The great combi debate there are lovers of the combi boilers and haters . The upside of owning a combi is it directly supplies both your heating and hot water . The combi delivers high efficiency but so so the heat only and system boiler so it can’t be argued it’s more efficient. There is the advantage of space as the combi delivers from one location we’re the system and heat only boiler is combined with a water cylinder and fresh water tank and heating tank . The combi in most cases is easily repaired as all the components are within the boiler were the alternatives spread round the house zone valves cylinders tanks and pumps etc . Taking most of the factors into consideration the combi boiler is a good choice . Ask your local engineer for his advice when considering a new boiler and digest your best course of action.
