LP gas 40 gallon short power-vent, energy star qualified, 40,000 btu's, 3-position rotatable capability blower, 120 volt power cord, must be electrically grounded, horizontal and vertical vent runs up to 180 equivalent feet with 4" diameter venting, schedule 40 vent piping system with pvc, abs, or cpvc pipe,, vent distance up to 180' ft, with 4" pipe, 2" insulation, self-cleaning diffuser-end pex dip tube, glass lining, hot surface igniter, no standing pilot, first hour rating 73, recovery at a 90 rise gph 44.7, energy factor .70, anode rod, installed t & p relief valve, electronic gas control for more precise temperature control, unit dimensions : 59" height (to top of blower) by 22" diameter, 6 year tank and parts limited warranty. 1 year labor allowance not for mobile/manufactured housing, void if installed in mobile/manufactured. home, 174 lbs, up to 10,100 ft elevation.