Fuel Choice Matrix
Be Informed
Use this chart to learn more about different fuel types—and make the best choice for you.
| BENEFITS |
Natural and available. Wood can supplement furnace usage and reduce heating costs up to 30%. |
Clean-burning and consistent. Pellets are affordable, available and renewable. |
Coal can burn up to 24 hours without refueling. And, it costs about 30% less than purchased wood. |
| FIRE CHARACTERISTICS |
Expect robust, steady fires. Harman wood products deliver even heat, long burns and high-efficiency. |
Active and robust. A small fire can burn an inch high, while a powerful 10-inch blaze is bright and intense. |
Coal fires are strong and steady. They're generally more subdued, providing clean blue flames and a stunning glow. |
| Paper, kindling and fire-starting logs are effective. |
Automatic thermostats and temperature controls do the work for you—just keep your hopper filled. |
Coal fires start slowly. Begin with paper and dry kindling, then add coal in batches. |
| Adding more fuel will immediately increase convective heat. Radiant heat will remain steady. |
Most of the heat is convectional—blown through a heat exchanger and out into the home. |
Coal is generally hotter than wood and has a longer, more sustainable burn for impressive radiant heat. |
| Dry storage is important. A cord of wood is stacked 4'x4'x8'. On average, a 1,500 sq. ft. home will require 2-4 cords per season. |
Pellets are normally available in 40 lb. bags. A 1,500 sq. ft. home will use 2-4 tons per season, on average. |
Dry storage is important. And, a 4'x4'x8' stack of coal should supply the average home for one season. |