Single story houses require more heat than their two story counterparts, square footage being equal.
Your electricity consumption may not be out of line even though it's on the side side. Keep in mind that $100 - 200 of the bill could be attributed to other electrical loads and possibly water (some utilities such as powerstream bill for water on behalf of the municipality); electricity per unit of energy (HP provided 3 units of heat per unit of hydro consumed) is far more expensive than fossil fuel.
How many kwhs per day does the house use when with no a/c or pool pump running?
With a COP of around 3 (low by today's standards), at current electricity prices (distribution charges included, not just generation) your system should cost more to operate than a high efficiency nat gas furnace, but a little less than a standard electric or propane system.
Electricity price is quoted as 9.9 cent per KWH at peak, 8.1 mid peak and 5.1 off peak. During the Nov-Dec period we consumed a total of 2,746 KWH at a total cost of $415.81 (HST incl.) thereby costing an average of 6.6 cent per KWH.
That doesn't sound right.
Is water included on the bill?
Electricity (ontario) should be costing you 9-15 cents per kwh depending on your utility and when you use it.
Propane cost delivered is 79 cent per litre
Propane = 24 200 Btu / Liter
At 95% efficiency and 79 cents, propane costs $3.44 per 100 000 BTUs
Electricity = 3400 BTUs per kwh
@ COP 3 = $0.98 per 100 000 BTUs during off peak including all charges (10 cents)
= $1.47 per 100 000 BTUs @ on peak including all charges
*Mid peak = somewhere in the middle.
Nat gas = 36000 BTUs per m3, 24 cents
= $0.70 per 100 000 BTUs, but it's dirt cheap right now.
The case for switching from a GSHP to propane furnace can not be made.
To reduce energy costs, consider...
- Maintaining a constant temperature so the heat strips don't have to kick in to bring the temperature up. (if you insist on setting back the stat, set it to recover during the off peak period - ie 4-7am)
- Using the propane fireplace only during peak periods if it's energy efficient (many fireplaces aren't)
- Draft proofing and adding attic insulation if the house is over 20 years old.