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Will existing boiler handle addittional load?

pkovo
10 years ago

Current home is approx 1100 square foot 1 story. Oil burning Hot water baseboard setup. Boiler is a Burnham v73. Setup with 2 zones....one for heat on 1st floor, one for Amtrol indirect hot water tank.

I am in the early stages of designing a second story. Cape style, 700 sq ft, approx 550 is comprised of 2 bedrooms and a bath, the rest is stairs hallway. I'm in West Central NJ.

My question is, just shooting from the hip, is my boiler up to the task of another zone to heat the 3 new rooms. On paper it seems it is, but would like some feedback.

Obviously this is shooting from the hip without doing calculations, but trying to figure out if I likely should have any concern.

8 foot ceilings on main level, and 95% of new level.

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