In the North Georgia mountains, propane at $3.20 a gallon through an 80% furnace costs about $43.71 per million BTU delivered; a heat pump rated HSPF2 8.5 on $0.13/kWh electricity costs about $15.29 for the same heat. Your own figure depends on your gallons, your EMC rate and how often backup heat runs. Design temperature in Jasper runs 13-18°F depending on elevation.
The comparison almost everyone gets wrong
Propane is sold by the gallon and electricity by the kilowatt-hour, so a direct price comparison is meaningless. The only fair unit is cost per million BTU actually delivered into the house — which means you have to account for what each system wastes.
A propane furnace at 80% AFUE throws roughly one fifth of every gallon out the flue. A heat pump does the opposite: it moves more heat than the electricity it consumes, because it is relocating heat rather than creating it. That is why the arithmetic surprises people.
| Step | Propane furnace (80% AFUE) | Cold-climate heat pump |
|---|---|---|
| Energy in | 1 gallon = 91,502 BTU | 1 kWh = 3,412 BTU |
| Delivered to the house | 73,202 BTU | ~8,500 BTU (HSPF2 8.5) |
| Units to make 1 million BTU | 13.7 gallons | 118 kWh |
| Cost at $3.20/gal · $0.13/kWh | $43.72 | $15.29 |

Why this is a different calculation above 1,800 feet
Most heat pump advice on the internet is written for Atlanta. Pickens County is not Atlanta. Jasper sits around 1,500 feet, Bent Tree and much of Big Canoe run 1,800 to 2,600, and the Burnt Mountain shoulder goes past 3,000. Design temperature drops roughly 3–5°F against the metro baseline, and ridge exposure adds wind-driven infiltration on top of it.
That changes the equipment specification, not the conclusion. A single-stage builder-grade heat pump derates badly as outdoor temperature falls and hands the load to resistance strip heat, which is the most expensive heat in the house. A properly selected cold-climate inverter unit holds usable capacity into the teens and keeps the strips off.
Getting that selection right is the whole job. Getting it wrong is why some of your neighbours will tell you heat pumps do not work up here.
What a conversion actually involves
A propane conversion is rarely a like-for-like box swap, and any quote that treats it as one is hiding scope. The work usually spans three trades:
- Load calculation. A room-by-room Manual J against your real envelope, elevation and exposure — not a rule-of-thumb square-footage guess.
- Electrical capacity. Many mountain homes on 100A or 150A service cannot carry a heat pump plus emergency strip heat. The load calc tells us before we sell you equipment, not after.
- Air-side work. Duct static, return sizing and line-set routing. Heat pumps move more air at lower temperature than a furnace does, so undersized returns become audible immediately.
- Propane decommissioning. Terminating the lease, removing or abandoning the tank to code, and capping the gas piping.
Want this run against your own delivery ticket and EMC bill? It takes one call. Free, no obligation.
Call (470) 208-3151Where to go from here
The five sections of this site each solve a different part of the decision. If you are early, start with the cost math. If you have already decided and are working out feasibility, start with electrical.
- The full BTU and fuel-inflation analysis — if you want to check our arithmetic.
- Equipment and mountain engineering — what actually holds capacity at design temp.
- Getting the tank and the lease off your property.
- Whether your electrical service can carry it.
- Community-specific logistics for Big Canoe, Bent Tree, Marble Hill and Talking Rock.
Run your own numbers
Delivered-BTU math, not a marketing estimate. Change any input and the result updates.
Example only: a house burning 850 gallons at $3.20/gal through an 80% furnace, against electricity at $0.13/kWh. Backup strip heat in a hard cold snap is not modeled. Enter your own numbers above.
- Delivered heat needed
- 62.2 million BTU
- Propane cost per delivered MMBTU
- $43.71
- Heat pump cost per delivered MMBTU
- $15.29
- Electricity used
- 7,320 kWh
- This winter on propane
- $2,720
- This winter on a heat pump
- $952
Worked example at typical North Georgia prices. Change any input above and this recalculates for your house. Estimate only, not a guarantee.
Free and no obligation. You are connected to one independent, licensed, insured Georgia contractor serving your area — never a call center, never a list.
Common questions about converting from propane in North Georgia
Do heat pumps actually work in the North Georgia mountains?
Can I keep my propane tank as a backup?
How long does a conversion take?
Where these numbers come from
- U.S. Energy Information Administration — energy conversion calculators — heat content of a gallon of propane
- EIA weekly heating oil and propane prices — the $/gallon series behind the worked examples
- AHRI Directory of Certified Product Performance — verify any quoted HSPF2, SEER2 and capacity rating
- NOAA U.S. Climate Normals — station data behind the 13-18°F design temperature range
Every contractor in this network holds a current Georgia Conditioned Air or Electrical Contractor license. You can confirm any license yourself before you sign anything — Georgia Secretary of State license lookup.
Get a conversion figure for your address
Bring your last delivery ticket and your EMC bill. Those two numbers are all we need to tell you whether this is worth doing on your house.
Free and no obligation. You are connected to one independent, licensed, insured Georgia contractor serving your area — never a call center, never a list.
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