199000 Btu/hr Heating, Liquid Propane/Natural Gas Fuel, 3/4 in MNPT Gas Connection, Electronic Ignition, Direct/Power Vent, 4 in Vent, Non-Condensing Condensing/Non Condensing, 10 gpm Flow Rate, 0.82, 3/4 in MNPT Water Connection, 4 to 10-1/2 in WC Gas/15 to 150 psi Water Pressure, 100 to 160 deg F, Yes Ultra Low NOx, Indoor Indoor/Outdoor, 13-3/4 in W x 10 in D, Commercial (Price subject to change without notice. Check stock before order)