Specifications include, but are not limited to: Classic Edge Titanium 760 HDX Outdoor Wood Furnace Alternative Brand Specifications (Brand Name: ) Overall Efficiency (LHV) 89.80% Overall Efficiency (LHV) Overall Efficiency (HHV) 83.40% Overall Efficiency (HHV) Manufacturer's Rate Heat Output Capacity 245,000Btu/hr Manufacturer's Rate Heat Output Capacity Heat Output (12 hr) 146,686 Btu/hr Heat Output (12 hr) Firebox Volume 23 cu ft Firebox Volume Firebox Dimensions 37"L x 44"H x 26"W Firebox Dimensions Door Measurement 21"W x 25"H Door Measurement Ash Cleanout Door Measurement 19"W x 11"H Ash Cleanout Door Measurement Water Capacity 330 Gal Water Capacity Weight 2,036 lbs Weight Supply Return Ports 1 set of 1 1/4" suppply and return ports Supply Return Ports 2 sets of 3/4" supply and return ports Integrated Wi-Fi Connectivity Standard Integrated Wi-Fi Connectivity Bypass Door & Alarm Standard Bypass Door & Alarm Measurements & Foundation Dimensions See Illustration Below Measurements & Foundation Dimensions Included with Outdoor Furnace Water Test Kit Included with Outdoor Furnace Cleaning Rod Scraper Tool Ground Rod Kit Two, 4-foot Chimney Sections