Pressure gauges in underfloor heating and central heating systems

In central heating systems, as well as in underfloor heating systems, pressure gauges are always utilized. They are essential for monitoring and maintaining the heating systems. Pressure levels within the systems are measured and indicated by gauges. Additionally, when purging air from underfloor heating systems and CV installations, a pressure gauge comes in handy: by measuring the pressure, one can determine if there is air present in the system and subsequently perform air-purging procedures.

Underfloor heating

Underfloor heating systems often consist of a primary and a secondary loop. The gauge in the primary circuit measures the pressure of the circulating heating water that travels from the heat source (such as a boiler or a heat pump) to the distribution system of the underfloor heating. This pressure must be correct for efficient heat transfer to the floor surfaces.

The secondary circuit includes the piping located beneath the floor, where the warm water flows to heat the space. A gauge in this part of the system measures the pressure in the underfloor heating system itself. Consistent pressure is crucial for uniform floor heating.

Underfloor heating systems often incorporate an expansion tank to absorb pressure variations caused by temperature fluctuations in the system. The pressure in the expansion tank is monitored by a pressure gauge to ensure proper functioning and prevent potential issues.

Central heating systems

Pressure gauges also play an essential role in monitoring and maintaining central heating installations. They are used in various components:

• Pressure measurement in the heating system itself: This includes the circulation of heating water from the boiler to the radiators or convectors in different rooms.
• Boiler pressure: Monitoring the pressure of the water flowing through the boiler is crucial to ensure that the boiler operates efficiently and delivers hot water to the radiators at the correct pressure.
• Pressure reduction valve: Central heating systems may contain pressure reduction valves to regulate pressure and prevent it from reaching levels harmful to the system. The pressure gauge indicates the pressure before and after the pressure reduction valve.
• Expansion tank pressure: Central heating systems also use an expansion tank to absorb pressure variations. A pressure gauge monitors the pressure in the tank.

Contact us

To learn more about pressure gauges in heating systems, feel free to contact EMVO Techniek. We are happy to provide tailored advice. Call us today at +31(0)413-473037 or send us an email, and we will respond as soon as possible!