There can be some interesting but often confusing names and terms associated with boilers and central heating systems. We’ve tried to list the most common ones here to make it a little easier for you.
However, if you are still struggling to understand something, feel free to get in touch with our experts at Arktek, we are here to help!
Just like your car needs to have a service to make sure the brakes are safe and to change the oil, a boiler needs to be serviced annually by a Gas Safe registered engineer, to make sure it is running safely and efficiently. It is also a requirement of the warranty to have an annual service.
Bleeding the radiators
Boiler SEDBUK efficiency
Carbon monoxide (CO)
Energy-related Products (ERP)
Gas Safe Accreditation
Integrally bunded tank
Plume management kit
Powerflush / System flush
Pressure Release Valve (PRV)
Pressure Top-up or Repressuring
Printed Circuit Board (PCB)
Radio Frequency Controls (RF)
A boiler designed to heat water only. The heated water is then circulated around the heating system by external pump, valves, and controls on the system.
A device that switches heating control equipment on and off according to the temperature set by the user. SEDBUK efficiency (see: boiler SEDBUK efficiency).
Sludge is the material that has settled to the bottom of a heating system (usually your radiators). It will make your heating system run less efficiently and can lead to boiler parts failing.
Old, non-condensing, or standard efficiency boilers can be as little as 60% efficient. Modern condensing boilers are over 90% efficient. Replacing an old boiler can help you make substantial savings on your gas bills.
A system boiler pumps hot water to the radiators and a sealed hot water storage cylinder. Most of the major components of the heating and hot water system, including the pump and expansion vessel, are built into the boiler, making installation easier, tidier and more efficient, and also simplifies servicing.
A filter can be fitted to your central heating system to protect it from sludge and rust that builds up over time. This debris can be harmful to your boiler and make your heating system less efficient. Filters come in different designs, including magnetic filters. Your installer will recommend the right filter for your system.
Thermostatic Radiator Valves (TRVs)
These are valves which can be connected to individual radiators to provide temperature control local to the radiator. The fitting of TRVs in a dwelling allows areas such as bedrooms to be maintained at a lower temperature than living areas or the bathroom. The higher the number selected on the TRV, the hotter the radiator and warmer the room.
A thermostat allows you to stipulate the temperature that your central heating system works to. It works by switching the central heating system on and off in order to meet your specific temperature requirements. For example, if the thermostat is set to 20 degrees then the thermostat will monitor the temperature in the air and if it drops to 19 degrees or lower, then your central heating will come on. Once the desired temperature is reached your central heating is then switched off.
A programmable room thermostats are popular as it allows you to stipulate different temperature settings at different times (this depends on the chosen device). For example, you could set your central heating to come on every morning at 7am for 2 hours and operating at 20 degrees, which then switched off throughout the day until 6pm when it will be switched back on ready when you come home.
Your warranty will give you total peace of mind and protection. It means all parts and labour costs are covered if your appliance ever needs repairing while the warranty is valid, subject to our terms and conditions.
Weather Compensation Control
Weather compensation control is an optional control available for modern boilers. It works by monitoring the temperature outside and using this information to help the boiler work as efficiently as possible.
Dividing the building into separate heating zones, each with independent time and temperature control.