Description Overview 150 hp Pressure: 125 hw psi Btu: 5,021 Gas cfh (1,000 btu): 6,280 Gas (therm/hr): 62.8 Heating surface sq-ft (fireside): 750 Dimensions and Weight Dimensions: 224 ¾” x 85” x 103” Dimensions if 2 tubes are removed: 224 ¾” x 75” x 84” Weight: 14,100 lbs