If you are using a gas Charmglow patio heater in a three-season porch, you should always leave a window cracked. It’s very important to have a carbon monoxide detector somewhere on the porch just in case.
The Chromalox heaters provide quiet, reliable fan-forced heating in residential garages and small shops, as well as all types of commercial and industrial structures.
You should keep in mind that this heater requires hook-up by a qualified electrician. Make sure you purchase the appropriate voltage and wiring option for your needs. This model draws 31 amps of power and must be wired to a 40 amp circuit breaker.