Gas unit heaters are ductless, automatically controlled, self-contained, vented, gas-burning appliances that distribute warmed air without ducts. They feature air circulation fans and are typically used in commercial settings. At DK Hardware, you can easily find a range of HVAC gas unit heaters from popular brands that will make your job much easier. Our range of products comes in top-class quality and ensures the best service you'd expect for. The Dyna-Glo Vent-Free Liquid Propane Thermostatic Wall Heater features state-of-the-art blue flame technology that works by convicting heat to warm the air the same way as a central heating system. These heaters are an excellent choice for your home, cabin, or garage. The Williams Monterey Top-Vent Wall Natural Gas Furnace features a draft hood design, a porcelain coated chamber, and heat disseminating baffles, adding valuable efficiency, longevity, and energy savings. For any further queries regarding these products, feel free to get in touch with our online experts.