Proven R290 Heat Pump Performance in Helsinki, Finland

In Northern Europe, heating systems face some of the toughest real-world conditions: freezing temperatures, high humidity, rapid weather changes, and long heating seasons.
A recent installation in Helsinki, Finland demonstrated how the Tongyi R290 air-to-water heat pump maintains strong and stable performance even when the environment pushes heat pumps to their limits.

Real Field Data — Finland, –3.4 °C and 98% Humidity

Testing conditions:

• Outdoor temp: –3.4 °C

• Humidity: 98%

• Dew point: –3.6 °C

• Setpoint: 35 °C

• Flow rate: 1186 L/h

• ΔT: 4.9 °C

• Power input: 1.55 kW

Using real-time readings from the installation:

• Heating capacity: 6.8 kW

• COP: 4.4

These results confirm excellent R290 heat pump performance in Finland, even under cold, wet, frost-prone conditions — the type of environment where many conventional heat pumps struggle.

Why Tongyi R290 Performs So Well in Cold Climates?

1. R290 Refrigerant with Wide Operating Envelope

Tongyi’s R290 platform is engineered for stable output from –25 °C up to +45 °C, maintaining high efficiency thanks to R290’s superior thermodynamic profile.
This allows the heat pump to deliver stable heating capacity in Nordic winters where air density and humidity complicate heat extraction.

2. High-Efficiency DC Inverter Compressor

The unit uses a next-generation twin-rotary DC inverter compressor optimized for R290.
Benefits include:

• Faster response to load changes

• Higher part-load efficiency

• Reduced vibration

• Lower energy consumption at mild winter temperatures

This is one reason the COP remains high even in real-world humidity levels close to saturation.

3. Intelligent Defrost Strategy

With 98% humidity, many heat pumps enter frequent or inefficient defrost cycles.
Tongyi’s R290 system uses:

• humidity-based sensors

• multi-parameter defrost prediction

• optimized coil temperature management

This prevents unnecessary defrosting and protects seasonal efficiency (SPF).

4. Optimised Hydraulics & Quiet Operation

The internal hydraulic system includes:

• high-performance water pump

• wide ΔT control

• optimized plate heat exchanger

Sound pressure levels can be as low as 46 dB(A) for residential models, ensuring silent operation even in dense urban areas.

5. Smart Connectivity & Two-Zone Control

Tongyi R290 units include built-in IoT, dual-zone control, cascade capability up to 8 units, and remote monitoring.
This makes them ideal for Northern Europe, where system optimisation directly affects winter energy bills.

📌 What This Test Means for Nordic Installers & Homeowners

This Helsinki installation confirms that Tongyi delivers high, reliable efficiency in real field conditions, not just in laboratory EN14825 test scenarios.
For projects requiring strong R290 heat pump performance Finland and across the Nordic region, Tongyi offers:

• Stable capacity at low temperatures

• High COP even with near-freezing humidity

• Reliable anti-frost behaviour

• Proven inverter modulation

• Low operating costs during long heating seasons

Tongyi continues to show that advanced engineering and thoughtful design translate into measurable, real-world performance across Europe.

If you are searching for a future-proof, efficient, and climate-ready heating solution, Tongyi R290 is ready for the challenge.

Residential Space Heating & Cooling

Real State / HVAC

Tongyi R290 TAHMV12S R