Drolet is proud to present the heatmax ii, a completely re-engineered high efficiency wood furnace that meets the new epa (csa b415.1-10) clean-air standards. This enhanced furnace will provide considerable energy savings over a conventional wood furnace, using up to 30% less wood for the same amount of heat. The heatmax ii is equipped with an adjustable rectangular hot air plenum that can accommodate 6 to 10, 6-inch diameter heating ducts. This adjustable plenum provides greater flexibility for an easier installation. Another key feature is an electronic probe, which measures the temperature in the plenum and varies the blower speed accordingly, assuring maximum comfort.Based on delivered heat output This appliance is officially tested and certified by an independent agency Values are as measured per csa b415.1-10, except for the recommended heating area, firebox volume, maximum burn time and maximum input capacity Performances based on a fuel load prescribed by the standard at 10 lb ft³ and with a moisture content between 18% and 28% Input value at 10 lb ft³ fuel loading density and dry energy value of 8,600 btu lb Radiated and delivered heat together at 10 lb ft³ fuel loading density over one total burn cycle Efficiency based on radiated and delivered heat when allowing cycling from high to low burn to simulate thermostat demand Higher heating value of the fuel Lower heating value of the fuel Remotely provided to other rooms through ducting at 10 lb ft³ fuel loading density over one total burn cycle Efficiency based on delivered heat when allowing cycling from high to low burn to simulate thermostat demand Optimum overall efficiency at a specific burn rate (lhv) Carbon monoxyde. Based on overall heat output at 10 lb ft³ fuel loading density Unless stated otherwise, measures were taken directly at the main power source and include all electrical components present in the appliance Limited lifetime warrantyAir Return Plenum Height: 22 Air Return Plenum Width: 14-1 2 Approved for a Mobile Home Installation: No A