Danfoss radiator thermostat still going strong at 75

Danfoss chairman of the board Jorgen Mads Clausen, left, shows off his father’s original radiator thermostat.
September 13, 2018

The original Danfoss radiator thermostat might be turning 75, but the company says the product invented by its founder Mads Clausen way back in 1943 is as relevant as ever in a world trying to control the temperature.

More than 350 million of the radiator thermostats have rolled off the production lines and been sent to all corners of the world since the 1940s, and that figure continues to rise.

”The first prototype of the world’s first radiator thermostat was tested in my father’s office,” said Jorgen Mads Clausen, now chairman of the board at Danfoss. ”It was the birth of the world’s first thermostatic valve for controlling the temperature in a room. The actual marketing began in 1952, when the radiator thermostat was launched as a device that saves money and makes centrally heated rooms more comfortable, and from there on it just took off.”

Anders Barkholt, vice-presidnet of Danfoss Radiator Thermostats, added, ”It is a strength for Danfoss to have been on the market for so many years, and there is an abundance of Danfoss DNA and cultural heritage in even our brand-new electronic thermostats.”