How much does a 3-Ton (36,000 BTU) heat pump cost to run per month in Washington?

In Washington (14¢/kWh), a 3-Ton (36,000 BTU) cold-climate heat pump serving a 1,650–2,100 Sq Ft home consumes approximately 4,093 kWh per year, costing $573/year or $48/month on average.

3-Ton (36,000 BTU) Heat Pump & AC Monthly Electricity Cost in Washington (2026)

3-Ton (36,000 BTU) Annual kWh Consumption & Operating Cost

Equipment Output Capacity:3-Ton (36,000 BTU)/hr

Typical Home Coverage Area:1,650–2,100 Sq Ft

Estimated Annual Electricity Usage (COP 3.1 / 18 SEER2):4,093 kWh/yr

Annual Heating & Cooling Utility Bill in Washington:$573/yr ($48/mo)

Average Net Installed Equipment Cost (2026):$6,800

15-Year Total Cost of Ownership (Install + 15 Yrs Bills):$15,395

Model This 3-Ton Unit in Washington → Verify Exact Room/House BTU Load →

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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-Ton system (2,000 sq ft).

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Compare Other HVAC Tonnage Sizes in Washington

1.5-Ton (18,000 BTU)2-Ton (24,000 BTU)2.5-Ton (30,000 BTU)3-Ton (36,000 BTU)4-Ton (48,000 BTU)5-Ton (60,000 BTU)