My hurricane heater has not worked since I bought my motor home.(4 years in may) we took it to a shop in Bend last April and they replaced almost all of the parts and it worked for a little while but it smoked real bad and quit working the first time we tried to use it. It would start, then after a few seconds and a lot of smoke the flame would go out. Today I removed the copper elbow and tried to start it, and it shot a flame out the bottom and the worked normal. So I connected my shop vac to exhaust pipe and sucked out a bunch of rusted corroded flakes and dust from inside the exhaust pipe. I tapped on the pipe all the way to the exit, and put my hand over the other end several times to increase the suction velocity. I was amazed at how much crud came out. I was able to re-use the copper elbow, but I need to get another one soon.it now works great, it doesn't smoke anymore either. I'm sure if I had done that right away I could have save me a lot of money and frozen nights. Just thought I would share in case others are having the same problem.
