When Wood Pellets Beat Propane—and When They Don’t
Use local delivered prices and appliance efficiencies to find the pellet break-even price, then factor in installation, electricity, maintenance and labor.
Pellets win when their delivered price per ton falls below the efficiency-adjusted break-even price created by your local propane quote. Propane can win when pellets are expensive, the pellet appliance is less efficient, or installation, electricity, maintenance, storage, and household labor consume the fuel savings.
The defensible comparison uses the same amount of useful heat for both fuels—not dollars per ton versus dollars per gallon.
Short answer: pellets can cost less, but local prices decide
Published benchmarks show that pellets can provide cheaper useful heat under reasonable assumptions, but they cannot settle the question for a particular household. Appliance efficiency, winter severity, operating schedule, and whether a pellet appliance replaces all or only part of the propane load also change the result.
Here are the principal 2026 reference points:
| Fuel | Figure | Geography and date | Limitation |
|---|---|---|---|
| Propane | $2.674 per gallon | U.S., March 30, 2026 | End-of-season observation, not a calendar-year average |
| Propane | $3.766 per gallon | New England, March 30, 2026 | Regional average; local delivered quotes vary |
| Propane | $3.523 per gallon | Maine, March 30, 2026 | State average, not an individual supplier quote |
| Propane | $4.116 per gallon | Connecticut, March 30, 2026 | State average, not an individual supplier quote |
| Densified biomass | $261.19 per ton | U.S. domestic sales, June 2026 | Mixed products and retail/wholesale sales; not a typical household quote |
The propane rows come from EIA’s residential price data for March 30, 2026. EIA collects these prices weekly from October through March, so they are neither full-year 2026 averages nor forecasts for winter 2026–27. EIA Heating Oil and Propane Update
The biomass figure comes from EIA’s June 2026 Densified Biomass Fuel Report. Domestic sales are primarily wood pellets sold into heating markets, but the $261.19 average includes multiple densified-biomass products and both retail and wholesale transactions. It measures sales revenue rather than the typical delivered price of bagged pellets at a home. EIA Densified Biomass Fuel Report
Because the propane and biomass observations come from different months and different data programs, combining them creates an illustration—not a definitive, same-date national comparison.
For context, EIA’s final estimate put average household propane expenditure at $1,286 from November 2025 through March 2026. That figure reflects weather, consumption, regional housing characteristics, and fuel prices. It cannot be compared directly with a pellet price per ton because it does not represent a standardized quantity of delivered heat. EIA Winter Fuels Outlook 2025–26
Compare cost per useful MMBtu, not dollars per ton versus dollars per gallon
A ton and a gallon contain different amounts of energy. The useful comparison is cost per useful million British thermal units, or cost per useful MMBtu.
Useful heat is the fuel energy that reaches the home after appliance losses. If a fuel contains 10 MMBtu and the appliance operates at 75% efficiency, the simplified calculation credits it with 7.5 useful MMBtu.
Use these worksheet inputs:
- Propane: approximately 0.0915 MMBtu per gallon, or 91,500 BTU. A Pennsylvania hearth retailer uses that energy-content figure in its propane calculations. The Stove Shop’s 2026 fuel-cost guide
- Pellets: an illustrative 16 MMBtu per ton, equivalent to 8,000 BTU per pound.
The pellet figure is a calculation input, not a guarantee. Heat content and quality vary among products. Energy Kinetics uses approximately 8,000 BTU per pound for dry pellets and a rounded 92,000 BTU per gallon for propane in its nominal fuel-conversion guide, while noting that simple conversion factors do not account for the performance of specific appliances. Energy Kinetics fuel-conversion assumptions
Calculate each fuel’s cost as follows.
Pellet cost per useful MMBtu
Pellet price per ton ÷
(16 MMBtu per ton × pellet-appliance efficiency)
Propane cost per useful MMBtu
Propane price per gallon ÷
(0.0915 MMBtu per gallon × propane-appliance efficiency)
Enter efficiency as a decimal:
- 75% becomes
0.75 - 90% becomes
0.90
Do not give every pellet stove the same efficiency. Check the exact model. The EPA Certified Wood Heater Database can be searched for available model-specific efficiency, fuel type, certification, emissions, and carbon-monoxide information. EPA certification alone does not show that an appliance will be economical; the database simply provides better equipment inputs.
For a propane furnace, boiler, or fireplace, use the applicable rated efficiency for that appliance and operating mode. Do not transfer the efficiency of one model or test method to another system merely because both appliances burn propane.
Worked 2026 example and pellet break-even prices
Consider this deliberately simplified fuel-only comparison:
- Pellet price: $261.19 per ton
- Propane price: $2.674 per gallon
- Pellet-appliance efficiency: 75%
- Propane-appliance efficiency: 90%
- Pellet heat content: 16 MMBtu per ton
- Propane heat content: 0.0915 MMBtu per gallon
The fuel prices are the dated EIA benchmarks cited above. The efficiencies are illustrative assumptions, not typical values or specifications for any particular appliance. (EIA Heating Oil and Propane Update, March 30, 2026; EIA Densified Biomass Fuel Report, June 2026.)
Pellet fuel cost
$261.19 ÷ (16 × 0.75)
= $261.19 ÷ 12
= approximately $21.77 per useful MMBtu
Propane fuel cost
$2.674 ÷ (0.0915 × 0.90)
= $2.674 ÷ 0.08235
= approximately $32.47 per useful MMBtu
Pellets are cheaper under these inputs. That result is still not a household retail verdict: the pellet input is mixed domestic sales revenue, the two fuel prices were observed in different months, and neither figure captures every local fee.
The quick nominal-energy shortcut
At 16 MMBtu per ton for pellets and 0.0915 MMBtu per gallon for propane:
16 ÷ 0.0915 = approximately 174.9
That produces this shortcut:
Nominal equivalent pellet price per ton
≈ propane price per gallon × 174.9
At $2.674 per gallon for propane, nominal energy equivalence is approximately $468 per ton. This is derived arithmetic from the cited energy-content and EIA price inputs. It ignores appliance efficiency, so it is not the useful-heat break-even price unless both appliances have the same efficiency.
The efficiency-adjusted break-even formula
Use this formula instead:
Pellet break-even price per ton
= propane price per gallon
× 174.9
× pellet efficiency
÷ propane efficiency
Using 75% pellet efficiency and 90% propane efficiency:
| Propane benchmark | Calculation | Pellet break-even price |
|---|---|---|
| U.S.: $2.674 per gallon | $2.674 × 174.9 × 0.75 ÷ 0.90 | About $390 per ton |
| New England: $3.766 per gallon | $3.766 × 174.9 × 0.75 ÷ 0.90 | About $549 per ton |
These thresholds are derived from EIA’s March 30 propane prices and the stated heat-content and efficiency assumptions.
Interpret them plainly:
- A delivered pellet quote below the threshold favors pellets on fuel cost alone.
- A delivered pellet quote above the threshold favors propane on fuel cost alone.
- A quote close to the threshold means electricity, maintenance, delivery fees, labor, and switching costs are likely to decide the outcome.
Recalculate whenever fuel prices or the appliance pair changes. A break-even price calculated for one pellet stove and propane furnace should not automatically be applied to different equipment.
Estimate a season using the same heating load
A seasonal comparison must begin with one common heating requirement. Otherwise, you may be comparing a pellet stove heating an occupied zone all day with a propane fireplace used for only a few evening hours.
Start with this worksheet:
| Input | Pellet system | Propane system |
|---|---|---|
| Delivered fuel price | $___ per ton | $___ per gallon |
| Appliance efficiency | ___ as a decimal | ___ as a decimal |
| Annual useful-heat requirement | ___ MMBtu | Same ___ MMBtu |
Then calculate the fuel quantities.
Pellet tons needed
Annual useful MMBtu ÷
(16 × pellet efficiency)
Propane gallons needed
Annual useful MMBtu ÷
(0.0915 × propane efficiency)
Calculate fuel spending:
Pellet fuel cost
= pellet tons needed × delivered pellet price per ton
Propane fuel cost
= propane gallons needed × delivered propane price per gallon
Do not simply compare three tons of pellets with 500 gallons of propane. First calculate how much useful heat each quantity would deliver through the appliances being considered.
Start with actual propane consumption if you have it
An existing propane user can work backward from household records:
- Add the propane gallons purchased during a representative year.
- Separate cooking, water heating, clothes drying, generator use, and other non-space-heating consumption where possible.
- Estimate useful space heat:
Heating gallons
× 0.0915
× current propane-system efficiency
Useful heating MMBtu ÷
(16 × proposed pellet-appliance efficiency)
This method is usually more relevant than a national household expenditure because it begins with the home’s actual consumption. Adjust it if indoor temperatures, occupied areas, or operating schedules would change after installing the pellet appliance.
Run at least three cases:
- Warm winter
- Typical winter
- Cold winter
EIA’s original winter 2025–26 propane scenarios ranged from $1,116 in a 10%-warmer case to $1,355 in a 10%-colder case. Those scenarios illustrate sensitivity to weather; they are not promised household bills. (EIA Winter Fuels Outlook 2025–26.)
Keep different heating roles separate:
| Heating role | Heat required | Pellet share | Propane share |
|---|---|---|---|
| Whole-home primary heat | ___ MMBtu | ___% | ___% |
| Continuous occupied-zone heat | ___ MMBtu | ___% | ___% |
| Occasional fireplace use | ___ MMBtu | ___% | ___% |
Operating-cost claims can appear contradictory when schedules differ. The Stove Shop’s Pennsylvania guide reports a lower hourly pellet cost but a higher seasonal pellet total because its examples assume pellet appliances operate roughly 12–18 hours per day while propane fireplaces run about 3–6 hours. Those totals do not represent equal heat delivered. (The Stove Shop, 2026 Fireplace Fuel Cost Guide.)
Add the costs that fuel-only calculators leave out
Cost per useful MMBtu answers one question: which fuel costs less to produce a given quantity of heat? It does not establish which system will cost less to buy, install, and own.
Build a second comparison:
| Cost category | Pellet system | Propane system |
|---|---|---|
| Appliance and installation | Stove or furnace, venting, hearth work, permits | Furnace, boiler or fireplace, venting, connections |
| Recurring electricity | Auger, igniter, controls, blowers | Controls, pumps, fans, other system loads |
| Maintenance and repairs | Cleaning, annual service, replacement parts | Service and repairs for the local system |
| Delivery | Pellet delivery, pallet or bag charges | Delivery fees, minimums, taxes, surcharges |
| Storage or tank | Dry pellet storage | Tank rental, ownership, inspection |
| Household labor | Moving bags, loading, cleaning, ash handling | Usually less daily fuel handling |
| Backup heat | Heat for distant rooms or unattended periods | Fuel retained for backup or other appliances |
| Outage planning | Battery, generator, alternate heat | System-specific power and delivery planning |
Pellet equipment commonly uses electricity for its auger, igniter, controls, and blowers. Pellets must remain dry, and bagged fuel requires repeated moving and loading. A conventional 40-pound bag is manageable for some households and a significant burden for others.
Include burn-pot and ash cleaning, annual teardown or professional service, and eventual replacement parts. If continuous heat during outages matters, price suitable backup power or another heat source rather than assuming the stove will run without electricity.
Propane quotes require their own fine print. Ask whether a quoted price includes delivery, taxes, minimum-purchase requirements, tank rental, tank ownership expenses, or other surcharges. These are supplier- and system-specific costs, not expenses that can be assigned a credible national average.
Most importantly, separate operating economics from switching economics.
A pellet stove can have the lower fuel cost and still be the more expensive decision over the owner’s expected time in the house. When a functioning propane system is already installed, prospective pellet savings must first repay the stove, venting, electrical work, installation, permits, financing, and any backup-power equipment.
Also model partial displacement. A pellet stove may heat the occupied area while propane continues serving distant bedrooms, domestic hot water, backup heat, or other appliances. If pellets replace 60% of the space-heating load, apply pellet savings only to that displaced portion—not to the household’s entire propane bill.
In Pellet Finder’s account of twelve winters, one homeowner reports that pellets still cost less than the propane system replaced after considering fuel, parts, and maintenance effort. The account provides no location, fuel prices, annual consumption, or annual totals, so it is not representative evidence. Its practical value is the reminder that pellet savings come with loading, cleaning, dry storage, electricity dependence, and occasional repairs.
The fit test is straightforward:
- Pellets tend to fit households willing and able to store fuel, lift bags, clean the appliance, manage ash, and plan for electrical outages.
- Propane tends to fit households prioritizing convenience and lower day-to-day fuel handling, even when propane costs more per useful MMBtu.
What the available 2026 data cannot predict
Data-status note
- Observed prices: The March 30 propane averages and June biomass sales average are historical observations from different markets and months.
- Scenarios: Warm- and cold-winter expenditure cases illustrate sensitivity to weather; they are not actual bills.
- Forecasts: Energy-market forecasts describe possible future conditions and should not be presented as observed pellet or propane prices.
March 30 was EIA’s final residential propane observation for the 2025–26 heating season. Because weekly residential propane prices are collected only from October through March, that observation is not a calendar-year average or a forecast for winter 2026–27. Replace it with a current delivered quote when making a purchase decision.
Heating-oil data cannot fill that gap. EIA’s September petroleum forecast discusses low distillate inventories and possible pressure on Northeastern heating-oil prices, but it provides neither pellet prices nor a residential propane forecast that settles this comparison. EIA Short-Term Energy Outlook: Petroleum Products
Similarly, a Northeast tracker updated in September 2026 discusses heating oil and characterizes its estimates as provisional until EIA weekly retail reporting resumes. Its figures cannot establish whether pellets or propane will be cheaper. Northeast Heating Oil Forecast Winter 2026–27
The Pellet Fuels Institute calculator provides another secondary illustration. It displays $19.15 per useful MMBtu for pellets and $41.13 for propane, but the page does not disclose the fuel-price inputs, appliance efficiencies, or a clear date for those particular outputs. Treat the figures as an example of the method, not verified 2026 averages. Its useful feature is the ability to substitute local prices and efficiencies. Pellet Fuels Institute fuel comparison tool
For a decision you can act on:
- Obtain current delivered quotes for pellets and propane, including fees, minimums, and surcharges.
- Verify the efficiencies of the exact pellet and propane appliances.
- Normalize both fuels to the same useful heat using the formulas above.
- Add recurring nonfuel and switching costs, including electricity, maintenance, storage, tank expenses, labor, installation, and backup heat.
Under the illustrative 75% pellet and 90% propane assumptions, pellets beat the March 2026 national propane benchmark below roughly $390 per ton and the New England benchmark below roughly $549 per ton on fuel cost alone. Those thresholds are derived from EIA’s dated propane observations and the calculation assumptions shown above. Only current local quotes, actual equipment efficiencies, and the amount of heat each system will really supply can settle the decision.