Would the problem become easier if you put the burner outside the house?
Perhaps use a Babington burner to heat water for a tank vented to atmosphere,
heat exchanger to draw heat from the tank, secondary loop of the exchanger
tapped into the boiler of the house furnace. Alternatively, a
Use a simple diesel genset a 4500w uses 4 gallons a day, pump all the
heat to the basement, keep the hot water tank over 100, 75 on second
floor and @ 60-65 on the third floor, enough excess power to keep
three of your neighbors happs too, eh? Hope one has a hot tub, I hate
using raw veg oil
