The High Valley 1600 is a non-catalytic wood stove, designed for maximum efficiency and dependability. The 2.7 cu. ft. firebox allows up to 15 hr. burns and will heat up to 2,700 sq. ft with a max. BTU output of 43,000 BTUs. With 2.7 grams/hr. of emissions, this model exceeds the stringent Washington state standards for fine particle emissions. The 1600 comes standard as a top vent, but is also available as a rear vent. Rear flue is 23″ from floor when stove is installed on legs.