Repsol YPF

These devices maintain the degree of heat and even humidity, if they are designed to do so, at a specified level. Technology has brought many different types of thermostat: digital, analogue, mechanical, electronic, proportional, with one or more phases... Nowadays thermostats have an impeccable aesthetic design, are designed as easy-to-use ergonomic controls with electronics which are able to fully integrate with the machine they control.

In reality, these heating, tap, oven or air conditioning components can be as simple as a bi-metallic strip or as complex as a microprocessor. They are responsible for ensuring a certain level of comfort and efficiency. 

Programmable modulation
Using temperature modulation, thermostats will decide whether or not to turn devices on, thus helping to reduce the utility bills and leading to a significant saving in resources and reduction in CO2 emissions. In the case of heating, they turn the boiler on or off depending on the temperature in the room or rooms where the thermostats are placed.

Modern thermostats are programmable devices which are easy for the user to understand. Sometimes, homes have areas which are too hot due to their exposure to sunbeams, for example. By using a programmable thermostat with several sensors, you can automatically turn off the heating at night or when you are not using part or all of the house. In the summer, you can save money and switch off the air conditioning automatically at certain times or when the room has reached the desired temperature.

It is easy to save up to 10% a year in heating and air conditioning just by reducing the thermostat by the same proportion or programming it automatically, installing an automatic control or a programmable system to regulate the times when you wish to have the air conditioning system or heating on. In this way, the system works in line with a pre-selected timetable and at full capacity only where you tell it to and when the house or part of it is inhabited. 

Multiple instructions
Programmable digital thermostats allow you to schedule the temperature of the house degree by degree and virtually minute by minute. They can store and repeat time and temperature instructions several times a day and can be cancelled without affecting the rest of the daily or weekly scheduling. 

The most sophisticated versions enable the user to programme different temperatures for different times of day or of the week. Generally these devices are connected via electricity cables, although some of them are fitted with a radiofrequency system.

A chronothermostat is a device which regulates, controls and adjusts the power of the boiler depending on the room temperature, the desired temperature and the time. It combines a clock function and thermostat function in a single device. These latest generation mechanisms can save up to 3% more energy than a normal thermostat. The saving compared to a system without a thermostat may be as much as 20%.

Fitting radiators with thermostatic valves regulates the heat in each and every one of them. They deactivate those which are in rooms with greater solar radiation and activate those in north-facing rooms or those in the shade. 
Mechanisms such as these have the added benefit of being able to define different comfort temperatures in each room, this combining comfort and energy saving. These controls can be adapted to suit numerous configurations. Something as simple as a thermostat, be it electromechanical, electronic or digital, keeps energy costs under control and also helps household members feel comfortable.

It is important to install the thermostat far from heat sources such as a fireplace, light fittings, windows, televisions and heaters in order to avoid false readings. Correct functioning will mean that the air conditioning and heating systems will work more effectively.

The thermostatic sensors which maintain a consistent temperature are available in many different models. They are normally made up of a pressure gauge filled with a gas, liquid or thermosensitive wax.