Electric furnace installation cost

Electric resistance furnaces are the cheapest heating system to install but the most expensive to operate in most US states. They make sense in a narrow set of situations: mild climates, no gas main, or as backup heat in a dual-fuel system.

Electric furnace installed cost in 2026: $2,500 to $5,500. Cheapest to install (no gas line, no flue, no heat exchanger). Annual operating cost is $1,200 to $2,500, roughly 2 to 3x a gas furnace at the same heat output.

Cost by capacity

Electric furnaces are sized in kilowatts (kW) and rated in BTU output. 1 kW = 3,412 BTU/hour.

Capacity	BTU output	Equipment	Installed range
10 kW	~34,000 BTU	$900–$1,400	$2,200–$3,500
15 kW	~51,000 BTU	$1,200–$1,800	$2,800–$4,200
20 kW	~68,000 BTU	$1,500–$2,400	$3,400–$4,800
25 kW	~85,000 BTU	$1,900–$2,800	$4,000–$5,500

Operating cost reality check

At $0.16/kWh (US average) and a 60 million BTU annual heating load, an electric furnace burns through roughly 17,500 kWh a year, or $2,800 in electricity. The same heating load on a 95% AFUE gas furnace at $1.60/therm is closer to $1,000. The $1,800/year gap dwarfs the install savings within two heating seasons.

When electric does make sense

Mild climate, short heating season

In Florida, Arizona, southern Texas, or southern California, heating is needed only 60 to 100 days a year. Operating cost over a short season can stay reasonable, and the install savings of $2,000+ vs a gas furnace are real.

No gas line access

If running a new gas main is more than $2,500 and you do not want propane delivery, electric becomes practical. But check whether a heat pump is feasible first, almost every climate now has a heat pump that fits.

Backup or supplemental heat

Electric resistance is common as the auxiliary stage in a heat pump system. It only runs on the coldest days when the heat pump cannot keep up. In that role, the operating cost penalty is minor.

Heat pumps beat electric resistance, almost always

A modern heat pump achieves a COP of 2.5 to 3.5, meaning it produces 2.5 to 3.5 BTUs of heat per BTU of electricity consumed. An electric resistance furnace produces exactly 1. The heat pump costs more upfront ($8,000 to $18,000) but cuts operating cost by 60 to 70%. Compare costs side-by-side →

Lifespan advantage

Electric furnaces routinely last 20 to 30 years versus 15 to 20 for gas. No combustion means no heat exchanger to crack, no burners to clean, and no exhaust system to corrode. Maintenance is just blower motor service and the occasional contactor replacement.

If you already have an electric furnace and it is working, the cost-of-ownership case for staying with electric is much weaker than the case for switching to a heat pump on next replacement.

Electric furnace FAQ

How much does an electric furnace cost installed?+

Electric furnace installation costs $2,500 to $5,500 in 2026. The unit itself is $1,400 to $3,000 because there is no combustion system, no heat exchanger, no gas line, and no flue. Labour is $800 to $2,000 because installation is simpler. Operating cost is the catch: $1,200 to $2,500 a year vs $600 to $1,200 for gas.

Why is an electric furnace more expensive to run than gas?+

Electric resistance heat converts kilowatt-hours to BTUs at a 1:1 ratio. Natural gas costs roughly one-third the price of electricity per BTU delivered. The result: an electric furnace runs 2 to 3 times more expensive on the monthly utility bill, even though both are 100% efficient at converting their fuel to heat.

Is a heat pump better than an electric furnace?+

Almost always. A heat pump moves heat instead of generating it, achieving COPs of 2.5 to 3.5 in moderate weather. That means it produces 2.5 to 3.5 BTUs of heat per BTU of electricity. An electric resistance furnace produces 1 BTU per BTU of electricity. If you have decided on electric, a heat pump is usually a better long-term investment.