D40D Series Inserts by Mendota® Share Manufacturer: Johnson Gas Brand: Mendota® Collection: D Series Inserts Model: D40 Year: 2026 Add to Quote Check Availability Ask a Question Trade-In Value Request Financing Very professional, on time,answered all my questions..I would recommend to friends🙂 … Cathy Brucks Nice store, very informative staff, had great answers to are questions, a great stop for pellet or gas fireplaces.. Scott Guzman Great selection of wood burning, pellet and gas stoves and fireplace inserts. Very friendly and knowledgeable staff. Bruce Soper I would highly recommend Abundant Life to anyone looking for a stove or spa! There sales staff is extremely outgoing and helpful and their service department is excellent. 👍👍👍 … Melissa Anderson Nice quick install. Bought an absolute 43. Will never buy anything but a harmon again. No junk box store pellet stoves for me again Erich Kikel Ryan was a pleasure to work with. It was my first time. He knew exactly what I needed and made the whole process so easy! Dale Emily Frazier DescriptionThe D40 gas fireplace insert is designed to fit easily into large, traditional fireplaces. The D40 offers infinite flame/heat adjustment and won’t let you down, continuing to work even in a power outage. It has the warmth and beauty of a wood fire with the added advantage of operating with clean, convenient gas. FeaturesRemote ControlVariable Air BlowerMade in USA Downloads Available OptionsLabelBTUFuel TypeIgnition TypeNatural Gas - CPI40000Natural GasAutomatic (Standing Pilot)Propane - CPI39000PropaneAutomatic (Standing Pilot)Natural Gas - IPI40000Natural GasAutomatic (Intermittent Pilot)Propane - IPI39000PropaneAutomatic (Intermittent Pilot) Specifications Hearth Type: Fireplace Inserts Model Number: AA-11-00709 Material: Steel Style: Traditional Vent Type: Direct Vent Fuel Types: 2 types available Total Heat Output: 39000-40000 BTU Efficiency: 73% Ignition Type: Automatic (Intermittent Pilot) Viewing Area Dimensions: 447 sq. in. Size: 15.94" x 30.25" x 20.44" Share Manufacturer: Johnson Gas Brand: Mendota® Collection: D Series Inserts Model: D40 Year: 2026 Add to Quote Check Availability Ask a Question Trade-In Value Request Financing Very professional, on time,answered all my questions..I would recommend to friends🙂 … Cathy Brucks Nice store, very informative staff, had great answers to are questions, a great stop for pellet or gas fireplaces.. Scott Guzman Great selection of wood burning, pellet and gas stoves and fireplace inserts. Very friendly and knowledgeable staff. Bruce Soper I would highly recommend Abundant Life to anyone looking for a stove or spa! There sales staff is extremely outgoing and helpful and their service department is excellent. 👍👍👍 … Melissa Anderson Nice quick install. Bought an absolute 43. Will never buy anything but a harmon again. No junk box store pellet stoves for me again Erich Kikel Ryan was a pleasure to work with. It was my first time. He knew exactly what I needed and made the whole process so easy! Dale Emily Frazier Hearth Appliances We Carry See All Quadra-Fire 4300 Millennium Wood Stove Starting MSRP Learn More Add to Quote Nexgen-Fyre™ Medium Flush Wood Arched Fireplace Insert Starting MSRP Learn More Add to Quote DXV42 Traditional Gas Fireplace Starting MSRP Learn More Add to Quote Quadra-Fire 3100 Millennium Wood Stove Starting MSRP Learn More Add to Quote Shelburne Wood Stove Starting MSRP Learn More Add to Quote Soapstone Heritage Wood Stove Starting MSRP Learn More Add to Quote Quadra-Fire Expedition I Wood Insert Starting MSRP Learn More Add to Quote Timber Fire™ See-Thru Configuration Starting MSRP Learn More Add to Quote Medium Flush Wood NexGen-Hybrid™ Arch Insert Starting MSRP Learn More Add to Quote Pellet Fireplace Insert Accentra52i-TC Starting MSRP Learn More Add to Quote GF 520 DV IPI Gas Stove Starting MSRP Learn More Add to Quote Rockport NexGen-Hybrid™ Wood Stove Starting MSRP Learn More Add to Quote Quick Search Hearth Appliances (334)Patio Furniture (71)Hot Tubs & Swim Spas (29)Fire Pits & Patio Heaters (24)Grills & Outdoor Kitchens (11) All Hearth TypesFireplaces (133)Stoves (87)Fireplace Inserts (63)Log Sets & Fireplace Media (30)Fireplace Mantels (11)Furnaces (5)Outdoor Fireplaces (5) All Fuel TypesNatural Gas (177)Propane (170)Wood (71)Electric (34)Pellet (20) All FeaturesMade in USA (296)Remote Control (202)Variable Air Blower (156)Gas Conversion (51)Color Changing (47)Multi-Sided (28)Zero Clearance (26)Riddling Grate (12)Air Wash (3) All Features Go While every reasonable effort is made to ensure accuracy, due to continuous product improvement, standard features, options, pricing, and specifications may change at any time without notice. Please contact us for current information.