What Is A Combi Boiler ?

Combi boilers used to be very unreliable and would go wrong regularly, it was only around thirty years ago that Vaillant were the only manufacturers in the UK to have a Combi Boiler Model, but in recent years due to technological advances, climate control and the demand for more efficiency, New reliable, highly efficient Combi Boilers now account for over 50% of all new boiler installations in the UK. Combi boiler prices vary due hugely due to brand, dimensions, power consumption and reputation.

They are amazing space saving devices which heat your home and your homes hot water directly from one compact unit. The 'Combi' is naturally highly efficient and does not require a hot water cylinder or any laborious tanks in the loft. Hot water is instantly heated and delivered through the taps at mains pressure so you can enjoy powerful showers without the need 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 through a narrow gap in the pipe causing pressure to build 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 amount of water, when the desired temperature is met, the thermostatic element expands, the hot water valve closes and the heating system valve opens. This allows the hot water to escape into and circulate in the central heating system, increasing the heat of your property to your required 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 up. The hot water is heated by taking around 12 litres per minute of mains pressure through 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 with Combi Boilers is the hot water supply to the taps. Although some manufacturers believe their combi boilers can service multiple bathrooms. They argue that multiple bathrooms can be supplied sufficiently and depends largely on the lifestyles of the occupants. A combi boiler could feasibly supply larger homes with more bathrooms. However, if for instance bathroom 1 is being used and bathroom 2 was also being used, the combi boiler could not simultaneously supply enough hot water to the taps as the pressure will drop dramatically, meaning both occupants of the bathrooms will experience a poor washing conditions.

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

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Our Address And Contact Details

Buzz Heating
53 Tarnwood Park
Eltham
SE9 5PA

Tel – 020 8123 4039

email – info@buzzheating.co.uk

Website – www.buzzheating.co.uk

The Areas We Cover Are South-East London including Croydon, Lewisham, Catford, Eltham and Greenwich. Kentincluding Bexley, Sidcup, Bromley, Orpington, Dartford, Swanley, Tonbridge, Maidstone and Sevenoaks.

Post Codes

South East London

SE1,SE2,SE3,SE4,SE5,SE6,SE7,SE8,SE9,SE10,SE11,SE12,SE13,SE14,SE15,SE16,SE17,SE18,SE19,SE20,SE21SE22,SE23,

SE24,SE25,SE26,SE27,SE28

Bromley

BR1,BR2,BR3,BR4,BR5,BR6,BR7,BR8

Dartford

DA1,DA10,DA11,DA12,DA13,DA2,DA3,DA4,DA9

Maidstone

ME1,ME10,ME11,ME12,ME13,ME14,ME15,ME16,ME17,ME18,ME19,ME2,ME20,ME3,ME4,ME5,ME6,ME7,

ME8,ME9

Tonbridge

TN1,TN10,TN11,TN12,TN13,TN14,TN15,TN16,TN17,TN18,TN2,TN23,TN24,TN25,TN26,TN27,TN28,TN29,

TN3,TN30TN4,TN8,TN9