Stove pipe to flue increasing

[Doug Tait]

Could be aluminium, I don't think it is magnetic 

[Dan Maynard]

Many (most) grades of stainless are non magnetic eg 316 which is sometimes used for liner.

 

Edit should have googled first, seems like 904 and 316 are common grades of stainless for liners and both non magnetic.

[openspaceman]

1 hour ago, Dan Maynard said:

Many (most) grades of stainless are non magnetic eg 316 which is sometimes used for liner.

 

Edit should have googled first, seems like 904 and 316 are common grades of stainless for liners and both non magnetic.

Yes and 904 is mostly for solid fuel.

 

It confused me with that grey surface. What is the diameter?

 

I

[1867_owl]

It's a 7inch diameter so I'm hoping they it'll be straight forward enough to attach a 6 inch stove pipe to it using a 6 to 7 inch increaser.. 

It sounds like I may have trouble finding a hetas engineer to do the work and 'sign it off' given that they haven't also installed the flue.. it seems crazy to go to the effort and expense of dropping a 6 inch flexi down the existing flue though when a £50 converter can join the two different diameters of pipe!! The other route involves a £250 application for building regs and a whole lot of effort which is really rather avoid if possible too.!!

 

I know a load of people who never got building control consent. Is this a viable option so you think?

[Guest Gimlet]

A HETAS engineer will probably sign the existing flue off with a camera inspection. 

[openspaceman]

1 hour ago, Gimlet said:

A HETAS engineer will probably sign the existing flue off with a camera inspection. 

I thought they were supposed to do a pressure test before approving an existing liner.

[Guest Gimlet]

I don't know. But a Hetas engineer can inspect and certify an existing liner. I'd get it checked, get a certificate and crack on. 

Edited June 7, 2021 by Gimlet

[openspaceman]

13 minutes ago, Gimlet said:

I don't know. But a Hetas engineer can inspect and certify an existing liner. I'd get it checked, get a certificate and crack on. 

Me too as a first move