SculptureOfSound
Feeling the Heat
I had the professionals suggest a similar install, hooking a short length of 6" liner to my previously relined chimney (it was relined with a larger rectangular liner for open fireplace use).
The rectangular liner was too big and the draft would have been poor as a consequence. I ended up doing the job myself with a much better full length liner and saved a lot of money compared to what they wanted to charge for a half ass install with inferior components.
Point being is that,like said by others, you cant always trust the "professionals". A lot of them will suggest whatever is cheapest and easiest for themselves both to save on work and get the bid (and increase profit margin) with little or no regard for what is truly best for your situation or heaven forbid being up to code.
Regarding the black glass on one side, that is probably where all the air feeds into an airwash channel and then comes out multiple holes along that channel. That is how it works on my insert at least. If your draft is weak most of the air is likely only coming out the holes nearest the beginning of the air channel, hence why one side stays much more clear.
If this is the case, fixing the chimney setup and increasing your draft should greatly help the issue.
The rectangular liner was too big and the draft would have been poor as a consequence. I ended up doing the job myself with a much better full length liner and saved a lot of money compared to what they wanted to charge for a half ass install with inferior components.
Point being is that,like said by others, you cant always trust the "professionals". A lot of them will suggest whatever is cheapest and easiest for themselves both to save on work and get the bid (and increase profit margin) with little or no regard for what is truly best for your situation or heaven forbid being up to code.
Regarding the black glass on one side, that is probably where all the air feeds into an airwash channel and then comes out multiple holes along that channel. That is how it works on my insert at least. If your draft is weak most of the air is likely only coming out the holes nearest the beginning of the air channel, hence why one side stays much more clear.
If this is the case, fixing the chimney setup and increasing your draft should greatly help the issue.