Vaillant ecoTEC 624 System Boiler Vaillant SEDBUK A rated boilers in the ecoTEC range operate with an annual average efficiency of over 90%. Typically, older types of conventional boilers only achieve efficiencies of 56%. That means your condensing boiler will use 35% less energy to deliver heating and hot water to your home. This is how a condensing boiler can save as much as 35p in every £1 you spend on energy. This can amount to a saving of over £240 on your annual home heating bill. Product Details |
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