outside chimney - duravent or tech or plus ? double - triple wall confused

[thedriver]

we may soon be moving and need to get a through the wall 6" outside chimney about 20' long. duravent seems to be a good product but, not sure what product would be best for exposed outside chimney. I have seen on this forum that 2 wall insulates better then 3 wall . I am a bit confused. could someone please help with the proper info so I can make the correct choice

 

[bholler]

Yes double wall insulated class a is a better product than the triple wall stuff

 

[thedriver]

Yes double wall insulated class a is a better product than the triple wall stuff

ok thanks. is duravent a very good product ?

 

[begreen]

DuraTech is the name of the double-wall product. It's good and what we have for a chimney.

 

[thedriver]

DuraTech is the name of the double-wall product. It's good and what we have for a chimney.

" DuraTech " double wall . thank you

 

[mminor]

It's clear thanks to BeGreen and others that DuraTech (double wall) is better than DuraPlus (triple wall) due to two main reasons:

(1) DuraTech has thicker / more insulation
(2) DuraTech has a smaller footprint (i.e. Takes up less space). DuraTech 8-inch diameter = 10-inch total diameter. DuraPlus 8-inch diameter = 12-inch total diameter.

My question is this - if the ZC installation manual (Heat n Glo Northstar) specifies 'DuraPlus' as a chimney pipe option, can I use 'DuraTech' instead and still be up to specs / code?

Thanks for your help.
Matt

 

[bholler]

My question is this - if the ZC installation manual (Heat n Glo Northstar) specifies 'DuraPlus' as a chimney pipe option, can I use 'DuraTech' instead and still be up to specs / code?

nope you have to use what they want you to use. And DuraPlus is not a bad product duratech is just better,

 

[mminor]

Thanks for your super-fast response B Holler - much appreciated! This is a big help!

Matt

 

[thedriver]

I called DuraVent and spoke with a gentleman who was very helpful with what to use for my situation and why ( DuraTech ), along with more do's and don'ts, it all sounds correct to me now . I believe it is a very good product that will work well for us . thank guys

 

[bholler]

I called DuraVent and spoke with a gentleman who was very helpful with what to use for my situation and why ( DuraTech ), along with more do's and don'ts, it all sounds correct to me now . I believe it is a very good product that will work well for us . thank guys

So the rep from duravent told you to disregard the instruction from the fireplace? I am curious if heat n glo gave him authorization to do that. I would call heat n glo and check with them. They have final say

 

[BlueRidgeMark]

Since when does a stove manufacturer have "final say"over what a homeowner does? If it meets the draft requirements and local fire codes, that's it. The manufacturer can recommend all they want. They have no authority over the matter.

 

[bholler]

Since when does a stove manufacturer have "final say"over what a homeowner does? If it meets the draft requirements and local fire codes, that's it. The manufacturer can recommend all they want. They have no authority over the matter.

Well since manufacturers instructions trump code if you go against their instructions you cant meet code

 

[billb3]

If heat n glow's engineering and legal department determine or opine that a condition would compromise the safety and safe use of their equipment there's few code inspectors that would sign off on a unsafe condition.