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Wireless Radio Thermostat
Filtrete CT30

The CT30's versatility impressed Wired, who thought it was very convenient to be able to control it remotely from a computer or smartphone. However, the web management app is fiddly to use, …

1 review



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Thermostats control temperature automatically so that regular adjustments to radiators are unnecessary. Usually they offer at least a day and a night setting, while comfort thermostats also offer special settings for mornings or evenings, taking room- or weather-dependent outdoor temperatures as a reference value.

Heating accounts for the largest share of domestic energy consumption. Proper use of heat, however, can save large amounts of energy, without which we would freeze. A thermostat, which is a temperature-sensitive switch that keeps the temperature constant, can be very helpful. Depending on the ambient temperature, the thermostat will guarantee a lower or higher temperature flow rate with the help of electronic or mechanical circuits when the desired room temperature has previously been selected and set. There are several kinds of thermostats, depending on their measuring point or the device that they control. Some of the thermostats that get their name from the device they control are the boiler thermostat, the heater thermostat or the flow valve thermostat, which is mounted on a radiator. The latter allows the temperature to be regulated individually for each room. Depending on the location of the measuring point, i.e., the place where the temperature is measured, a distinction between external and internal thermostats can be made. An outdoor thermostat is the part of the heating system which controls the temperature at which the hot water should come out of the burner. At low temperatures, a higher temperature flow is produced. This allows for the burner's running time - the time in which it heats the radiators – to be optimized. For most thermostats it is possible to lower the temperature with a day/night timer, therefore reducing unnecessary heating and also unnecessary costs.