The Quadra-Fire Trekker pellet stove with efficient energ (E2) technology is the most powerful and efficient pellet stove ever designed by Quadra-Fire. E2 technology helps achieve 83.2% efficiency, saving money by burning less fuel. The standard 7 day programmable thermostat, 80lb hopper and easy-clean cast iron firepot ensure this pellet stove is easy to operate. These efficienct pellet-burning stoves are the only stove available with cast iron construction on all major components, proving it’s built to last. Save 30% with the Biomass Tax Credit.