After 8 years wait, we have finally treated ourselves to a (double) gas oven - our electric on is on it's last legs. It's replacing a single built-in unit. Examining the under stove space, it seems the unit was constucted to take up to a 700mm oven (which the new one is) by removing a shelf. So I'm not too worried about the physical installation.
However I'll get a corgi (or is it gassafe or something ?) guy to actually hook the gas up. Currently the gas *stove* has a rigid pipe which plugs into a cooker connection. The gas pipe size looks like
15mm. Is this going to be OK, or will the whole pipe run need to be upgraded to 22mm ? Can you get 1->2 adapters to split the single existing connection into two (one for stove and one for oven) ?
Although the Mrs and I hated cooking with electricity (we inherited the oven) when I did the maths, we found that we used more gas than electricity in a 3:1 ratio ... so we couldn't justify a gas oven on the grounds of saving fuel.