Mr. Heater horizontal chimney kit

[smitty7611]

Hello everyone,

Glad to find a spot to post a question for garages

I purchased a Mr Heater Maxx 45000 btu.. Also the kit that Princess auto sells for Horizontal exhaust. After installing the Thiimble, and passing the double walled pipe through to the outside, I noticed a gap around the pipe approx. 1/4" all the way around. Went to the Selkirk web site and the hole is actually 5/8" diameter larger than the pipe.
I have found a finishing plate available for 4" pipe as an option, or do you just fill the gap up with rtv silicone?

Any advive or opinions would be appreciated!

Smitty

 

[fatboy99]

I sealed mine with silicone it dosnt get hot enough to need the high temp stuff so you could get it at any home center or hardware

 

[HIRISC]

I have the same setup - I have not filled in the gap.

 

[smitty7611]

|I used red high temp RTV. did the joints on the pipe in the garage.
Looks good.

Next week its propane time.

Thanks for the replys
Like the forum!

Smitty

 

[BigBlockVette]

I used the red high temp silicone also on th horizontal b vent pipe that goes through the thimble. I believe it is good for 650 F. Got my big max going about a month ago. Waiting for my first January gas bill. My garage is 850 ft2 and I am using a 45Kbtu mr heater, full insulation and drywall.


Dwayne