Central Heating Systems

What is a Central Heating system

Your central heating system plays an important role in your home, It keeps you supplied with the heat and hot water that makes life so much more comfortable.

In the UK Most households have mains gas central heating systems, these are commonly called a ‘wet system’. These are powered by a gas-fired boiler which heats water providing central heating through radiators. This boiler also heats the water in the taps of your home. 

This system works by circulating hot water through a network of pipes that connect to the radiators and taps throughout your house.

At the heart of the system is the boiler, which burns fuel (gas). Sometimes some homes have a ‘heat exchanger’ which heats the water that feeds into the network of pipes. ‘Wet systems’ are the most popular form of heating system in the UK. 

Evolution of central heating

Over the last few years, advances in boiler technology have made a huge difference to the way we heat our homes.

For instance, traditional boilers can only achieve up to 60% efficiency, while newer modern condensing boilers can achieve efficiency ratings of 90% or higher. This results in lower fuel bills, thus saving you money.

Choosing the right boiler

Condensing boilers are not the only type of new boilers available, there is a wide range of boilers types currently on the market, so you can relax in the knowledge that we can find one that suits not only your home but your lifestyle too.

As each boiler has its own installation requirements, talking to our experts is important. We will look at things such as:

  • The size of your property
  • Mains water pressure
  • The number of bathrooms, showers, wet rooms, radiators, etc.
  • If you have a loft
  • Whether you want to free up space in your home

We also consider how you use your heating and hot water and how it might change in the future, for example, if your family is growing.

Gaining expertise from the right company is important, at UK GAS HEATING SERVICES LTD we will help to make this process simple, whilst also ensuring you receive a boiler that meets all your needs, both now and into the future.

Energy related Product (ErP) labelling

Its purpose is to ensure that you as a homeowner are aware of the energy efficiency levels of your heating appliances. The ErP Directive will help the UK and other European governments reduce carbon emissions. This will improve the overall efficiency of UK properties, whilst also helping you to reduce your energy bills.

The ErP regulations cover boilers, water heaters and other heating appliances up to 400kW (a typical dimestic boiler ranges from 9-40kW).

What is Energy Labelling?

From September 2015, the performance requirements set out in the ErP Directive will apply to all residential and commercial heating products throughout Europe, including electrical power products, boilers and water heaters as well as renewable technologies such as solar thermal products and heat pumps.

ErP is made up of two separate directives: EcoDesign and Energy Labelling. EcoDesign will only affect the manufacturers of energy-related products, whilst Energy Labelling will affect both installers and manufacturers.


The EcoDesign Directive ensures that energy-related products meet performance and emissions standards at the point of manufacture. Any product that does not meet these requirements will not get a CE mark, which all products must have to be sold legally in the EU.

Energy Labelling

From 26th September 2015, boilers and heating products will be given an efficiency rating from G to A+++ which will need to be clearly displayed on the product. Installers will also be required to complete a new document called a 'fiche'. For more information, visit our 'Understanding the Fiche' page.

Thermostatic Radiator Valves (TRVs)


The radiators in your home should be fitted with Thermostatic Radiator Valves (TRVs) which will enable you to control the temperature of each room individually. As well as helping to maintain your comfort levels at different times of the day, TRVs also provide a simple means of reducing running costs.

The higher the number shown on the TRV, the hotter the room should get, up to a maximum of around 22°C. The TRV should preferably be well exposed and not hindered by furniture or curtains so it can accurately detect the room temperature. Do not be too concerned if the whole of the radiator is not as hot as uncontrolled radiators, it is likely that the TRV has temporarily shut the radiator off as the room is up to temperature. A TRV should not be fitted on the radiator in the room with the room thermostat.

Maintenance of radiator valves

It is advisable to manually adjust all radiator valves every 2-3 months to prevent them sticking. It is also important that the plastic tops of all valves are always in position and not cracked or damaged so as to prevent accidents. Care should be taken when vacuum cleaning carpets so as to avoid damage to valves and pipe work.

Central Heating Controllers

wHAT IS A System Controller

 Boiler controls make a big difference to your heating system. With our condensing boilers already operating at peak efficiency, our range of controls give you an additional way of boosting your system's overall performance.

Effective heating controls are a vital part of an efficient boiler-powered central-heating system. Clever use of controls can help you minimise energy consumption by ensuring each room is at the right temperature for comfort, while avoiding overheating. Which will keep your home cosy and cut your energy bills.

Save money with the best heating controls

Simple Controls

Traditional mechanical clock controls which are set for 24 hour periods.

Digital Controls

Set on/off heating times that fit around your lifestyle and benefit from a 7 day programming schedule.

Intelligent Controls

Learn how long it takes to heat up and cool down your home, and monitor external temperatures. Great for energy efficiency.

Internet Connected

Controlled via an app on your smart device, these learn from your system's behaviour, use live weather data, keep track your fuel usage and more.

Boiler Filters

Features Benefits
Highly effective filter Safeguards the boiler against damage and protects the efficiency of the system. End users can save up to 6% a year on energy bills
Prevent blockages in radiators A warmer home and quieter system
High powered internal magnet Proven technology that can capture up to 200g of magnetic debris
Cylindrical design Increased performance – better installation options
Twin-action – magnetic and non-magnetic filtration Instantly effective against a wide range of system debris
No power consumption or moving parts No electrical wiring connection or supply needed. Zero running costs and no failure of components
Can be installed under the boiler or away from the appliance Flexibility
One-way valve for adding system chemicals Removes the need to isolate a section of the system when carrying out servicing and maintenance
Worcester, Bosch Group specification and design Reliability of components and filter