Hey Metro...after March, where are you moving to?

Ontario - 1000 Islands. I just came east for the winter.

Gotcha. Just wondering what you're going back to. I'm curious to see what new things you're going to do to your new(old) dwelling when you return.

Oh, I mostly spend the summers on my boat. Even less insulation than this apartment! (And smaller!)

So, it's been long enough since the radiant floor heating was switched on (downstairs tenant using the furnace) that I have a picture of how it's affected my power use:

I compared 3 days this week against days in the pre-heated floor era where the daily low temperature was within +-1C of each of the recent 3 days.

That worked out to comparing 3 days to 21 previous days this winter.

The result: average of 16% lower energy usage since the radiant floor tenant moved in! :D

And that's without me turning down the thermostat. But with the superior comfort of a radiant floor, I think I can twist the dial back another notch or two without sacrificing any comfort. I didn't want to do this until I had some "controlled" stats, but now that I've got those, even more savings are in the works.

We had the windows open all day and night usually, when we lived in an upstairs apartment... the thermostat was controlled by the downstairs neighbor, and she liked it 80. Good thing the heating bill was covered in the rent!

Have you thought about getting a window heat pump?