Offer Type
Offered
Condition
New
Appliance Type
Kitchen
Product Type
Unspecified Type
Combi boilers are the most common boiler type in the UK with over 70% of UK homes choosing them over other types. Combination Boilers. The popular choice for the average family home, combi boilers provide a 'combination' of central heating as well as hot water, and are the most energy efficient boiler option.