18" fire opening

[Thoggy]

Hi
I have come to a straxgas theme 18 fire today and it needs replacing, has anyone got any good tips for making a 16" fire fit into the hole nicely. Don't do fires that much so but out of touch and looking for some advice.
on a side note I have been to a big country house with 3 gas stoves with no data badge or info, I know your not ment to do anything if you can't check your findings but would you just turn them off?
thanks Martyn.

 

[nysk2008]

do you not have any information on the stove? not even a make that you can call the manufacturer with? if not I would do all visuals and relevant checks and AR it if all seems ok - that's my take.

Cant comment on the fire, hate fires even though I hold it.

 

[Atouchofgas]

Get some slate filler pieces and some marble adhesive to shrink opening. I presume your putting in a convector type box and see if the fire Manu can make the frame bigger to cover the filler pieces
Wouldn't touch the stoves, could need ventilation etc etc