Jayhawk714
New member
I have a Mr. Heater Big Maxx 50000 BTU heater in my garage. And it is not venting right. Normally when I turn it on I used to see the steam coming out of the vent pipe, and now I don't, or at least a small amount once and in awhile. The vent fan runs on start up but the casing where the fan blade is becomes VERY hot but the motor housing does not. Is that normal?? Also, if I leave it running after awhile my eyes start to water so I turn it off for awhile to let the air clear. So there is no doubt there is a venting problem. I am going to run a brush through the vent pipe, however, I can feel a small draft coming out of it. But the hot fan blade enclosure makes me wonder if my problem is there.