Why You Must Recalibrate or Replace Your Heat Meter Every 10 Years

Under the Renewable Heat Incentive (RHI) scheme, Ofgem requires all participants to recalibrate or replace their heat meters every 10 years, or sooner if specified by the manufacturer. This rule ensures:

• Accurate measurement of renewable heat output, which directly affects your quarterly RHI payments.

• Compliance with EN1434 Class 2 accuracy standards, as heat meters can drift over time due to wear, environmental conditions, or component degradation.

• Avoidance of penalties or payment suspension, non-compliance can lead to withheld payments or disqualification from the scheme.

Most participants opt to replace rather than recalibrate, as recalibration often involves shipping meters to accredited labs, which can be costly and time-consuming.

Why the Sontex Supercal 5 Is the Ideal Replacement Meter

The Sontex Supercal 5 stands out as a future-proof, high-performance heat meter that meets RHI compliance and offers several key advantages:

1. Glycol Tolerance

• Designed to handle cooling liquids, including glycols, making it suitable for a wide range of heating and cooling systems, including those using antifreeze mixtures.

2. Long Battery Life

• Comes with the option of standard battery life of 11+1 years or Mains powered, and can be extended with optional power modules (24V or 230V mains)

• This reduces maintenance frequency and ensures reliable operation over the meter’s lifespan.

3. Advanced Communication Outputs

• Supports LoRaWAN, Wireless M-Bus, BACnet, Modbus, and M-Bus, making it highly adaptable for remote monitoring and integration into smart energy systems.      

• Ideal for district heating networks, industrial installations, and smart building applications.

4. Modular and User-Friendly Design

• Features NFC configuration, a large, illuminated display, and customisable data logging for easy setup and diagnostics.

• Modules can be retrofitted or replaced without affecting MID approval, offering flexibility for future upgrades.

Final Thoughts

Replacing your heat meter with a Sontex Supercal 5 ensures:

• Continued eligibility for RHI payments.

• Accurate and reliable heat measurement.

• Seamless integration into modern energy systems.

Buy the Supercal 5 here!