Radiator sensors

Overview
Documents
Related products
FAQ
Videos

Danfoss radiator thermostats help people to obtain comfort in their homes. By maintaining constant desired room temperatures, individually or room by room, and by helping to reduce energy consumption.

They can save approximately 20% compared to a manually operated valve due to utilization of free heat gains and constant room temperature.

Robustly built and designed to meet the rigors of domestic life, we offer an extensive range of radiator thermostats that increase comfort and save energy.

Features and benefits

Ensures optimal comfort at home, room by room.

The world’s only radiator thermostat with gas-filled sensor: One of the secrets of the radiator thermostat’s service life of over 20 years is the gas charged, precision-manufactured sensors. Unlike other fillings, gas maintains a high regulating capacity and reactivity.

How does a radiator thermostat work?

See how a Danfoss radiator thermostat works

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Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type
Data sheet	Adapters for thermostatic sensors	Latvian	Multiple	09 Oct, 2014	313.8 KB	.pdf
Data sheet	Adapters for thermostatic sensors	English	Multiple	09 Oct, 2014	283.0 KB	.pdf
Data sheet	Adapters for thermostatic sensors	German	Multiple	02 Aug, 2017	234.2 KB	.pdf
Data sheet	Adapters for thermostatic sensors	Lithuanian	Multiple	26 Jan, 2005	338.8 KB	.pdf
Data sheet	Éléments thermostatiques RAE	French	Multiple	09 Jan, 2013	8.0 MB	.pdf
Data sheet	FJVR	Ukrainian	Ukraine	24 Dec, 2021	204.2 KB	.pdf
Data sheet	RA Plus & RA-K Plus programmable radiator thermostat	Latvian	Multiple	28 Mar, 2011	1.1 MB	.pdf
Data sheet	RAE thermostatic sensors	Latvian	Latvia	04 Oct, 2021	857.1 KB	.pdf
Data sheet	RAE thermostatic sensors	Czech	Multiple	08 Sep, 2014	1.3 MB	.pdf
Data sheet	RAE thermostatic sensors	Spanish, Castilian	Multiple	08 Sep, 2014	1.2 MB	.pdf
Data sheet	RAE thermostatic sensors	English	Multiple	08 Aug, 2014	1.3 MB	.pdf
Data sheet	RAE thermostatic sensors	Hungarian	Multiple	08 Sep, 2014	1.2 MB	.pdf
Data sheet	RAE thermostatic sensors	German	Multiple	13 Aug, 2020	1.4 MB	.pdf
Data sheet	RAE thermostatic sensors	Romanian, Moldavian, Moldovan	Multiple	08 Sep, 2014	1.3 MB	.pdf
Data sheet	RAE thermostatic sensors	Dutch, Flemish	Multiple	08 Sep, 2014	1.1 MB	.pdf
Data sheet	RAE thermostatic sensors	Italian	Multiple	27 Apr, 2011	566.0 KB	.pdf
Brochure	RAS-D2 Sales Leaflet	English	United Kingdom	11 Sep, 2014	580.8 KB	.pdf
Data sheet	Return temperature limiter type FJVR	Danish	Multiple	04 Jun, 2013	991.4 KB	.pdf
Data sheet	Return temperature limiter type FJVR	English	Multiple	04 Jun, 2013	678.2 KB	.pdf
Data sheet	Return temperature limiter type FJVR	Lithuanian	Multiple	07 Jun, 2013	1.0 MB	.pdf
Data sheet	Return temperature limiter type FJVR	Czech	Multiple	07 Jun, 2013	1.1 MB	.pdf
Data sheet	Return temperature limiter type FJVR	Romanian, Moldavian, Moldovan	Multiple	20 Jan, 2016	1.0 MB	.pdf
Data sheet	Return temperature limiter type FJVR	Swedish	Multiple	07 Jun, 2013	995.8 KB	.pdf
Data sheet	Return temperature limiter type FJVR	Latvian	Multiple	07 Jun, 2013	1.0 MB	.pdf
Data sheet	Return temperature limiter type FJVR	Slovak	Multiple	20 Jan, 2016	1.0 MB	.pdf
Data sheet	Return temperature limiter type FJVR	Serbian (RS)	Multiple	05 Nov, 2009	589.5 KB	.pdf
Data sheet	Return temperature limiter type FJVR	Polish	Multiple	04 Jan, 2016	1.0 MB	.pdf
Data sheet	Return temperature limiter type FJVR	German	Multiple	01 Sep, 2020	1.4 MB	.pdf
Data sheet	Thermostatic Sensors RAS-C & RAS-CK	English	Multiple	05 May, 2011	8.8 MB	.pdf
Data sheet	Thermostatic Sensors RAS-C & RAS-CK	Lithuanian	Multiple	20 May, 2016	306.2 KB	.pdf
Data sheet	Thermostatic Sensors RAS-C & RAS-CK	Latvian	Multiple	01 Sep, 2010	708.3 KB	.pdf
Data sheet	Thermostatic Sensors RAS-C & RAS-CK	Romanian, Moldavian, Moldovan	Multiple	16 Jul, 2015	501.2 KB	.pdf
Data sheet	Thermostatic Sensors RAS-C & RAS-CK	Estonian	Multiple	08 Nov, 2016	218.3 KB	.pdf

FAQ

How to save energy with using all radiators?

You save nothing by having one on full throttle and the others closed. In fact, a fully heated radiator will use more heat than 2 or 3 that are turned only a quarter of the up. This is especially true when you use district heating.

How to ventilate a room?

When ventilating a room, turn down your thermostat and leave the windows open for 5-6 minutes. If you don’t turn down your thermostat, it will react to the draft by heating up automatically.

What should be minimum temperature in a room?

Always maintain a minimum of 16 degrees in all rooms. Never go below 14 degrees; this might damage the building and cause dampness, condensation and mold.

How to use sleep mode?

Save energy and money by turning your radiators down 2-3 degrees at night. But remember: If you turn them down more than 3 degrees, the money you could save will be used on reheating the room again.

Videos

Recommended settings on your radiator thermostat

How Thermostatic Radiator Valves increase condensing boiler efficiency

Explanation of symbols on your radiator thermostat