Choose a pellet stove for cleaner, more automatic heat if you have reliable power. Choose a wood stove if you need heat during outages or have cheap firewood. EPA says “most pellet stoves need electricity to operate,” unlike wood stoves. It also calls pellet stoves “typically among the cleanest wood-burning heating appliances available today,” with “high overall efficiency.” A wood stove runs without power but has to be loaded by hand, and how cleanly it burns depends on dry, seasoned wood.
| Wood stove | Pellet stove | |
|---|---|---|
| Fuel | Cordwood; EPA stresses “dry, seasoned wood” | Pellets of ground, dried wood and other biomass |
| Feeding | Loaded by hand | Hopper and powered feed on most models |
| Electricity | Not needed to burn | Most models need it; check the model’s outage and shutdown behavior |
| Efficiency (EPA) | Non-catalytic models average about 71% (range 60–80%); catalytic about 78% (63–84%) | “High overall efficiency” |
| Emission limit for new units (EPA 2020 standard) | 2.0 grams of particulate per hour, or 2.5 g/h when tested with cordwood | Pellet stoves fall under the same rule |
The 2020 limits apply to new stoves only. EPA’s rule does not affect stoves already in use, so an older stove may not meet them. To check a specific model, look for the EPA certification label on the back and look it up in EPA’s certified wood heater database.
Questions that decide it
- How often does your power go out, and for how long? If you need heat through outages, a wood stove works without electricity. For a pellet stove, check whether the maker approves a battery or generator backup and what the stove does when power drops mid-burn.
- What fuel can you get and store? Wood needs space to season and dry under cover. Pellets come in bags that must be kept dry. Price both locally for a full heating season.
- How much tending will you do? A wood stove needs regular loading and air adjustment. A pellet stove runs from a hopper and thermostat but has more parts that need cleaning: the burn pot, heat exchanger, fans and sensors.
Installation and upkeep for either
- Installation: EPA “strongly recommends” a certified technician install the stove. Clearances, floor protection, the chimney or vent, permits and insurance requirements all depend on the exact model. Tell your insurer before you install.
- Sizing: EPA advises talking with an experienced hearth retailer and bringing a floor plan of your home.
- Annual service: EPA and fire officials recommend having the stove, chimney and vents professionally inspected and cleaned every year.
- Fuel limits: burn only fuel the manual approves. EPA says not to burn wax-and-sawdust logs in a wood stove or insert.
- Alarms: install smoke and carbon monoxide alarms. Stop using the stove if you see smoke spillage, damaged venting or a CO alarm.
EPA’s Burn Wise program ended in October 2025. Its pages remain online as a historical record.