How much does it cost to run an electric furnace in the High Desert?
Per BTU, electric resistance heat typically costs roughly 3 to 5 times more than natural gas, about 2 to 3 times more than propane, and 2.5 to 4 times more than a heat pump at current SCE rates. On a 1,800 sq ft Wrightwood home with peak-rate electric, expect $250 to $450 a month in January. Net-metered solar can cut that dramatically. We run the actual rate math on your bill, because the gap moves with your rate plan and propane price.
Should I install an electric furnace or a heat pump?
Heat pump in nearly every case unless: (1) you cannot get a heat pump permitted or financed, (2) you have so much excess solar that operating cost is irrelevant, or (3) you only need backup heat to a primary wood stove or solar-thermal system. Modern heat pumps work down to 5 degrees F and pay back the upfront cost difference in 3-5 years via lower operating cost.
How long does an electric furnace last?
15-25 years typical. Far longer than gas (which has heat exchanger fatigue). The trade-off is the multi-thousand-dollar electric bills over those decades. JCE service plan keeps elements, sequencers, blower motor under preventive maintenance.
What size electric furnace do I need?
10-25 kW depending on HD location and home size. Our
AC Sizing Calculator works for heating BTU too (most HD homes need similar heating + cooling BTU). 1 kW of resistance heat = 3,412 BTU. A 60,000 BTU heating load needs ~18 kW of resistance heat. We Manual J on every install.
Will solar offset my electric furnace operating cost?
Partially or fully, depending on your PV size. A 6-kW solar array produces ~800-1,000 kWh/month in HD. A 1,800 sq ft electric-heated home uses 1,500-2,500 kWh in January. Net metering closes the gap. If you have 10+ kW of solar with NEM 2.0/3.0, electric resistance becomes competitive with gas.
