Making lazy T top for fridge flue

[Adam G 1330]

I am making a lazy T out of steel and extending the flue 6 inches using flexible stainless pipe (fridge moved). I know this isnt recommended! but since im doing it any suggestions? As i understand the function of the lazy t is to prevent the flame blowing out, and water /dirt runs out the bottom rather than into the fridge. I wont be making a one way valve on the lazy T outlet but simply making it higher than the 'T'. I can upload pics. I Will be using CO alarm at all times to check efficacy, will have vents under fridge and only plan on using it for very short periods (beer cooling).

Thanks for reading

[Oldiebut goodie]

Yes, don't do it. Why do what the manufacturer says to not do?
From the manufacturer:

[1664]

I suppose it depends on their definition of "a short distance". 1mm? 1 inch? 1 foot?

[Oldiebut goodie]

I would expect an extra 6" of metal flue to lose a lot more heat - the original flue is only 5" to 6". There isn't a lot of exhaust heat to start with.