HeatGreen
Fireplace and Stove Ratings
The following fireplace and stove types are considered green by the HeatGreen Council and should be chosen by those desiring the most environmentally responsible residential heating. Central furnaces using wood biomass are also included. Additionally, the fireplace and stove types are separated into four groups. The groups are designated by flames with four flames being the most environmentally beneficial. The green difference between any appliances listed next to each other is not significant, but the difference between a three flame and a one flame appliance is somewhat significant. Other non-listed fireplaces and stove types will have very significant value to consumers because of their special design features but they are not considered green at this time. Please refer to information in the Rating System section for further information about how these product types were rated.
The following hearth appliance types are given a Four Flame rating:
| 1. pellet stove or insert, Automatic Ignition, modulating thermostat, Wood Pellet |  |
| ASTM E 1509 |
| 2. pellet stove or insert, Automatic Ignition, Standard thermostat, Wood Pellet | |
| ASTM E 1509 |
| 3. Gas Fireplace - Heater Rated, Electronic Ignition, Natural Gas | |
| ANSI Z21.88-205 - CSA 2.33-2005 |
| 4. Gas Stove or insert - heater rated, electronic ignition, Natural Gas | |
| ANSI Z21.88-2005 - CSA 2.33-2005 |
| 5. Wood Stove or Insert, Catalytic and Non Catalytic, Cord Wood, Certified Clean Burning | |
| UL 1482 - EPA NSPS |
| 6. Wood Fireplace, Cord Wood, Certified Clean Burning | |
| UL1482 - EPA NSPS and UL127 |
| 7. Masonry Heater, Clean Burn Technology, Cordwood | |
The following hearth appliance types are given a Three Flame rating:
| 1. Gas Fireplace - Heater Rated, Electronic Ignition, Propane |  |
| ANSI Z21.88-2005 - CSA 2.33-2005 |
| 2. Gas Stove or Insert - Heater Rated, Electronic Ignition, Propane | |
| ANSI Z21.88-2005 - CSA 2.33-20005 |
| 3. Pellet Stove or Insert, Manual Ignition, Wood Pellet | |
| ASTM E 1509 |
The following hearth appliance types are given a Two Flame rating:
| 1. Gas Fireplace - Decorative Electronic Ignition, Natural Gas |  |
| ANSI Z2150-2003 - CSA 2.22-2003 |
| 2. Gas Fireplace - Decorative Electronic Ignition, Propane | |
| ANSI Z2150-2003 - CSA 2.22-2003 |
The following hearth appliance types are given a One Flame rating:
| 1. Wood Fireplace, "Low Mass", Cordwood |  |
| ASTM E2558-07e1 |