Kerosene, heating oil, or propane — a burner sends part of every gallon out the flue. Here's what changes the day a cold-climate heat pump takes over.
AFUE — Annual Fuel Utilization Efficiency — is the share of a fuel's energy your furnace turns into usable heat over a season. An 80% AFUE furnace sends roughly one of every five gallons you pay for out the flue as waste heat and combustion loss. After many Maine winters, real-world performance often drifts below the original rating.
| Measure | 80% AFUE fuel furnace | Cold-climate heat pump |
|---|---|---|
| How it makes heat | Burns fuel on-site | Moves existing heat from outdoor air |
| Efficiency | ~80% of fuel, minus flue losses | 300%+ (COP ~3, up to 30 BTU/watt) |
| Cold-weather rating | n/a | HSPF2-rated for Maine winters |
| Air conditioning | None | Built in |
| Fuel deliveries | Ongoing, price-volatile | None — runs on electricity |
| Indoor air | Combustion byproducts, fumes | No on-site combustion |
| Rebates available | None | Up to $9,000 (+ HEAR for mobile homes) |
COP = coefficient of performance. HSPF2 = current cold-climate heating efficiency standard. Exact BTU/watt and HSPF2 vary by model and outdoor temperature.
Moving heat instead of burning fuel means fewer units of energy for the same warmth — and no more riding the winter oil-market rollercoaster.
The same unit that heats you in January cools and dehumidifies in July. A fuel furnace can't.
No flame, no fuel smell, no combustion byproducts inside. Cold-climate heat pumps run quietly on the wall.
Manufactured homes are a priority for Maine's rebate programs — the mobile-home category reaches the deepest stack of all.
Get a free, no-obligation estimate from a registered Maine installer and find out exactly which rebates your manufactured home qualifies for.
Get a quote from BRF Services Maine Energy Services