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What is a thermostat?
A thermostat is a switch that operates (opens or closes) depending on the temperature.
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What Are Thermostats Used For In Central Heating Systems?
Central heating systems use thermostats to:
· Turn the central heating system on and off.
· Turn the heating on and off in areas of a house (zone control).
· Turn individual radiators on and off.
What Do Thermostats Look Like?
There are 2 main types of thermostat that control central heating systems – digital and analogue. Digital thermostats use LCD displays; analogue thermostats use dials.
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The diagram on the left shows a thermostat.
The temperature control dial sets the temperature the switch closes and opens.
The switch can, say, turn a fan or central heating system on or off.
Thermostats have many uses. Many different machines use thermostats.
Car engines use thermostats to direct coolant to different parts of the engine. |
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The image on the left shows a digital thermostat.
The image on the right shows an analogue thermostat.
Either thermostat can control central heating systems or parts of a central heating system (zone control).
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The digital thermostat (above left) costs about £25 (UK), the analogue thermostat (above right) costs about £20 (UK).
The image below shows a thermostat that controls an individual radiator.
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The thermostat fits to a radiator to turn the radiator on and off depending on the temperature.
The thermostat uses numbers (1 to 6) to set the temperature the radiator turns on and off.
The temperature control is not in degrees (Centigrade or Fahrenheit) as that level of control is not needed; a rough indication (numbers 1 to 6) is OK.
Individual room temperatures can be set by adjusting the thermostat on individual radiators.
A radiator thermostat costs about £10 (UK).
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This web page describes what a thermostat is, what central heating system thermostats are used for and shows what central heating thermostats look like.
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Thermostats |
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Links
Contact Judge Electrical for free central heating advice
Central Heating Problems – Advice & Help – main Judge Electrical central heating help and advice page.
Central Heating Troubleshooting Tips – series of short tips to help solve central heating problems.
Hot Radiators Upstairs But Not Downstairs – advice & help to solve this problem.
Central Heating Boilers – Information about central heating boilers.
Central Heating Boiler Problems – Advice & Help – advice and help on solving common central heating boiler problems.
Central Heating Timers Problems – Advice & Help – advice and help on solving common central heating timer problems.
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