Product review (5 stars): Surprisingly quick installation
The directions were intimidating but the actual installation took about 30 min. The burner is under the drum so its a nuisance but there are only 4 screws to remove and 2 more to take out the burner.  Swap out the orifice and regulator piece and reassemble.  Just needed help holding the drum while reattaching the belt but other ways could be used almost as easily.