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With the winter season quickly approaching, central heating for your home becomes a priority.  In order to keep your home warm, all components of your central heating system must be in proper working order.

 

However, there are some typical faults with the system that tend to happen at the worst possible time. One such common problem is frost damage, which can damage and sometimes destroy boilers and pipes.

In previous years, the central heating system was designed with the frost thermostat located near the boiler.  Its job was to start the boiler when the air temperature dropped and stop the boiler when the air temperature reached an acceptable level. 

 

If the thermostat detected excessive heat escaping from the boiler or surrounding pipes it quickly turned off the system, in order to conserve energy and prevent excessive heating of the home.

In recent years, the boiler and nearby pipes have been insulated much better (thus effectively saving energy) that the frost thermostat can no longer effectively

determine when the air temperature has reached the requested degree. This can prove to be problematic, as it may lead to overheating.

The pipe thermostat is one solution. 

 

The product is installed on the boiler return pipe.  This thermostat detects changes in pipe temperature and prevents overheating by shutting off the system when necessary. 

 

There are several UK companies that sell the frost thermostat and low limit pipe thermostat together in one kit.  These products allow you to adjust room temperature and provide frost protection for your boilers and pipes.

The new thermostats are easy to install and set up. 

Complete installation and wiring guidelines are all contained in one box making it simple for the installer. 

 

The frost thermostat is set to a typical temperature of 5C and the pipe thermostat is put to a typical temperature of 25C.  Extra frost thermostats can also be installed to provide complete defence, if the pipes are exposed further around the property (e.g. in a shed, in a garage etc.).

If the pipe thermostat fails to meet your needs, there are other solutions.  A fully programmable room thermostat is one option.

These devices can be installed in a number of locations throughout your home, usually in a living room or bedroom. 

 

Their job is to measure and monitor the temperature of the room. 

 

The thermostat can be set to change the room temperature several times a day, depending on the homeowner's needs.  There are several kits that operate by means of radio signal, from the thermostat to the boiler. 

 

These Radio Frequency (RF) thermostats require no wiring, which makes them very easy to install.

 

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• Institute of Plumbers
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