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Industrial Furnace Division

Heat treating, metal melting and soldering furnaces for industry and school shops

Concrete Curing Division

Steam Curing Systems for concrete block, pipe, precast and prestressed products

Mendota Hearth Division

Luxury gas fireplaces, gas fireplace inserts and stoves

CO2 Generator Division

CO2 Generators for Industry and Residential

St. Croix

Pellet Stoves and Multi-Fuel Stoves

Net Zero Fireplaces

Pathway to Net Zero Energy

Johnson Gas Appliance Company. Our Industrial Furnaces division manufactures heat treating, metal melting and soldering furnaces for industry and school shops. Our Concrete Curing division provides Steam Curing Systems for concrete block, pipe, precast and prestressed products. Over 10 million cement blocks and tons of concrete pipe are being cured every day with Johnson steam curing systems. For over 100 years, Johnson Gas Appliance Company has been a leader in gas technologies.