 HDD * 24 hr/day) = 426.9 btu/HDD hr with base temp set to 60 (we set to 60 at night and while at work) 99% heat load (0F outside, 70 inside): 70*426.9 = ~30K BTUH typical heat load (30F outside, 65...

Hi Dana, thank you for the reply! Between 1/5 to 2/17 we used 171.5 gallons, 2/17-3/30 was 131.8. Zip code is 02474. The only heat source we have is the nearly 60 yr old oil boiler, and it is via ~100 ft of hot water baseboard all on 1 zone. A few other points of note - the basement (530 sqft)...

Hi there. Apologies if this goes against the rules of the forum, but can anyone recommend a contractor in the greater Boston area who will appropriately size a boiler for me? So far everyone has recommended 100k+ BTU boilers for our 1600 sqft house. We are converting from oil, the house was...