Quoting to convert from a back boiler to combi.
The customer has been told by another that they can keep the fire connected to the gas and I always thought that couldn’t be done.
Would think that if you leave the old boiler in place it would keep the flue as per M.I. as you can use a fire without the boiler running. Would ring the manufacturer for advise though
Yes done it a number of times. Disconnect the gas to the back boiler unit and cap leaving fire connected. Drain boiler and seal up, disconnect electrics.