Thermostat - Revision history

Designing Buildings at 07:59, 31 January 2025

2025-01-31T07:59:29Z

← Older revision		Revision as of 07:59, 31 January 2025
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	* The future of heat.		* The future of heat.
	* Thermal comfort.		* Thermal comfort.
		+	* Thermostatic radiator valve.
	* Types of heating system.		* Types of heating system.
	* Ultrasonic meter.		* Ultrasonic meter.

	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Standards_/_measurements]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Standards_/_measurements]] [[Category:Products_/_components]]

Designing Buildings at 06:36, 26 July 2023

2023-07-26T06:36:03Z

← Older revision		Revision as of 06:36, 26 July 2023
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	NB New regulations mean that from June 2022, heating installers are required to install thermostatic room controls when replacing a boiler.		NB New regulations mean that from June 2022, heating installers are required to install thermostatic room controls when replacing a boiler.
		+
		+	NB [https://www.bsria.com/uk/product/DJLLPr/guide_to_controls_bg832023_a15d25e1/ Guide to Controls (BG 83/2023)] written by John Marrow and published by BSRIA in June 2023, defines a thermostat as: ‘An independent temperature switching device which enables users to manually adjust a setpoint temperature for heating or cooling.’

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Designing Buildings at 05:33, 27 May 2022

2022-05-27T05:33:20Z

← Older revision		Revision as of 05:33, 27 May 2022
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	More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.		More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.

−	NB New regulations mean that from June 2022, heating installers ~~will be~~ required to install thermostatic room controls when replacing a boiler.	+	NB New regulations mean that from June 2022, heating installers are required to install thermostatic room controls when replacing a boiler.

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Designing Buildings at 05:31, 27 May 2022

2022-05-27T05:31:15Z

← Older revision		Revision as of 05:31, 27 May 2022
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	More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.		More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	NB New regulations mean that from June 2022, heating installers will be required to install thermostatic room controls when replacing a boiler.
		+
		+	= Related articles on Designing Buildings =

	* Boiler.		* Boiler.

Editor at 15:05, 26 April 2021

2021-04-26T15:05:54Z

← Older revision		Revision as of 15:05, 26 April 2021
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	More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.		More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Boiler.		* Boiler.
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	* Heat meter.		* Heat meter.
	* Heating system.		* Heating system.
		+	* Humidistat.
	* Internet of things.		* Internet of things.
	* Set point.		* Set point.

Designing Buildings at 08:53, 7 December 2020

2020-12-07T08:53:43Z

← Older revision		Revision as of 08:53, 7 December 2020
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	* Ultrasonic meter.		* Ultrasonic meter.

−	[[Category:~~Standards_/_measurements~~]] [[Category:~~DCN_Standard~~]] [[Category:~~Products_~~/~~_components~~]] [[Category:~~DCN_Product_Knowledge~~]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Standards_/_measurements]] [[Category:Products_/_components]]

Designing Buildings at 09:05, 4 April 2018

2018-04-04T09:05:21Z

← Older revision		Revision as of 09:05, 4 April 2018
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	{\|		{\|
−	\| [[File:~~Smart thermostat~~.JPG]]	+	\| [[File:Smart_thermostat.JPG\|link=File:Smart_thermostat.JPG]]
−	\| [[File:~~Thermostatic radiator valve~~.JPG]]	+	\| [[File:Thermostatic_radiator_valve.JPG\|link=File:Thermostatic_radiator_valve.JPG]]
	\|-		\|-
	\| Smart thermostat		\| Smart thermostat
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	A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.		A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.
		+
		+	It is derived from the Greek words 'thermos' (meaning hot or heat) and 'stat' (meaning standing or stationary).

	A thermostat works as a ‘closed loop’ control system, which is one in which the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature.		A thermostat works as a ‘closed loop’ control system, which is one in which the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature.
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	* Ultrasonic meter.		* Ultrasonic meter.

−	[[Category:Standards_/_measurements]] [[Category:Products_/_components]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Designing Buildings at 08:50, 4 April 2018

2018-04-04T08:50:22Z

← Older revision		Revision as of 08:50, 4 April 2018
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		+	{\|
		+	\| [[File:Smart thermostat.JPG]]
		+	\| [[File:Thermostatic radiator valve.JPG]]
		+	\|-
		+	\| Smart thermostat
		+	\| Thermostatic radiator valve (TRV)
		+	\|}
		+
	A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.		A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.

Designing Buildings at 08:34, 4 April 2018

2018-04-04T08:34:59Z

← Older revision		Revision as of 08:34, 4 April 2018
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	A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.		A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.

−	A thermostat works as a ‘closed loop’ control system, which is one ~~where~~ the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature.	+	A thermostat works as a ‘closed loop’ control system, which is one in which the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature.
−		+
−	~~An automotive thermostat is one that combines the sensing and control action elements of a controlled system~~.	+

	Common types of thermostat use bimetallic strips or gas-filled bellows.		Common types of thermostat use bimetallic strips or gas-filled bellows.

−	A bimetallic strip consists of two pieces of different types of metal fixed together into a strip forming a bridge in an electrical circuit connected to a heating or cooling system. As the strip changes temperature, the two metals expand of contract differentially, bending or straightening the strip slightly and eventually breaking or closing the circuit and so activating or deactivating the heating or cooling system. A drawback of bimetallic strips is that they ~~are~~ slow to react to changes in temperature.	+	A bimetallic strip consists of two pieces of different types of metal fixed together into a strip forming a bridge in an electrical circuit connected to a heating or cooling system. As the strip changes temperature, the two metals expand or contract differentially, bending or straightening the strip slightly and eventually breaking or closing the circuit and so activating or deactivating the heating or cooling system. A drawback of bimetallic strips is that they can be relatively slow to react to changes in temperature.
		+
		+	Gas-filled bellows are enclosed by a pair of metal discs. The gas in the bellows expands as temperature increases, forcing the discs apart and switching off the system. This type of thermostat is typically faster to react than a bimetallic strip thermostat.

−	~~Gas-filled bellows are enclosed by a pair~~ of ~~metal discs~~. ~~The gas in~~ the ~~bellow expands as temperature increases~~, ~~forcing~~ the ~~discs apart and switching off~~ the ~~electric circuit~~. ~~This type of thermostat~~ is typically ~~faster to react than~~ a ~~bimetallic strip~~ thermostat.	+	Thermostats may operate independently, or as part of a more complex system. For example, Most domestic radiators will include a thermostatic radiator valve which gives local control over the amount of hot water that is allowed into the radiator. In addition, the boiler may have controls allowing the output water temperature from the boiler to be adjusted. There is then, typically a central thermostat that allows occupants to regulate the temperature of a building or part of it as a whole.

	Some thermostats may be connected to other control systems such as timer devices, or more complex Building Automation and Control Systems (BACS).		Some thermostats may be connected to other control systems such as timer devices, or more complex Building Automation and Control Systems (BACS).

−	More recently, there has been an increase in popularity of ~~the~~ 'smart' thermostats which ~~allows~~ a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn on the heating at a certain ~~time~~, and some models can ‘intelligently’ learn about the building and how long ~~they take~~ to heat, as well as the preferences/habits of the occupants ~~in order to~~ use energy more efficiently.	+	More recently, there has been an increase in the popularity of 'smart' thermostats which allow a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn the heating on or off at certain times, and some models can ‘intelligently’ learn about the building and how long is takes to heat up or cool down, as well as the preferences and habits of the occupants. This can help use energy more efficiently.

	= Find out more =		= Find out more =

Designing Buildings at 08:24, 4 April 2018

2018-04-04T08:24:20Z

← Older revision		Revision as of 08:24, 4 April 2018
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−	A thermostat is a ~~common~~ component ~~used as~~ part of a building’s ~~electrical control system to~~ maintain a steady temperature. It does this by sensing the temperature of a system and adjusting ~~it so as~~ to achieve ~~the~~ required set point ~~– chosen by the occupant via a dial or digital display~~. Thermostats are used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.	+	A thermostat is a component that forms part of a building’s controls, helping maintain a steady, pre-determined temperature. It does this by sensing the temperature of a system and adjusting the heating or cooling input to achieve a required set point. Thermostats are commonly used in central heating, air conditioning, HVAC system, water heaters, as well as devices such as fridges and ovens.

−	A thermostat works as a ‘closed loop’ control system, which is one where the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature	+	A thermostat works as a ‘closed loop’ control system, which is one where the output has an effect upon the input to maintain a desired output value. It achieves this by providing a feedback loop. For example, a boiler may have a temperature thermostat which monitors the thermal comfort level of a building and sends a feedback signal to ensure the controller maintains the set temperature.

−	An automotive thermostat is one that combines the sensing and ~~the~~ control action ~~element~~ of a controlled system.	+	An automotive thermostat is one that combines the sensing and control action elements of a controlled system.

−	~~The two most common~~ types of thermostat use bimetallic strips ~~and~~ gas-filled bellows.	+	Common types of thermostat use bimetallic strips or gas-filled bellows.

−	A bimetallic strip is two pieces of different ~~metals bolted~~ together ~~to work as~~ a bridge in an electrical circuit ~~which is~~ connected to ~~the~~ heating system. As the strip ~~gets hot~~, ~~one of~~ the metals ~~expands~~, bending the strip slightly and eventually breaking ~~open~~ the circuit~~. When this happens, the electricity stops, as does the heating,~~ and ~~the room cools. As the room cools~~ so ~~does the strip, which then returns to its original shape and forms the circuit again, switching~~ the heating ~~back on~~. A ~~building occupant, by adjusting the thermostat dial, can control the~~ temperature ~~at which the circuit switches on and off~~.	+	A bimetallic strip consists of two pieces of different types of metal fixed together into a strip forming a bridge in an electrical circuit connected to a heating or cooling system. As the strip changes temperature, the two metals expand of contract differentially, bending or straightening the strip slightly and eventually breaking or closing the circuit and so activating or deactivating the heating or cooling system. A drawback of bimetallic strips is that they are slow to react to changes in temperature.

−	~~However, a drawback of bimetallic strips is that they are slow to react to changes in temperature.~~ Gas-filled bellows ~~comprise~~ a pair of metal discs ~~which, owing to their larger surface area, react quickly to heat and so can change more quickly~~. The gas in the bellow expands as ~~the room~~ temperature increases, ~~thereby~~ forcing the discs apart and switching off the electric circuit~~, allowing the temperature~~ to ~~cool~~.	+	Gas-filled bellows are enclosed by a pair of metal discs. The gas in the bellow expands as temperature increases, forcing the discs apart and switching off the electric circuit. This type of thermostat is typically faster to react than a bimetallic strip thermostat.

−	~~There is also the~~ increase in popularity of the smart ~~thermostat~~ which allows a building’s temperature to be controlled remotely using a smartphone or tablet device. Users can programme the thermostat to turn on the heating at a certain time, and some models can ‘intelligently’ learn about the building and how long they take to heat, as well as the preferences/habits of the occupants ~~and~~ use energy more efficiently.	+	Some thermostats may be connected to other control systems such as timer devices, or more complex Building Automation and Control Systems (BACS).
		+
		+	More recently, there has been an increase in popularity of the 'smart' thermostats which allows a building’s temperature to be controlled remotely using a smartphone, tablet or other device. Users can programme the thermostat to turn on the heating at a certain time, and some models can ‘intelligently’ learn about the building and how long they take to heat, as well as the preferences/habits of the occupants in order to use energy more efficiently.

	= Find out more =		= Find out more =