Measured Efficiency Levels of the Hoval Belaria pro Commercial Heat Pump

Efficiency figures are often quoted in isolation. For consultants, what matters is how those figures translate into seasonal performance, winter reliability and real world system behaviour.

The Hoval Belaria pro provides transparent performance data under recognised European standards, allowing accurate modelling and confident specification.

Heat pump efficiency affects far more than operating cost.

It influences:

• Part L compliance

• EPC ratings

• Carbon reporting

• Electrical infrastructure sizing

• Long term operational expenditure

Seasonal performance, not just peak laboratory results, determines the true value of a commercial heat pump installation.

Under moderate climate conditions, the Belaria pro achieves:

Seasonal Coefficient of Performance SCOP at 35°C / 55°C:

• 5.7 / 4.2 (20 and 25 kW models)

• 5.1 / 3.9 (40 kW model)

• 5.3 / 4.1 (50 kW model)

Seasonal space heating efficiency ηS at 35°C / 55°C:

• Up to 225 percent / 165 percent

All models achieve energy efficiency class A+++ at both low temperature and medium temperature conditions.

For designers, this demonstrates strong seasonal performance in both new build low temperature systems and retrofit radiator based applications.

UK winter performance is critical.

At A-7W35 conditions, the Belaria pro maintains strong heating capacity:

• Up to 22.1 kW maximum output (25 kW model)

• Up to 44.2 kW maximum output (50 kW model)

The reduction in output between A2 and A-7 is modest, indicating stable capacity during cold weather conditions.

This supports accurate peak load assessment without excessive oversizing.

At A2W35, the heat output range spans:

• 11.8 kW minimum

• Up to 48.0 kW maximum depending on model

The inverter driven compressor continuously adjusts output to match building demand.

This delivers:

• Reduced cycling losses

• Improved seasonal efficiency

• Lower electrical demand fluctuations

• More stable internal temperatures

In real buildings, part load behaviour has a greater impact on annual efficiency than peak output figures alone.

The Belaria pro can deliver flow temperatures up to 70°C at outdoor temperatures down to -10°C.

This makes it suitable for:

• Radiator based refurbishment projects

• Domestic hot water production

• Hybrid systems

• Phased decarbonisation strategies

Many retrofit projects are constrained by emitter temperatures. The 70°C capability broadens application suitability without sacrificing efficiency at lower flow temperatures.

The Belaria pro uses R290 propane refrigerant.

R290 offers:

• Very low global warming potential

• Strong thermodynamic performance

• Excellent low temperature capability

This contributes to high seasonal efficiency while supporting long term regulatory resilience and sustainability objectives.

Available in 20, 25, 40 and 50 kW models, the Belaria pro can be cascaded to deliver system outputs up to 200 kW.

This allows:

• Fine load matching

• Reduced oversizing

• Built in redundancy

• Higher seasonal efficiency across varying loads

For larger residential and commercial buildings, modular cascading improves both performance stability and operational flexibility.

The Belaria pro is designed as part of a complete solution, including:

• Heat pump optimised buffer storage

• Domestic water modules

• Heating and cooling distribution

• Integrated control systems with remote access

For consultants and installers, this reduces interface risk and simplifies commissioning.