Your school's thermostatic control is very poor. Fixing thermostatic control issues can be difficult, but it can make a school more comfortable and save money.

The Problem
Your school's thermostatic control is 0.14. An average value for schools is 0.62 and a perfect value is 1.0. The lower the value below 1.0, the worse the school's thermostatic control.

Why is good thermostatic control important?
A building with good thermostatic control means: 
  • The heating system brings the temperature of the building up to the set temperature, and then maintains it at a constant level. 
  • The heating required and therefore gas consumption varies depending on how cold it is outside. 
  • The heating system can also adjust for extra heat given out by people, electrical equipment and sunshine warming the building. 

Poor thermostatic control means:
  • Teachers and pupils often feel too hot or too cold. 
  • It often causes excessive gas consumption as teachers and pupils maintain a comfortable temperature by leaving windows open.

Causes of poor thermostatic control
  • Poorly located boiler thermostats. A common location for a thermostat in schools is in the school hall or entrance lobby whose heat levels are not representative of the building as a whole, and particularly classrooms. Halls are often poorly insulated with few radiators which means they never get up to temperature, causing the boiler controller to run the boiler constantly which causes the better insulated classrooms to overheat.
  • A lack of radiator thermostats in individual rooms, which leads to windows being opened to compensate.

What you should do
  • Make sure all your radiators have working thermostatic control valves fitted, so you can adjust classroom temperatures without opening windows and doors.
  • Run a campaign to get everyone in the school to understand the importance of turning off radiators before you open windows and doors.
  • Try moving your main boiler thermostat to a different location such as the school office or a classroom.