Common in large commercial and industrial spaces with a central blower, gas duct furnaces are versatile, with models for both indoor and outdoor use. With gravity vented, power vented, and separated combustion designs using natural gas or propane, you'll be able to find a gas-fired duct furnace that works for you. Gravity-vented units are available in a variety of sizes, and designed to be used in your building's heating/cooling system with a natural draft. Power vented units may be a better choice for horizontal vent systems or when there's negative pressure around the unit.

Our experienced customer service team is prepared to help you choose the one that's right for your application. Browse our selection of gas duct furnaces, all of which qualify for fast, free shipping in the lower 48 states.

About Our

Gas Fired

Duct Furnaces

We want to ensure you get your order right the first time, so we list every product with great detail. Low factory-direct pricing on new (never refurbished or factory second) items is just the beginning. You'll see product manuals, installation guides, and warranties along with availability and lead time.

Because gas duct furnaces require qualified installers, you'll be asked to confirm that you are a qualified installer or that you will hire one. You'll also see some required selections, such as fuel type, gas control, voltage, and access side, along with optional selections for conversion kits and other accessories. If anything about your order seems incorrect, we'll contact you before we fulfill it to ensure there were no mistakes when you placed the order. It's another way we make sure you get exactly what you want.

Northstock is here to meet all your heating, cooling, and ventilation needs. Contact us for more information about gas duct furnaces and other HVAC solutions.