is my attic door a good enough vent for using a forced air heater in my garage?
burning deisel in a forced air heater. leaving the attic door open for a vent for the carbon monoxide. is this enough for a vent?
Do not do as oreos recommends re the use of CO detectors as monitors. First of all, CO detectors are not fully reliable nor is their accuracy reliable. Additionally, continual exposure to CO will eventually cause the sensor to fail. And fumes from cleaning solvents, paint, and other products can destroy the sensor - so a garage is not the place to install a CO detector.
An unvented heater is never completely safe. If you don't want to punch holes in your roof for the exhaust, maybe you can take a window pane out and and vent it that way. The burners in a work area should be at least 2 ' off the floor so you might want to mount the heater on a pedestal.
Good luck.
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