Description
R290 Monoblock Heat Pump – High-Efficiency Air-to-Water System for Modern Heating
Why Choose an R290 Monoblock Heat Pump?
- Natural refrigerant (R290) with ultra-low GWP (~3)
- Monoblock design – no refrigerant handling on-site
- High efficiency (COP up to 5.3) at A7/W35
- Future-proof compliance with EU F-Gas regulation trends
- Quiet operation suitable for residential environments
Monoblock vs Split Heat Pump: Why Monoblock?
Unlike split systems, a monoblock heat pump integrates all refrigeration components in a single outdoor unit. This reduces installation complexity, avoids F-gas certification requirements for installers, and improves system reliability.
Technical Highlights of Tongyi R290 Monoblock Units
- Heating capacity range: 7 kW – 20 kW
- Sound pressure: from 46 dB(A)
- Operating range: down to -25°C
- Smart control: IoT + HEMS-ready
- Compatible with PV and battery systems
Applications
- Residential heating and cooling
- Retrofits replacing gas boilers
- New-build low-energy homes
- PV-integrated smart energy systems
Revolutionary and Innovative Features for Complete Control - Smart Control + Wifi
Supports Cascade System: Up to 8 units work together, sharing heating and hot water tasks.

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Tongyi heat pumps achieve the highest EU energy efficiency rating of A+++, saving you money on your energy bills.

FAQ – R290 Monoblock Heat Pump
Is an R290 monoblock heat pump safe?
Yes. Although R290 is flammable (A3), modern units are designed with strict safety standards and controlled refrigerant charge.
Do I need an F-gas certified installer?
No. Monoblock systems do not require refrigerant handling on-site.
Is R290 better than R32?
R290 has significantly lower environmental impact (GWP ~3 vs ~675 for R32) and is considered future-proof under EU regulations.
Can it work with solar panels?
Yes. Tongyi systems are designed for PV integration and smart energy management.
Discover the unique advantages that set us apart.
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Explore the mechanism of an Air-to-water heat pump's operation.
An air-to-water heat pump functions by absorbing the latent thermal energy present in the air, which serves as the primary heat source. Through a refrigeration cycle, the heat pump employs a compressor to increase the captured heat’s temperature and transfers it to a water-based system. This heated water can then be utilized for space heating, as well as domestic hot water production.































