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Central Heating Systems Bristol

Condensing boilers are the most energy efficient central heating boilers on the market today. Its high operating efficiency is made possible by the design of the condensing boilers larger or sometimes dual heat exchanger. It works on the principle of recovering as much as possible of the waste heat which is normally wasted from the flue of a conventional (non-condensing) boiler. The high efficiency condensing boilersconvert 86% or more of their fuel into heat, compared to 65% for old G rated boilers.

Is your boiler efficient?

If your boiler is 10/15 years old or more then it could be a G rated boiler. Replacing an old G rated boiler with a new A rated condensing boiler and a full set of heating controls can save up to a quarter on your heating bills straight away and up to 1,300kg of CO² year. If your boiler is newer then it may well be in a higher energy efficient band. Below are typical savings which can be achieved by replacing boilers with new A rated condensing models and installing a full set of heating controls:

Old Boiler Rating Annual Saving (£/yr) Annual Saving (kgCO2/yr)
G Below 70% £235 1,260
F (70% - 74%) £150 800
E (74% - 78%) £110 575
D (78% - 82%) £70 375

Condensing boilers can be easily fitted to most new and old heating systems. Whether your looking for a Regular condensing boiler that heats your water through a hot water cylinder or a Combination condensing boiler that gives you instant hot water, without the need for a cylinder. Both provide central heating in the same way. A Unigas engineer will advise you on which type of condensing boiler is most suitable for your home.

Power flush

When installing a new boiler it is strongly recommended that you power flush your central heating system first. This is also necessary to insure that your boiler guarantee is valid for the time stated, as any problems that may arise will not be covered unless the system has been properly cleaned.

At Unigas we provide full system power flushing at competitive prices. To increase the circulation throughout your central heating boiler and radiators, a power flush of the system which cleans all dirt, rust, debris corrosion, slime, scale and solder from the system. We use the highest quality treatments available on the market:

  • Full power flushing
  • All boilers and radiators cleaned
  • Gives boiler protection
  • Removal cold spots
  • Increases circulation

The First sign a central heating system is in need of a full power flush is when the central heating is on and the bottom of the radiators will be cold due to a build up of slime, sludge rust corrosion debris. This may damage the heat exchanger in the boiler and decreases the flow circulation causing an insufficient central heating system. Another sign that the system is in need of cleaning is the colour of the water in your boiler and radiators primary circuit, The colour is a dark/muddy brown. With untreated systems the strain on your boiler and radiator are increased due to the pressures of the pump, heat exchanger etc having to deal with sludgy water.

The benefits of a power flush are tremendous. Excellent circulating, less boiler breakdowns, clean primary circuit heat exchanger has a longer life, less change of the pump malfunctioning and longer central heating running time.

Unigas Bristol Plumbing and Heating Engineers

for a friendly, reliable service
fully registered and insured

Tel: 07570980875