Does anyone know the difference between these two terms?
I am replacing my existing heating only boiler with a new one. Currently the plumber is quoting for a heating only boiler to replace it. The central heating pump is in the airing cupboard and the existing hot water system is independent off a range cooker using an indirect coil storage tank in the same airing cupboard. I wondered if I should fit a boiler capable of supplying hot water via the storage tank in the future. I realise that that would mean a three way valve being added to the system but is there anything else to take into consideration?