What are the advantages/disadvantages of a combi boiler?
No hot water storage cylinder needed. No cold water storage cistern in the loft. Hot
water available instantly 24 hours per day. No standing losses from stored hot
The flow of hot water is limited by a combination of the incoming mains pressure
and the output power of the boiler, meaning that if several outlets are used at the
same time, the flow to each will be reduced.