Installing Stove Pipe

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Madfish

Member
Oct 18, 2012
49
Southern Maine
I'm preparing to install my new stove this weekend and was looking for advice on installing the stove pipe and thimble. I know the obvious answer is to follow the directions and check codes. Well, done that but looking for some straight shooting tips on how not to mess this up and ensure that everything comes out as planned.

I'm going to be installing the stove and pipe with the clean out inside the home with a 4 to 5 ft riser pipe before go into the 90 out through the wall. I am using a Simpson DuraVent stove pipe kit. I'm a bit nervous about installing the thimble and cutting and trimming the vinyl siding on the outside of the home.

Any tips or planning thought pieces would be greatly appreciated.

D
 
Anyone care to share any thoughts as to what they would have done differently? Any issues with removing vinyl siding? Anything?
I just did an install similar to what you described - I'm a fan of using a dremel to cut the vinyl siding.
If possible try to align the outside wall thimble just UNDER the next higher course of siding. That way it gives a good run off for rain - you'll be caulking anyways - but nice ot have a watershed already built into it.
 
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I just did an install similar to what you described - I'm a fan of using a dremel to cut the vinyl siding.
If possible try to align the outside wall thimble just UNDER the next higher course of siding. That way it gives a good run off for rain - you'll be caulking anyways - but nice ot have a watershed already built into it.

Nice tip. I was thinking about using the dremel with a cutting wheel, glad to know it works :)
 
I've used sawzalls with metal cutting (fine tooth) blades very successfully. A circular saw with a wood cutting blade installed backwards also works well.
As far as locating the outside of the thimble to the siding, generally that means you'll have to have an additional slip (adjustable) piece of pellet vent in the system. I wouldn't worry too much about the location, as standard siding installations call for J-Channel all around any opening in the vinyl, if the J is installed correctly - top first, then sides then bottom, you won't have any leaks. A bead of silicone caulk at the seams may ease your mind...
 
What is the common length of pipe that extends outside of the house? I have a Simpson Dura-Vent kit and the instructions say at least 6" however I have read up to 18". My pipe will be extending into my driveway so I would like to stay on the shorter side but do not want to risk damaging my vinyl siding.

Any advice?
 
What is the common length of pipe that extends outside of the house? I have a Simpson Dura-Vent kit and the instructions say at least 6" however I have read up to 18". My pipe will be extending into my driveway so I would like to stay on the shorter side but do not want to risk damaging my vinyl siding.

Any advice?

Yes. Read your stove's installation manual & follow THOSE instructions on the venting parameters...
 
Here is a quick mock up of the pipe install. I would like to get the pipe closer to the wall before taking the 90d to go up 4-5ft before going out through the wall. I'm thinking I would like the pipe to exit through the wall appx. at the mid location of the current picture. Here are a couple pics to share. Any thoughts to make this process easy.

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You need a 45 degree elbow and about a 1' pipe to get it to the wall.

BTW, the pipe kit did come with an appliance adapter, right?
 
You need a 45 degree elbow and about a 1' pipe to get it to the wall.

BTW, the pipe kit did come with an appliance adapter, right?

Yes there is a appliance adapter. Unfortunately not fully sure what the use or purpose of this items is. Could you educate me.

Also, the appliance adapter when installed in the exhaust blower pipe it is very loose and seems like it would not stay in place on its own.

Thanks
 
Yes there is a appliance adapter. Unfortunately not fully sure what the use or purpose of this items is. Could you educate me.

Also, the appliance adapter when installed in the exhaust blower pipe it is very loose and seems like it would not stay in place on its own.

Thanks

You need to apply RTV silicone to ensure that is stays in place & doesn't leak. You should also fasten it with AT LEAST one screw.
 
Because the stove adapter is the FIRST piece that you are REQUIRED to use. If the 45 was, it wouldn't be called an elbow, it would be called a 45 degree stove adapter. That may sound a bit harsh, But that's the way it is. You will find that no one here will tell you the incorrect way to install ANY kind of venting. Mistakes in installations of fuel burning appliances can result in injuries & even death. Do it right & enjoy the warmth it will give you.
 
HELP! The sun is going down and I need to finish this up.

I installed the outside thimble and there is a large gap between the thimble and the actual lip of the vinyl siding even with a j channel. The siding had 1/2 rigid insulation under it which I removed to put the thimble on. Now with the gap I have no way of weather proofing unless I go holy crazy with silicone which doesn't seem like the best option.

Here are a few quick pics to help show what I'm trying to describe.

photobucket-40000-1352062918525.jpg


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Any help would be greatly appreciated.
 
Uh oh. I would have cut the hole the size of the round thimble diameter, and screwed through the insulation to the wall...

Hopefully someone has a good idea for you, I'm thinking you could wood frame the thimble out another inch, and screw into the new frame. Foam around the thimble to weatherize, then seal it up on the outside.
 
You should be able to pad the thimble towards the siding with some furring or another layer of plywood, until you get it to where the J-Channel will fit. THEN you can 'goob' (technical term) on the sillicone...
 
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Thanks for the quick responses! I just cut up some 2.5" strips of 3/4" plywood and will be framing out the thimble in the morning to create a some what flush look with the siding. The J channel has been angle cut and ready to be installed once I am able to re-install the outside thimble. Otherwise the install is going well and should near finished tomorrow.

Note to self... need to start DIY projects earlier in the day. Or just not on the first day of day light savings, the sun goes down to fast!!!
 
DASKY's idea will work just fine but don't knock OMV's idea. You might like the look better. A little cleaner IMO.
 
The J channel has been angle cut and ready to be installed once I am able to re-install the outside thimble.

Actually, you shouldn't "angle-cut" the J-Channel. The correct procedure - to prevent water penetration - is to cut the top piece first & run it past the edges of the opening by the thickness of of the outer surface. The sides should be fit underneath the top piece & the bottom surface of of the top piece should be tabbed & bent down in the sides. The side pieces also extend past the bottom of the opening & the bottom piece fits between the sides. Does that make sense?
 
Here's a pic of the J channel around my slider. The top piece has a 45 and goes OVER the side piece which is cut at a 90. Dresses the joint up a bit while keeping rain out. You can see how the tab DASKY was referring to is bent down behind the side piece.2012-11-04_19-29-29_774.jpg
 
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