Reducing Stove Outlet

[wkpoor]

I've got a new to me stove to try this year. The outlet is 8" and my chimney pipe is 6". Anyone have any experience with running a stove reduced. The chimney is about 35' and in the last several years I've never had any draft issues but the old stove was 6" also.

 

[MNfarmer]

I had to do this with my boiler from 8" down to 7". I would say give it a try, a chimney that tall should have enough draft to make it work. Let us know how it goes! Good luck!

 

[danrclem]

My old Fisher stove has an 8" outlet and I got a 8" X 6" reducer at Lowes. I've been running it that way for several years and I don't have a problem.

 

[Wet1]

I guess my biggest concern would be getting the okay from the stove manufacture, building inspector, and insurance co.

I have no doubt the setup would work w/o any issues at all, but the day your house burns down for ANY REASON WHAT SO EVER, you know the insurance company would love to withhold payment because your 'undersized' flue caused the house fire.

So while it would work fine, make sure you CYA.

 

[wkpoor]

I guess my biggest concern would be getting the okay from the stove manufacture, building inspector, and insurance co.

Hahahahaha
Stove Mfg long out of business
Building insp is me!
Insurance doesn't know I burn full time but says its OK to have a stove. What they don't won't hurt them.

 

[Crofter]

How big is the flue liner in the chimney. It may be that just the thimble is reduced to 6" and it would not take a lot of expense to chip out and replace this with an 8" one. If it is an insulated metal chimney it wont work.

 

[Wet1]

In that case, you have nothing to worry about.

You should have no issues with the functionality. Remember, back in the day everything came with an 8" flue.

 

[wkpoor]

How big is the flue liner in the chimney. It may be that just the thimble is reduced to 6" and it would not take a lot of expense to chip out and replace this with an 8" one. If it is an insulated metal chimney it wont work.

I built this house and the chimney is 6" triple metal bestos on one side and a 10" MB on the other side for the 1st floor FP all encased in a stone chimney enclosure. It is what it is.

 

[danrclem]

I should have added that my thimble is 6" and my chimney is 8".

 

[wkpoor]

The crazy thing here is the old stove has a much larger firebox than this replacement but the new one is h*ll built heavy. Much smaller overall size but weighs 500lbs. Old one might do good to be 250lbs with a 30x36 over dimension. It is a Nashua model 24. I'm hoping all that steel does a good job of holding and radiating heat.

 

[mini14]

I just did the same thing, new stove has 6" old stove was 8" it has an even better draft with the new stove.in the house everything is 6 up to the thimble. outside everything is 8" If u were going the other way u might have a prob.