Heat Pump vs. Propane Furnace in Washington (2026)

15-to-25 Year Equipment Lifespan & Utility Payback at 14¢/kWh (Puget Sound Energy / Seattle City Light)

Head-to-Head Lifespan & Operating Cost Comparison (2,000 Sq Ft in Washington)

Option A: Cold-Climate Heat Pump (15-Yr Lifespan)Install: $6,800 | Lifespan: 15 Yrs
Option A Annual & Monthly Utility Bill:$573/yr ($48/mo)
Option A 15-Year Total Cost (Install + 15 Yrs Bills):$15,395
Option B: Propane Furnace + Central AC (18-Yr Lifespan)Install: $7,200 | Lifespan: 18 Yrs
Option B Annual & Monthly Utility Bill:$1,415/yr ($118/mo)
Option B 15-Year Total Cost (Install + 15 Yrs Bills):$28,425
Washington Tariff & Break-Even Threshold:14¢/kWh Elec | $1.38/therm Gas (Break-Even: 15.9¢/kWh)
15-Year Net Lifespan Verdict in Washington:Cold-Climate Heat Pump saves $13,030 over 15 years
Interactive Heat Pump vs. Propane Furnace Graph in Washington →
🛠️ Save 45% on Install

DIY Pre-Charged Ductless Mini-Split Kits

Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 2,000 sq ft Washington home.

Size DIY Mini-Split Kit →
☀️ Offset 14¢/kWh

Washington Solar + Heat Pump Net-Zero Calculator

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

Model Solar + Heat Pump ROI →

Other HVAC System Matchups in Washington