How much does it cost to heat and cool a 2,000 sq ft home in Washington?

In Washington (14¢/kWh via Puget Sound Energy / Seattle City Light), a 2,000 sq ft home averages $573/year ($48/month) with a high-efficiency heat pump, $651/year with a natural gas furnace and central AC, and $1,747/year with electric baseboards.

Are heat pumps cheaper to run than gas furnaces in Washington?

At Washington's natural gas rate of $1.38/therm, the economic break-even electricity price for a COP 3.1 heat pump is 15.9¢/kWh. Comparing this against Washington's residential electricity rate of 14¢/kWh determines annual operating savings.

Washington Heating & Cooling Cost Calculator (2026)

2,000 Sq Ft Heat Pump Bill

$48/mo

WA Electricity / Gas Rate

14¢ / $1.38

15-Yr Savings vs Baseboard

+$14,010

Washington Annual Heating & Cooling Bills by Home Size

In Washington, a 2,000 sq ft home averages $573/year ($48/mo) using a cold-climate heat pump ($550/yr winter heating + $22/yr summer cooling), compared to $651/year with a natural gas furnace and $1,747/year with electric baseboards.

Home Size	Heat Pump (COP 3.1)	Gas Furnace + AC	Baseboard + Window AC	15-Yr Heat Pump Savings
1,000 Sq Ft	$286/yr ($24/mo)	$325/yr ($27/mo)	$873/yr ($73/mo)	+$5,205
1,500 Sq Ft	$430/yr ($36/mo)	$488/yr ($41/mo)	$1,310/yr ($109/mo)	+$9,600
2,000 Sq Ft	$573/yr ($48/mo)	$651/yr ($54/mo)	$1,747/yr ($146/mo)	+$14,010
2,500 Sq Ft	$716/yr ($60/mo)	$813/yr ($68/mo)	$2,183/yr ($182/mo)	+$18,405
3,000 Sq Ft	$859/yr ($72/mo)	$976/yr ($81/mo)	$2,620/yr ($218/mo)	+$22,815
3,500 Sq Ft	$1,002/yr ($84/mo)	$1,139/yr ($95/mo)	$3,056/yr ($255/mo)	+$27,210

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Verify 2026 Federal 25C Tax Credit & Puget Sound Energy / Seattle City Light rebate eligibility and compare turnkey contractor pricing for a 3.0-Ton system (2,000 sq ft).

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