Connecting Stove to Flue Pipe

If the 5" pipe fits proper;y, fine. If not, use a cloth tape measure and measure around the nipple comin gout of the stove then go visit your friendly tin knocker. He can whip up an adapter in about 5 minutes to go from the odd size to whatever you want. If it's steel, drill away. If it's cast iron you'll have to use a nice new drill, plenty of oil and go slowly.

Oil for steel, kerosene (or #2 fuel oil) for cast.

When I was piping the Alaska I was surprised to find that there were no holes in the collar for screws to hold the pipe. I took care of that in short order.

Or you could use a large "dryer hose" sized radiator clamp.

Don't use a hose clamp, it will not handle a good sized puffback. The Fire Marshall and insurance company want 3 screws in each joint, anything less and you are asking for trouble. I had 2 in the baro and it was blown almost completely out of the stovepipe, it was left hanging on one screw. I was lucky enough to be standing there when it happened, and it was the only puffback I have ever had to my knowledge.

If you use less than 3 screws per connection, consider it a "Death Wish".

coaledsweat wrote:Don't use a hose clamp, it will not handle a good sized puffback.

My point exactly!!

Never use a hose clamp!!!

(what idiot posted that suggestion?!?!)

( of course....a puff-back violent enough to dislodge a well clamped stove pipe would probably blow your house down too, so I wouldn't sweat it!)

same thing, need à little help...
here is the back of my stove, the size is 80mm/86mm the professionnal wanted to put à steanless liner of 150 mm in it....
i know sometime i'm acting liké fool but com'on that's not gonna be possible so...

2 possibilites...

1. i use à 10m flex 904L 80/86mm from the back of my stove till the top of my chimney.

2. i put an adaptator 80/86 to 150mm then i put my 150mm flex 904L

but in both case how can connect both together? (as they are the sale size )

Overwrap the junction of both pipe ends with a stainless sheet metal wrap and then apply 2 stainless steel screw type hose clamps, that should do it.

Hey G---------------use inches, more of us will understand what the hell you're tryin to do!!!! Yep, a bunch of old & dumber then some on here. PS--look for adapters at your local hardware.

Ok gonna try with inch, i'm not use to but let's try.

my stove back pipe is 3.38 inch outside and 3.14 inch inside.

the professional wanted to put à flue pipe in my chimney of 10m high, the flue pipe would be 5.9 inch... flex 316L...

so first of all i'm looking for 904L but not easy to find in France...

then law is saying not allowed under 5.9 inch flue pipe... but i'm cowboy... i don't really respect laws.

so... 2 options...

1. i put à 3.14/3.38 inch flex 904L 10m high from the back of my stove till the top of my chimney.

2. i put an adaptator 3.14/3.38 inch to 5.9 inch on the back of my stove then i put the 5.9 inch flex.

in option 1...as both stove pipe and flex pipe are same size how can i connect them? do the flex pipe going inside the stove pipe or outside the stove pipe?

option 2 : same question with adaptator?
and then flex pipe would go inside or outside the adaptator ?

sorry but first time for me that i have to deal with this kind of work by myself.

Devil505 wrote: ↑

Fri. Aug. 08, 2008 8:08 am

My point exactly!!

Never use a hose clamp!!!

(what idiot posted that suggestion?!?!)

( of course....a puff-back violent enough to dislodge a well clamped stove pipe would probably blow your house down too, so I wouldn't sweat it!)

Guess that explains that.

G, you're just gonna have to wing it. Get creative--cowboy or not!!! You'll figure it out. Slow down & LOOK at the set-up with the 6" flex & adapters--You'll get it figured out--don't be shy---just do it---safety is a must. I agree with W--if ya gotta use a clamp---DO IT!!!!!!!!!!!!!

freetown fred wrote: ↑

Tue. Jan. 24, 2023 2:53 pm

G, you're just gonna have to wing it. Get creative--cowboy or not!!! You'll figure it out. Slow down & LOOK at the set-up with the 6" flex & adapters--You'll get it figured out--don't be shy---just do it---safety is a must. I agree with W--if ya gotta use a clamp---DO IT!!!!!!!!!!!!!

Ok buddy, hum...the pipe cost around 1000€ for 6" and 500€ for 4" so being creative is a point, spending money through the window is an other one!!
being creative is a point....being safe is another one as well.

So i repeat myself but as the stove collar is 3.14/3.38", which flue pipe is best 3.14/3.38 or 5.9"? which difference does it makes?

Price G & ingenuity-----------------

In my stove the pipe is intended to slide inside.the stoves exhaust collar. I would guess yours is the same. My manual.says to use that size pipe to chimney. So you would use the 3.14 to the chimney, where you meet your code 5.9 to top of chimney.