I've got two wall heaters that need help. On one, it doesn't seem like any
gas is coming out of the pilot. On the other, it seems as if the output of
the heater has been gradually decreasing over the years.

I'm pretty handy - an electronics engineer by trade - and am interested in
trying to fix them myself, especially after dealing with a couple of local
heater guys who want to replace the whole units without really debugging
the problem. I don't mind spending the money so much, I just don't want to
screw up my walls and paint, etc. It also seems like a little intelligent
troubleshooting could actually save labor costs.

Any advice on how to debug my problems would be greatly appreciated. What
would be _super_ would be pointers to any websites or publications that
describe operation and design of these sorts of heaters (as well as other
home appliances, BTW).

Thanks in advance for any help!

- Andy
Andy Voelkel 310 399 2289