What is the difference between a Combination Boiler and a Conventional Boiler?
Or Combi System heats water ‘instantaneously’ whenever you turn on a hot tap, so you’ll never run out of hot water. In most cases the temperature of the tap is dependent on the temperature of the mains supply and the flow rate, hence hot water performance is quoted in terms of litres per minute raised through 35 degrees C. It can take 2 – 3 times longer to fill up a bath full of hot water. Newer models of combination boilers have a small storage cylinder to help deliver higher flow rates. The advantages of a Combination Boiler are, on demand hot water, no storage tank in the loft, less pipe work in the property, and a smaller amount of space is required. The disadvantages of a Combination Boiler are, limited hot water temperature, one tap operation, no back up if the boiler stops working and is dependent on water mains pressure.
