Piping from Insert to Flue

[aberzins]

Hey folks,

I'm installing a Regency 3100 insert into my fireplace opening, which has a solid stainless flue installed within a clay lined chimney of 16 ft in height.

I'm not sure what type of stove piping would be the best\safest to connect the insert to the flue?

A.The gameplan is - a 90 degree 6 inch steel\stove pipe elbow out of the insert to a short length of 6inch stove pipe ( < 24 inches) to the T of the stainless liner.

B. I could also go - flexible stainless liner to the T of the liner?

Any pros or cons?

I was going to go the stove pipe route.

I will also need to raise the inlet of the stainless flue ( basically move whole flue upward in the chimney) to accommodate option A.

So....

Is it also fair to assume that the flue exit of the insert needs to be significantly higher then the inlet of the stainless flue? Or can they be at the same level? The flexible liner would allow this?

thanks

aivars

 

[DAKSY]

Hey folks,

I'm installing a Regency 3100 insert into my fireplace opening, which has a solid stainless flue installed within a clay lined chimney of 16 ft in height.

I'm not sure what type of stove piping would be the best\safest to connect the insert to the flue?

A.The gameplan is - a 90 degree 6 inch steel\stove pipe elbow out of the insert to a short length of 6inch stove pipe ( < 24 inches) to the T of the stainless liner.

B. I could also go - flexible stainless liner to the T of the liner?

Any pros or cons?

I was going to go the stove pipe route.

I will also need to raise the inlet of the stainless flue ( basically move whole flue upward in the chimney) to accommodate option A.

So....

Is it also fair to assume that the flue exit of the insert needs to be significantly higher then the inlet of the stainless flue? Or can they be at the same level? The flexible liner would allow this?

thanks

aivars

You need to use ALL Stainless steel in this install, with a minimum amount of offset. No 90 degree elbows. The Max I would use would be 30 degree & even that may be too much. You'd be better off if you could use ONE 15 degree adapter off the insert & right into the flex liner, but if that's not doable, look for an angled adapter & then a short section of 6" stainless liner to another angled adapter.

 

[mellow]

At 16 foot you need this to be a straight shot up. Why are you trying to add a T to this install?

 

[aberzins]

The existing stainless flue was attached to my old hearth heater. So there is an existing T on the stainless flue with a clean out below. I'm not trying to add one.

Can you please clarify why the insert to to flue connections needs to be stainless steel?

And if that is the case, would a flexible stainless pipe to the solid stainless flue be acceptable?

thanks for the help,


Aivars

 

[mellow]

Inserts need to be stainless throughout due to them being tucked away inside a fireplace so they need to be able to handle a chimney fire or two. Single wall is used for free standing stoves due to it being outside and can be checked for issues.

Flex to Rigid stainless is not an issue, but upon saying that any curves or turns the smoke has to make will affect your draft, at 16 foot tall you want to be as straight as possible so your draft is strong so your 3100 will operate correctly.

 

[aberzins]

Thanks for the clarification!

Hopefully the last question, when going from flex to rigid stainless is there an adapter required and\or how is it actually attached?

 

[DAKSY]

Go Here:

(broken link removed)

Look for the adapters. They are fastened to the liners or rigid pipe with SS Zipscrews...

 

[Dave A.]

You're going to lose the T and the cleanout. The end of the liner is going into an appliance connector which goes directly into the flue exit of the insert, if this is a like most fireplace wood insert installs, as I understand it. When you say "solid" if you mean rigid, then yes, a short section of SS flex may be necessary to transition.