I live in a small town in Canada where the power sometimes goes off in
winter for a few hours. Last year when when it went off for a day and it
was -20C I was concerned about frozen ho****er pipes. Does anyone know
roughly how much power a ho****er furnace takes? My system is small having
one circulation pump, a blower and one thermostat.

Instead of a generator I was thinking of a 1000W inverter and a car battery
just to keep the pipes from freezing. I see a small electrical box with a
ricker switch that is close to the furnace. I could turn it off, cut the
three wires and add a male & female prong and socket plug. When the power
goes out I could turn off the power to the furnace with the electrical box,
unplug it and plug it onto the inverter. I have a 700VA UPS that I could
also use if possible.

miker