Rinnai brings its decades of gas heating expertise indoors with the EX22DTP wall furnace. This is a direct-vent system, meaning it pulls combustion air from outside and vents exhaust back out through a single, sealed pipe in your wall. That design is the core differentiator. It makes the unit completely safe for indoor air quality and allows for flexible installation in rooms without an existing chimney.

The 20,700 BTU output is substantial, capable of heating a large room or an open-concept space efficiently. The heat feels consistent and draft-free, thanks to a balanced circulation that doesn’t just blast hot air at floor level. In practice, the room maintains its set temperature without the noticeable on/off cycling and temperature swings common with basic space heaters. The controls are straightforward, and the operation is genuinely quiet—you’ll feel the warmth long before you hear the unit.

Its beige, pedestal form factor is utilitarian. This isn’t a decorative appliance; it’s a purposeful heating solution designed to be installed and forgotten until you need reliable warmth. It’s ideal for supplementing heat in a drafty addition, a basement, or as a primary source in a well-insulated studio or cabin. Just ensure you have a qualified professional handle the gas and venting installation.