40000 BTU Furnace

Built to run efficiently without making a fuss, this unit handles the job without crowding your space. Say goodbye to bulky setups and unpredictable heating. Get yours from The Trade Table—where solid performance meets no-nonsense service.

Why Customers Choose a 40,000 BTU Furnace

A 40,000 BTU furnace offers the perfect balance of heating power and energy efficiency for mid-sized residential and commercial spaces. Whether you're upgrading your home's primary heating system or adding supplemental heat to garages, workshops, or additions, these furnaces provide consistent, reliable warmth without overconsumption.

What Makes Our 40,000 BTU Furnaces Unique

Our collection features high-performance 40,000 BTU gas furnaces engineered for long-term durability and flexible installation. Choose from direct vent and natural vent (B-Vent) options, with models that support both propane and natural gas. We prioritize millivolt and electronic ignition systems, clean-burning efficiency, and compact footprints to fit your exact heating needs.

40,000 BTU Furnace Benefits Customers Actually Care About

Mid-Size Heating with Maximum Efficiency

A 40,000 BTU furnace is ideal for heating spaces between 1,000–1,400 sq. ft., making it a go-to for homes, basements, and detached buildings.

Flexible Fuel Options and Venting

Available in natural gas or propane with direct vent or B-vent configurations—perfect for new installs or replacing outdated systems.

Reliable Performance in Cold Climates

Many of our models work without electricity via millivolt ignition, offering dependable heat during power outages or in off-grid setups.

Shop 40,000 BTU Furnaces at The Trade Table

Browse our selection of 40,000 BTU furnaces built for real-world performance. Whether you're looking for energy-efficient zone heating or a rugged garage unit, The Trade Table has the right solution, ready to ship and backed by expert support.