CENTRAL HEATING SYSTEMS
Where would we be in this day and age without our central heating system. Central heating can provide warmth to the whole house, a single room or simply provide hot water throughout the house. There are a number of central heating systems, but the two main types we deal with are, the Gas Combi Boiler System and the Conventional Boiler System. Gas boilers are generally more popular than electric boilers they are a cheaper form of energy and tend to be more efficient.
GAS COMBI BOILERS
A gas combi- or combination boiler is a single, compact unit that is a great space saving option. It is designed to provide both heating and hot water. It can provide hot water instantly eliminating the need for storage cylinders or tanks.
CONVENTIONAL BOILER SYSTEM
Conventional boiler system needs a hot water cylinder and cold-water tank and so require more space than the combi boiler. They can provide hot water to multiple taps at the same time. Although conventional boilers can send hot water to your radiators and a separate hot water cylinder for storage, they don’t provide hot water instantly so require a little pre-planning. Depending on the size of your cylinder you maybe be left without access to instant hot water.
WHEN THINGS GO WRONG
Unfortunately, regardless of what heating system you have sometimes things go wrong and break down. Below we will try to guide you on the most common reasons a boiler or central heating system might be struggling, and what you can do about it…
THE BOILER WON’T TURN ON – OR KEEPS TURNING OFF
You may simply need to reset your boiler by turning it off, leaving it for ten seconds, and turning it back on again. If this doesn’t work, check your pilot light.
If your pilot light keeps going out or won’t ignite at all, this could be down to certain variables, including:
Mains gas supply: always check your mains gas supply by testing your other gas appliances such as your cooker. If these don’t work, the problem is with your gas supply, not the boiler, and you’ll need to contact your gas supplier to rectify the problem.
Low water pressure: check the pressure on the pressure gauge; it should be between one and two bars of atmospheric pressure
Other problems that you could face with your central heating boiler system is the heating coming on, but perhaps being too hot. This could be a sign of a broken or faulty:
If the thermostat is faulty it won’t be able to ‘tell’ the boiler when to stop heating the water in the radiators, leading to an overheated room.
Radiators that are hot on the top and cold on the bottom are an indicator of rust and sludge in the radiators, and the system will require a flush through (or drain down).
‘Banging and clunking’ can also be a sign of this, although a noisy central heating system can also indicate trapped air.
Radiators that are cold on the top and hot on the bottom are a definite indication of air in the system, as the air traps the hot water and prevents it from travelling to the top. Try bleeding your radiators to see if this resolves the problem.
WHEN IT’S TIME TO CALL THE EXPERTS IN…
If you have tried to fix your central heating boiler system yourself to no avail, or if it’s a problem that requires expertise, then why not give ACR Plumbing and Heating a call? We have over 30 years’ experience in the industry and guarantee 100% customer satisfaction 100% of the time.