I am likely to fit an a ashp, and not need a mains gas supply.

However one thing I really want is a gas hob (induction doesn't do it for me).

So I am looking to have a gas bottle supply just for the hob.

Would the gas bottle be required to be located externally or could it be stored.in a integrated garage?

If it could go in the garage is there any particular requirements for the pipe and protection?

https://www.calor.co.uk/gas-bottles/advice/storing

 

So looks like it needs to be external then

Compression joints only. No soldering.

Depending on the length you may find Tracpipe quicker and easier as it’s installed in a single length with no joints. 

I am in a similar situation to you with ashp and no mains gas but I went with induction having previously been a gas user and wou.

Have you tried an induction hob ? They are really good and most people (including me) seem to be converted once they have tried them.

Pros - Very quick to boil, very controllable, easy to clean, look better, no gas supply required

Cons - More fragile, compatible pans required. 

We have bottled gas fir hob (I wanted induction but was overruled!), bottles must be external AFAIK, yellow plastic pipe laid externally, copper through the wall to stop plate fir flexible gas pipe to hob (pull out cooker ) or copper all the way to hob.