Boilers
VAILLANT BOILERS
High efficiency boilers:
Most types of boiler can be high efficiency or 'condensing' boilers. There are high efficiency combination boilers, system boilers or traditional open vent boilers. The term 'condensing' or high efficiency applies to the technology which is used. This means the boiler recovers more heat from the amount of gas that is burnt thereby making it more efficient than conventional boilers.
By recovering and using heat that would otherwise be lost up the flue, the best high efficiency boilers can operate with seasonal efficiencies in excess of 90%. Although high efficiency boilers require a higher initial investment, they are very economical, and can repay the extra initial cost in fuel savings.
If your existing boiler is more than 15 years old, replacing it with a high efficiency boiler could save you as much as 35p in every £1 on the gas used for heating and hot water.
Combination boilers:
Combination or combi boilers are the most popular type of boiler in the UK, found in around 70% of homes.
Combination boilers provide central heating and hot water without the need for a separate tank to store water; therefore you can easily hide them away under the stairs or in kitchen cabinets.
System boilers:
System boilers, often referred to as sealed system boilers, provide central heating and hot water via a storage cylinder housed in an airing cupboard. There is no need for water tanks in the loft, as with an open vent boiler.
Open vent boilers:
Open vent boilers, sometimes known as heat only boilers, provide central heating and hot water via a boiler, a storage cylinder housed in the airing cupboard and water tanks in your loft. If you are looking to do a full system overhaul most people opt to remove the tanks from the loft.
Created using it’seeze
