I live in Montreal Canada. In the cold winter months, the
temperatures usually sit between -10 Celcius and -30 Celcius from the
end of december till the end of february, although it has been a bit
warmer in the last few years.
In july, it's usually 20 Celcius at night and 30 Celcius during the
Last night, for example, it was -22 Celcius. Today, maximum of -18
I heat my house with three sources : a heat-pump and an electric
furnace (installed a few years back), as well as the original
baseboards that came with the house. The thermostats for the
baseboards are almost all programmable, whereas the thermostat for the
heat-pump/furnace is not programmable.
Question 1 : My electric furnace has two heat strips. One of them is
not operational at the moment. Therefore, my baseboards are working
most of the time at this time of year, because the furnace can't
compete by itself with the low outside temperatures. Does using half-
my-furnace-plus-the-baseboards to heat my house account for as much
energy as repairing-my-furnace-and-using-a-lot-less-of-my-
baseboards ? Or am I losing a lot of money keeping my furnace in its
crippled state ?
Question 2 : Let's say that I do repair my furnace, would it be
worthwhile to install a programmable thermostat for the heat-pump/
furnace, and lower the temperature when we're sleeping and also when
we're not in the house ? That would mean from 23h00 to 05h00 every
night, and also from 07h30 to 16h30 every week day ? Or is it just
too damn cold in Canada that bringing the temperature back up would
consume more energy than is saved by lowering the temperature ?
Question 3 : In the hot summer months, again, would having a
programmable thermostat save me energy ? And does using these energy-
saving periods have an effect on ambient humidity in the house ?
Thanks for your time.