You want the most economical source of heat you can get. You believe in preserving mother earth by using renewable, carbon-nuetral recources.
If you own an older (pre 1994) woodstove or insert, please consider replacing it with a new EPA certified model. You will get more heat and burn significantly less wood. Your chimney will stay cleaner, you will produce less ash, and you will be helping the environment! For more information go to www.epa.gov/burnwise