Efficient Measurement Technology for Heat Pumps

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Challenges in Heat Pump Technology –
Why Precise Measurement Technology is Essential

Heat pumps are increasingly establishing themselves as a sustainable heating solution. They reduce CO₂ emissions, efficiently utilize environmental heat, and provide an alternative to fossil fuels. However, with rising demands for energy efficiency, durable system components, and the integration of refrigerants such as R290 (propane), manufacturers face new challenges:

The regulation of flow rate and system temperature must be precisely controlled to ensure a consistent heating output. Fluctuations in flow or inaccurate temperature measurements can not only reduce system efficiency but also put strain on components such as heat exchangers and compressors. At the same time, safety requirements are increasing—especially when working with flammable refrigerants.

SIKA provides precise measurement technology for heat pumps to address these challenges. Our solutions enable efficient heating circuit regulation, ensure reliable temperature monitoring, and maximize safety with early refrigerant detection.

Optimized Measurement Technology for Heat Pumps:
Efficiency, Safety, Durability

Precise Flow Measurement for Efficient Heating Circuit Regulation

Accurate flow measurement is crucial for the performance of a heat pump. SIKA’s VVX series Vortex flow sensors precisely measure flow and provide a flow-proportional output signal. The Low Delta p variant significantly reduces pressure loss, helping to lower the power consumption of the heating circuit pump—an essential factor for improving the COP (Coefficient of Performance) of the heat pump.

The VVX series is specifically designed for modern heat pump systems and delivers high measurement accuracy, even at low flow rates. Thanks to its compact design, the sensors can be easily integrated into tight installation spaces. They are specially tested for R290 systems and comply with IEC 60335-2-40 standards.

In addition, the sensors are robust against pressure peaks, which typically occur when filling the heating circuit. The maintenance-free design ensures long-term stability of the measured values —a decisive advantage for manufacturers who rely on durable and reliable components.

Find out more about flow measurment in heat pumps

Precise Temperature Monitoring
for Stable Heating Performance

The efficiency of a heat pump largely depends on precise temperature regulation. Excessive fluctuations in supply and return temperatures can reduce system performance and lead to unnecessary energy consumption.

SIKA temperature sensors are designed for demanding heating applications, ensuring fast and stable temperature detection. With short response times, these sensors enable precise control of heating performance, optimizing efficiency and system reliability.

Thanks to their compact design, SIKA temperature sensors can be easily integrated into heat pump systems. Their robust construction ensures long-term stability, even under extreme operating conditions. Digital interfaces such as Modbus or LIN bus simplify integration into modern control systems.

Find out more about smart temperature measurement in heat pumps now

Early Refrigerant Detection
for Maximum Safety

The use of natural refrigerants such as R290 (propane) imposes strict safety requirements on heat pump manufacturers. Reliable leak detection is essential to minimize risks, prevent damage, and comply with regulations.

SIKA offers the SKR290 and SKR454 gas sensors as a solution for detecting refrigerant leaks. Designed for HVAC applications, these sensors enable early leak detection, allowing operators to respond to system changes in time to ensure safety and compliance.

The easy integration via digital interfaces enables quick and seamless connection to existing control systems. This makes SIKA gas sensors a key contributor to enhanced safety, protecting both people and equipment, while supporting the sustainable implementation of R290 solutions in modern heat pumps.

Find out more now about heat pumps with R290 bubble and leakage detection

Measurement Technology for Heat Pump Systems from SIKA

Technology Leader in Precision Measurement for Heat Pumps
For over 65 years, SIKA has been developing and manufacturing measurement technology for heating and climate control applications. Our solutions are trusted worldwide and are integrated into heat pumps from leading manufacturers.

Future-Proof and Compatible with Modern Heat Pumps
SIKA sensors are specifically designed for use with R290 and other eco-friendly refrigerants, ensuring compliance with all relevant safety standards.

Tested Quality for Maximum Reliability
Each sensor undergoes a multi-stage calibration process and a 100% final test on a water test bench to ensure consistently high measurement accuracy.

Made in Germany – Quality That Pays Off
Our production takes place on fully automated lines in Germany, resulting in precise measurement technology with high availability and extremely low failure rates.

Higher Efficiency, Maximum Safety, Long-Lasting Solutions

With precise measurement technology for flow, temperature, and refrigerant monitoring, SIKA helps make heat pump systems more efficient, safer, and longer-lasting. Our technologies enable accurate heating circuit control, prevent unnecessary energy consumption, and ensure maximum operational safety - even when using flammable refrigerants like R290.