The options for adjusting the heating system can be different. One of the easiest ways is to control heat consumption mechanically by installing manually adjustable radiator valves. In this case, the water supply to the radiator can be completely or partially closed, but it is impossible to set the desired room temperature exactly.

The second option is to install thermostats. They react quickly to temperature changes, so they use energy and heat efficiently. The body of the controller valve is designed to be mounted at the radiator inlet, considering the direction of water flow. The required temperature in the rooms is set by turning the tuning scale of the thermostat.

Another measure to increase the energy efficiency of the heating system is its balancing. The purpose of balancing the heating system is to allow the water to be distributed between the radiators in such a way that each radiator receives the calculated flow and temperature. Balancing is done by dividing the water between:

• radiators,
• mains and risers,
• various heating loops.

If the heating system is not balanced, individual radiators receive too much flow, the power of these radiators is too high and the room temperature is too high. At the same time, other radiators receive too little flow, as a result of which they have a lower heat output and a lower temperature in the rooms.

Heating systems equipped with thermostats are partially balanced, but these valves can be in such poor condition that the system needs to be balanced to operate energy efficiently. Advantages of thermostats:

• They are easily adjustable and maintain a constant temperature in the room.
• They contribute to a better distribution of water flow in the system, as they balance oversized radiators to a certain extent, different use of rooms, and a generally unbalanced system.
• Reduced thermal energy losses during room ventilation, even without closing the thermostatic valve.