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Portage & Main / Re: PM rusted out heat exchanger

« on: August 06, 2013, 09:27:51 AM »

I had the same issue just before winter last year.  The corrosion was pretty significant right where the insulation cladding meets the outside of the HX inspection door on the front. It was through wall but I was lucky because it was in between the cladding and the water jacket so it did not leak.   I ended up patching it up myself because I needed the heat and the only option was to get a new HX from PM.   This summer during my post season cleaning i found the same degradation at the rear of the stove visible through the access door.  Again it is a pin hole that is not leaking.   I clean my stove at minimum every week.  It was installed in 2008.  I'm filing a warranty claim this time...

A neighbor who also installed his PM in 2008 has significant leaks inside the heat exchanger.