Head-to-Head Lifespan & Operating Cost Comparison (2,000 Sq Ft in Maine)
Option A: Geothermal Ground-Source (25-Yr Unit / 50-Yr Loop)Install: $18,500 | Lifespan: 25 Yrs
Option A Annual & Monthly Utility Bill:$1,418/yr ($118/mo)
Option A 15-Year Total Cost (Install + 15 Yrs Bills):$39,770
Option B: Air-Source Heat Pump (15-Yr Lifespan)Install: $6,800 | Lifespan: 15 Yrs
Option B Annual & Monthly Utility Bill:$1,921/yr ($160/mo)
Option B 15-Year Total Cost (Install + 15 Yrs Bills):$35,615
Maine Tariff & Break-Even Threshold:31¢/kWh Elec | $1.95/therm Gas (Break-Even: 22.4¢/kWh)
15-Year Net Lifespan Verdict in Maine:Air-Source Heat Pump saves $4,155 over 15 years
💰 Up to $2,600 Rebate
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Compare 3 Local Maine HVAC Installer Quotes
Verify 2026 Federal 25C Tax Credit & Central Maine Power (CMP) / Versant rebate eligibility and compare turnkey contractor pricing for a 3.0-Ton system (2,000 sq ft).
🛠️ Save 45% on Install
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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 2,000 sq ft Maine home.
☀️ Offset 31¢/kWh
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Maine Solar + Heat Pump Net-Zero Calculator
See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Maine.
Other HVAC System Matchups in Maine
Heat Pump vs. Natural Gas FurnaceDuctless Mini-Split vs. Electric BaseboardHeat Pump vs. Heating Oil Furnace20-SEER2 Inverter AC vs. 14-SEER2 Standard ACGeothermal (COP 4.2) vs. Air-Source Heat PumpHeat Pump vs. Propane FurnaceHeat Pump vs. Central Electric FurnaceDual-Fuel Hybrid System vs. All-Electric Heat Pump