Electricity has often been the best way to go because it is available, a clean fuel and prices stay pretty constant. 

      Timberline has experience installing most heating sources including heat pumps, geo-thermal systems with vertical or horizontal runs, forced air systems, radiant heating and with solar and wind power sources.

     If you want to look at real flames in the fireplace Natural Gas and Propane are good fuels to accomplish this. Of course, there is the option of a log fireplace.  The heat is more difficult to control, and the fuel source, maintenance, and clean up are hard work!