Brick chimney to metal flue

[stonecutter]

Re: Brick chimney to metal flue

I just may spray the inside as well. Are you referring to the rust from the build of the soot/acid?

I thought the outside was painted with high temp already..you definitely should coat the inside of that chase.

Not only the soot, but the temperature fluctuations are going to create condensation, the heat will negate the galvanized finish in a relatively short time.

[david s]

Re: Brick chimney to metal flue

The reason stainless is recommended is that heaps of people using galvanized have had to replace their flues after a few years service. Some prayer may help.

You could fabricate and fit an inner sleeve in stainless.

[Tscarborough]

Re: Brick chimney to metal flue

Flue gas is also highly acidic.

[V-wiz]

Re: Brick chimney to metal flue

The reason stainless is recommended is that heaps of people using galvanized have had to replace their flues after a few years service. Some prayer may help.

Using stainless would have been very expensive for this application, but i would have loved to use SS, sure. Prayer always helps

[V-wiz]

Re: Brick chimney to metal flue

I thought the outside was painted with high temp already..you definitely should coat the inside of that chase.

Not only the soot, but the temperature fluctuations are going to create condensation, the heat will negate the galvanized finish in a relatively short time.

Yes, the outside is painted with high temp paint. Thanks for the info, i will also coat the inside.

[V-wiz]

Re: Brick chimney to metal flue

Flue gas is also highly acidic.

Yup, and combustible. Ask me how i know. My profession involves construction and inspections for a restoration company. I am very familiar with that. Ill just have to clean the flue every few years, or if i have to ill shell out another $140 and have another one made.