Recommended firebricks

Hi all.

I'm thinking of building a wood fired oven in the garden - I've got lots of old victorian bricks (left over from renovation) that I will use to face it, but I'm wondering if anyone can recommend a type of brick to use inside the actual oven (ie oven floor, sides and arch).

Have any of you built a barbecue or oven and found a certain type of brick to be good? Any suppliers that you can recommend?

I need to price this project up, and have no idea how much firebricks cost - or if I'm honest, what I should be using

Cheers

since they're fired in a kiln, I'd say most bricks should be ok for an oven...

but then again I'm an electrician and the builders may know better..

old night storage heater is a good place to get fire bricks