We need a federal rebate program for heat pumps.
The future is air to air heat pumps. The Mitsubishi Zuba claims to have 100% heating capacity at -10 C & around 80% efficiency in -20 to -30 C.
http://www.mitsubishielectric.ca/en/...me-owners/zuba
We need more development in this field to get the heat pumps where they are 100% effective in -40 C, and then you have basically solved the heating problem. Run a sizable federal rebate for all heat pump installations for new builds or retrofits, and people will go this route. The carbon tax pushes people in this direction (big influence on our decision), but a rebate to help pay for some upfront costs would help a LOT.
For a water to air system, if you are lucky enough to live in an area where there is good well water supply to install it, and you need more than 10 tons, the government should help way more. The savings are massive for 25 years, which tends to be the lifespan of the unit.