Englander 10-CPM Exhaust Blower Gasket

[Litzner]

I am preforming my first annual maintenance on my CPM-25 10-CPM and I have found the the exhaust blower was not seated correctly ( the screw holes were offset and the screws were not fastened all the way ) so the exhaust blower was sucking in air from inside the unit.

I was wondering, instead of ordering a new gasket could I instead just use RTV Copper which is rated up to 700F? I use RTV copper on headers, I think it would seal much better then the gasket that was on there and would cost far less then replaced that gasket every year.

Does anyone see any issue with using RTV Copper?

http://www.permatex.com/products-2/...-temperature-rtv-silicone-gasket-maker-detail

 

[Lake Girl]

Welcome to the forum Litzner. What brand stove is a CPM-25? Englander? I can find 25-XXX or 10-CPM... It helps if you put it in your signature line (edit on your profile page) so it shows up at the bottom of your thread and you should mention brand in the title of your thread as it will catch the eyes of fellow owners.

If it is an Englander, stoveguy2esw is the master tech at England's. He would probably appreciate the head's up of an assembly issue.

Not sure about the RTV Copper - there are silicone gaskets on mine...

 

[stoveguy2esw]

yes the 700F RTV is suitable though it makes it more difficult to remove th blower for cleaning

 

[Litzner]

Welcome to the forum Litzner. What brand stove is a CPM-25? Englander? I can find 25-XXX or 10-CPM... It helps if you put it in your signature line (edit on your profile page) so it shows up at the bottom of your thread and you should mention brand in the title of your thread as it will catch the eyes of fellow owners.

If it is an Englander, stoveguy2esw is the master tech at England's. He would probably appreciate the head's up of an assembly issue.

Not sure about the RTV Copper - there are silicone gaskets on mine...

I think you are right it is a 10-CPM, I was mixing it up with the 25-PDV I almost ordered. I hear Mike is the guy with all the right answers, he quickly solved an issue I was having last winter with the stove.

As for more details on the issue, it looked like the holes to where the blower mounted were not lined up correctly with the blower itself. So the screws that mounted it were very crooked and because of that could not be tightened completely around the top (this probably explaines why I always had to run the exhaust blower at full speed last season to get a good burn, and maybe why I had to put the stove in corn mode as well). You could see a small gap (1/16") between the mount, the gasket and the blower.

If I cant line up the holes when I put it back on I will just widen the holes in the blower a little on the drill press, should be fine.

yes the 700F RTV is suitable though it makes it more difficult to remove the blower for cleaning

Thanks for the info Mike!

If you are available for one more question, out of curiosity, how much slack should be in the pot stir chain? I tightened it a bit last night, as if I pinched the chain it could make contact with itself.

 

[Lake Girl]

Mike's work email is in his signature line ... may want to send him an email direct about the alignment issue and ask your chain question.

Lots of info on their website too:
http://www.heatredefined.com/support Links to videos, manuals, troubleshooting guides, etc.
http://www.heatredefined.com/support/troubleshooting-guide/pellet-stove-service-procedures

 

[stoveguy2esw]

If you are available for one more question, out of curiosity, how much slack should be in the pot stir chain? I tightened it a bit last night, as if I pinched the chain it could make contact with itself.

if the chain can be pinched to where the two are touching that's a little looser than I like to set them, I like to leave them where you can get to within about an either inch but not touch, if they are too loose the chain could "skip" or possibly come off