Duravent 3" stovepipe adapter

[bearphishing]

I finally received my vent kit after a mix up with the shipping but it gave me some needed time to work on the hearth. I am through the wall and everything seems to be matching up pretty well. I bought a Duravent stovepipe adapter before I received my kit because I thought I needed the extra 3" to get around a stud. I have one attached to the stove pipe and need another three inches out the house to extend the rise to the required distance from the wall. My question is has anyone ever put the adapter in line even though the adapter DOES NOT have the twist and lock notches on the male end? It seems to be a snug fit between a 1' piece and the provided cleanout and am looking to see if anyone has had exhaust escaping.

I'll post a picture of the stove because I know how you all love pictures of set-ups

 

[Heatsource]

man is that some new old stock?
the current DVP pipe looks much different- smother

I dont see any reason you can't use an adapter like that, just be sure all the joints are well siliconed

 

[Lousyweather]

Duravent

 

[slvrblkk]

You better check your EVL, you have a lot of bends in that vent for 3"....at least that what is sort of looks like based on the posted pics...

 

[Lousyweather]

15' max for 3" pipe, each 90 degree turn is 5', each 45 degree bend is 2.5', cant go any further than 4' horizontally. I see the inside is a 45 and 90, wondering about the outside...didn't wanna say anything, but since you opened the can of worms, what the heck!

 

[titanracer]

I agree with Lousyweather, could have put about a 1 foot section to the stove adaptor, then the 45 degree elbow and straight out thru the wall. All thoughs bends restrict exhaust flow. Makes it easier for your exhaust to fill up & makes it hard to clean everything also.

 

[ZBrooks]

... each 90 degree turn is 5', each 45 degree bend is 2.5'

I am curious as to where this information came from. I've only seen the part about the 15' max for 3" pipe.

 

[bearphishing]

Sorry I have not gotten back to this thread for awhile. For bends I only have the 45, two 90's, and a T. From the stove adapter it does to a 45 > 90> 1' section> 3" and then to the T. I have four 1' sections outside to the 90 termination. I have not had any issues with venting as of yet and calculated 20' for my EVL........ Is that borderline too high? The 3" adapter is holding very tight with the silicone and I have yet to detect any leaks after a couple weeks of use.

 

[jdinny]

This is what I used for my install.
After 15 EVL, it was suggested to use 4" vent. I did a straight out termination with a battery backup so

1. Each 45 degree elbow = 3 EVL
2. Each 90 degree elbow and Tees with cleanout = 5 EVL
3. Each foot of horizontal run = 1 EVL
4. Each foot of Vertical run = 0.5 EVL
5. Elevations above 3000 ft with an EVL of 7 must adapt to 4 inch vent pipe.

Using that formula, you'd be at 21' EVL.
here's a shot of my install.

I am going to remove the 3' section and replace with a 2'er.

Your hearth look great!
Nice work

 

[bearphishing]

Yeah it was tough to not use a 45 and a 90 to exit the house because I wanted it to leave on the side rather than the front and even then I have the thimble pinned up against a stud. Thanks, I took the picture before I finished the grout but I was like a little kid on Christmas to get the stove running.

 

[jdinny]

Yeah it was tough to not use a 45 and a 90 to exit the house because I wanted it to leave on the side rather than the front and even then I have the thimble pinned up against a stud. Thanks, I took the picture before I finished the grout but I was like a little kid on Christmas to get the stove running.

I know the feeling.
That's why we bought a hearth pad, because we were in such a hurry.
Over the summer, we will build our own and sell this on on CL