I have a Baxi Bermuda Super GF fire (with back boiler) which I never use. My plan is to replace the back boiler with a combi and get rid of the fire, but I can't afford this just now. Is it possible to get the fire diconnected and removed leaving just the back boiler for the central heating and hot water ?
No, back boilers have to be installed with a gas fire fitted to it, its dangerous to have a back boiler with no firefront.
I'm assuming you want rid of the fire because it looks a mess.
You can still get baxi bermuda gas fire's but cost around Â£450 - Â£500 new. Whereas a combi boiler are only around Â£800 - Â£1000. There's not much point in replacing the fire front.