How much does a 1.5-Ton (18,000 BTU) heat pump cost to run per month in Idaho?

In Idaho (12.8¢/kWh), a 1.5-Ton (18,000 BTU) cold-climate heat pump serving a 700–1,000 Sq Ft home consumes approximately 2,406 kWh per year, costing $308/year or $26/month on average.

1.5-Ton (18,000 BTU) Heat Pump & AC Monthly Electricity Cost in Idaho (2026)

1.5-Ton (18,000 BTU) Annual kWh Consumption & Operating Cost

Equipment Output Capacity:1.5-Ton (18,000 BTU)/hr

Typical Home Coverage Area:700–1,000 Sq Ft

Estimated Annual Electricity Usage (COP 3.1 / 18 SEER2):2,406 kWh/yr

Annual Heating & Cooling Utility Bill in Idaho:$308/yr ($26/mo)

Average Net Installed Equipment Cost (2026):$4,600

15-Year Total Cost of Ownership (Install + 15 Yrs Bills):$9,220

Model This 1.5-Ton Unit in Idaho → Verify Exact Room/House BTU Load →

💰 Up to $2,600 Rebate

Compare 3 Local Idaho HVAC Installer Quotes

Verify 2026 Federal 25C Tax Credit & Idaho Power rebate eligibility and compare turnkey contractor pricing for a 1.5-Ton system (900 sq ft).

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DIY Pre-Charged Ductless Mini-Split Kits

Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 900 sq ft Idaho home.

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☀️ Offset 12.8¢/kWh

Idaho Solar + Heat Pump Net-Zero Calculator

See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Idaho.

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Compare Other HVAC Tonnage Sizes in Idaho

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)