Heaters: Small space, big heat
Scott Gibson, Contributing Editor
The DV-55 is rated at 55,000 BTUs, enough to heat an area of 900 to 1,200 square feet. It does not require a chimney. Instead, the heater is connected to a 7-1/2"-diameter through-the-wall vent that provides combustion air as well as an outlet for exhaust gases.
Minimum clearances are 4" above and 18" to the closest sidewall. The heater comes with a thermostat and a blower with a capacity of 400 cubic feet per minute.
Its available with a standing pilot light or electronic ignition. In October 2004, the DV-55 cost about $1,600.