Kozy Heat Bellingham 52

The Bellingham 52 is sized for about 1,500–3,000 sq ft. The manual rates it at 59,500 Btu/h maximum input on natural gas or propane, turning down to 18,500 Btu/h on natural gas and 21,500 Btu/h on propane. The brochure lists its EnerGuide (P.4) efficiency at 65.20% on natural gas and 65.80% on propane. Actual coverage depends on your floor plan, ceiling height, insulation, and climate.

Yes—the burner runs on a battery backup, but the fan and lights stop. It normally needs a 120-volt circuit that's always hot, and the control module holds four AA batteries (not included) for outages. On battery power the manual says it operates the burner only, so the fan, top light, and ember-bed light won't run until power is restored.

It's a direct vent fireplace that uses 5" x 8" co-axial pipe, vented straight up (3 ft to 50 ft) or out through a wall with up to 25 ft of rise plus 25 ft of horizontal run. Short rises limit the horizontal run—for example, 36" of vertical pipe allows no more than 6 ft horizontally. The manual's 4" x 6-5/8" reducer setups are vertical terminations, and the optional Kozy Power Vent handles horizontal terminations. This model's manual doesn't include a conversion for running the vent through an existing chimney.

Yes, but it's manufactured for natural gas, so propane needs the #LCK-BH52-SPB propane conversion kit, sold separately. Kozy Heat's option list shows this as a propane valve step motor kit. Convert before framing if you can, because converting later means removing the control board. On propane the maximum input stays at 59,500 Btu/h, with a higher 21,500 Btu/h low setting.

Yes, with planning. Kozy Heat's tests found TV surface temperatures stayed at or below 150°F when a 4-1/4" deep recess was built above the fireplace, though the manual makes TV placement the homeowner's responsibility. A vented cavity or optional Komfort Zone Kit reduces heat above the fireplace and allows combustible facing and lower mantel clearances. Up to two interior or exterior heat transfer kits can also move heat to another area of the home or directly outside.

The Bellingham 52 needs a minimum rough opening 65-5/8" wide, 50-1/2" high, and 28-3/4" deep, in an enclosure at least 88" tall. Clearance to combustibles is 0" at the stand-offs, 2" at the corners, and 36" in front. In a standard install, 3/4" mantel trim can start 8" above the top finishing edge and a 6" deep mantel at 11-1/2", and any mantel leg, combustible or not, needs 6" of clearance. The unit weighs 510 lbs, so plan a team lift and solid support.

You have to pick a firebox panel set—the manual says refractory or black glass panels are required to operate the fireplace. Choices are Chicago brick, herringbone, ledgestone, or black glass, with a 17-piece traditional or birchwood log set. A fan kit, a full-function remote, a top light, an ember-bed light, and a safety barrier screen are standard. The rectangle surround isn't offered on this size; a 4-piece exterior trim kit is the optional finishing piece.

The included Proflame 2 remote turns the fireplace on and off and doubles as a room thermostat. It has six flame heights, six fan speeds, six top-light levels, and a split-flow control for the secondary burner. Smart thermostat mode turns the flame down automatically as the room reaches your set point, and a wall-mount transmitter is available as an option.

Yes, within limits. The manual says it may be installed in a bedroom, though it also warns to plan around the large amount of heat it produces. It allows installation in an aftermarket, permanently located manufactured home (USA only) or mobile home where local codes don't prohibit it; no separate mobile-home kit is listed, so confirm local requirements with your installer.