What Is A Combi Boiler?

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Combi boilers applied to be rather unreliable and would go wrong regularly, it was only about thirty years ago that Vaillant were the only manufacturers in the UK to have a Model, but in current years due to technological advances, climate control and the demand for alot more efficiency, New reliable, highly effective Combi Boilers now account for over 50% of all new boiler installations in the UK. Combi boiler rates vary due hugely due to brand, dimensions, energy consumption and reputation.

They are astounding space saving devices which heat your home and heat your homes water directly from one compact unit. The 'Combi' is naturally extremely efficient and does not demand a water cylinder or any laborious tanks in the loft. Water is immediately heated and delivered by way of the taps at mains pressure so you can appreciate potent showers without having the want of a pump.

How A Combi Boiler Works

The Central Heating

When the temperature of your property goes below the required temperature you have set on your thermostat. The thermostat signals to the boiler to fire up the pump inside the boiler. The 'Venturi Effect' into action. The water starts flowing by way of a narrow gap in the pipe causing pressure to develop up, just like when you put your thumb over a garden hose the velocity of the water increases and is this pressure that opens the gas valve.

The gas is ignited and the heat exchanger rapidly heats up a limited quantity of water, when the desired temperature is met, the thermostatic element expands, the hot water valve closes and the heating program valve opens. This permits the hot water to escape into and circulate in the central heating program, growing the heat of your property to your necessary temperature.

The Hot Water

The hot water is heated similarly to the Central Heating but it is the hot water taps that signals to the boiler to start out up. The hot water is heated by taking about 12 litres per minute of mains pressure via the heat exchanger, which transfers the heat from the burning flame to the water. Which is then delivered to the hot water tap.

Applications for the Combi Boiler

The main difficulty is the hot water supply to the taps. Although some producers think their combi boilers can service many bathrooms. Arguing that numerous bathrooms can be supplied sufficiently and depends largely on the lifestyles of the occupants. A combi boiler could feasibly supply larger houses with alot more bathrooms. But, if for instance bathroom 1 is being used and bathroom two was also becoming utilized, the combi boiler could not simultaneously supply sufficient hot water to the taps as the pressure will drop drastically, meaning both occupants of the bathrooms will encounter a poor washing conditions.

We suggest Combi boilers really should only be installed in smaller homes with only one bathroom.