Overview
The Thermovo R290 series represents the pinnacle of eco-friendly heating technology. Using R290 (propane) as refrigerant with an ultra-low Global Warming Potential (GWP < 3), these units deliver exceptional performance while minimizing environmental impact.
Is it right for your home?
A strong option for homeowners planning a low-carbon heating upgrade, especially in well-insulated homes or carefully assessed radiator retrofits.
Key Features
- R290 Natural Refrigerant (GWP < 3)
- A+++ Energy Rating
- SCOP up to 5.2
- Heating capacity 4-16kW
- WiFi Smart Control
- Compatible with solar PV
Where it can work well
- New-build homes with underfloor heating
- Low-carbon retrofit projects using radiators
- Domestic hot water and space heating systems
- Projects targeting low-GWP refrigerant compliance
Technical Specifications
Compare the individual models and choose the capacity for your project.
View model comparison →Before you choose
Final suitability, installation requirements and available documentation should be confirmed with a qualified installer for your home and country.
Compare models and technical specifications
Select the models you want to compare. Values come from the product parameter sheet; a dash means no value was listed for that model.
R290 monoblock
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| Parameter | Unit | ThN-6 Ask about this model | ThN-9 Ask about this model | ThN-12 Ask about this model | ThN-15 Ask about this model | ThN-18 Ask about this model | ThN-22 Ask about this model |
|---|---|---|---|---|---|---|---|
| Power Supply | V/Ph | 220V/1ph | 220V/1ph | 220V/1ph | 220V/1ph | 380V/3ph | 380V/3ph |
| Heating CapacityHeating(A7/6⁰C,W30/35⁰C) | kw | 2.15~6.12 | 2.18~9.21 | 3.62~12.4 | 4.35~14.92 | 5.24~18 | 6.40~22.83 |
| Power InputHeating(A7/6⁰C,W30/35⁰C) | kw | 0.31~1.30 | 0.32~1.92 | 0.59~2.89 | 0.72~3.5 | 0.89~3.99 | 1.17~5.32 |
| COPHeating(A7/6⁰C,W30/35⁰C) | W/W | 6.94~4.71 | 6.81~4.8 | 6.14~4.29 | 6.04~4.26 | 5.89~4.51 | 5.47~4.29 |
| Heating CapacityHeating(A7/6⁰C,W47/55⁰C) | kw | 2.03~5.79 | 2.06~8.71 | 3.42~11.73 | 4.11~14.11 | 5.09~17.46 | 6.21~22.14 |
| Power InputHeating(A7/6⁰C,W47/55⁰C) | kw | 0.42~1.81 | 0.42~2.66 | 0.78~4.02 | 0.95~4.86 | 1.18~5.78 | 1.47~7.48 |
| COPHeating(A7/6⁰C,W47/55⁰C) | W/W | 4.83~3.2 | 4.90~3.27 | 4.38~2.92 | 4.33~2.90 | 4.31~3.02 | 4.22~2.96 |
| Cooling CapacityCooling(A35/24⁰C,W12/7⁰C) | kw | 1.71~4.85 | 2.60~7.37 | 3.50~9.92 | 3.92~12.0 | 4.04~12.37 | 4.44~13.6 |
| Power InputCooling(A35/24⁰C,W12/7⁰C) | kw | 0.42~1.44 | 0.68~2.36 | 0.96~3.42 | 1.02~3.81 | 1.23~4.60 | 1.36~5.19 |
| EERCooling(A35/24⁰C,W12/7⁰C) | W/W | 4.07~3.37 | 3.82~3.12 | 3.64~2.89 | 3.84~3.15 | 3.28~2.69 | 3.26~2.62 |
| ERP Level(35⁰C) | / | A+++ | A+++ | A+++ | A+++ | A+++ | A+++ |
| ERP Level(55⁰C) | / | A++ | A++ | A++ | A++ | A++ | A++ |
| Rated water flow | m3/h | 1.032 | 1.72 | 2.064 | 2.58 | 3.17 | 3.87 |
| MAX input power | kw | 2.5 | 5.01 | 5.01 | 5.13 | 6.12 | 6.12 |
| MAX input current | A | 9.5 | 19 | 19 | 23 | 26.5 | 26.5 |
| Sound power Level | dB(A) | 42 | 42 | 45 | 47 | 49 | 50 |
| Motor type of outdoor unit | / | DC fan motor | DC fan motor | DC fan motor | DC fan motor | DC fan motor | DC fan motor |
| Number of fan | / | 1 | 1 | 1 | 1 | 2 | 2 |
| Compressor | / | Highly/Twin Rotary | Highly/Twin Rotary | Highly/Twin Rotary | Highly/Twin Rotary | Highly/Twin Rotary | Highly/Twin Rotary |
| Water Pump | / | SHIMGE/Inverter/Built-in | SHIMGE/Inverter/Built-in | SHIMGE/Inverter/Built-in | SHIMGE/Inverter/Built-in | SHIMGE/Inverter/Built-in | SHIMGE/Inverter/Built-in |
| Air side heat exchanger | / | Finned tube | Finned tube | Finned tube | Finned tube | Finned tube | Finned tube |
| Water side heat exchanger | / | Danfoss | Danfoss | Danfoss | Danfoss | Danfoss | Danfoss |
| Waterproof grade | / | IPX4 | IPX4 | IPX4 | IPX4 | IPX4 | IPX4 |
| Max water outlet temperature | ⁰C | 75 | 75 | 75 | 75 | 75 | 75 |
| Cooling working temperature | ⁰C | -5 ~43 | -5 ~43 | -5 ~43 | -5 ~43 | -5 ~43 | -5 ~43 |
| Heating working temperature | ⁰C | -25 ~ 35 | -25 ~ 35 | -25 ~ 35 | -25 ~ 35 | -25 ~ 35 | -25 ~ 35 |
| DHW working temperature | ⁰C | -25 ~43 | -25 ~43 | -25 ~43 | -25 ~43 | -25 ~43 | -25 ~43 |
| Cooling Outlet water temperature | ⁰C | 5~30 | 5~30 | 5~30 | 5~30 | 5~30 | 5~30 |
| Heating Outlet water temperature | ⁰C | 12~75 | 12~75 | 12~75 | 12~75 | 12~75 | 12~75 |
| DHW ( tank ) Outlet water temperature | ⁰C | 10~70 | 10~70 | 10~70 | 10~70 | 10~70 | 10~70 |
| Water side connection | / | R5/4" | R5/4" | R5/4" | R5/4" | R5/4" | R5/4" |
| Warranty | — | 3 Years For Whole Unit | 3 Years For Whole Unit | 3 Years For Whole Unit | 3 Years For Whole Unit | 3 Years For Whole Unit | 3 Years For Whole Unit |
| Certificates | — | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC | CE / ERPA+++ / RoHs / SGReady / ISO / LVD / EMC |
| Unit Dimension (W*D*H) | mm | 1050*460*803 | 1325*500*906 | 1325*500*906 | 1196*500*1110 | 1212*470*1572 | 1212*470*1572 |
| Carton Packing Dimension (W*D*H) | mm | 1105*495*930 | 1420*540*1035 | 1420*540*1035 | 1320*570*1250 | 1300*480*1700 | 1300*480*1700 |
| Wooden Crate Packing Dimensions (W*D*H) | mm | 1145*535*950 | 1460*580*1055 | 1460*580*1055 | 1360*610*1270 | 1340*520*1720 | 1340*520*1720 |
| Net Weight | KG | 90 | 118 | 122 | 165 | 170 | 195 |
| Gross Weight | KG | 123 | 154 | 165 | 190 | 220 | 235 |
Product parameters provided by Thermovo. Final model suitability and installation should be confirmed for your project.
Prepare an equipment enquiry
For a home project, share the building and installer brief. For distribution or wholesale enquiries, state destination, equipment scope, expected quantities and service arrangements. Model availability, minimum quantities, prices and lead times require a written quotation.
- Send the project brief and the requested equipment or model.
- Request the available model documents and confirm suitability with your installer.
- Agree equipment, accessories, delivery, commissioning and after-sales responsibilities in writing.
Topic-specific evidence
- matched model performance and refrigerant safety instructions — R290 vs R32 Heat Pumps: Refrigerant Selection for European Projects
- capacity and electrical input at the local design temperature — Cold Climate Air Source Heat Pumps: How to Keep High Efficiency Below Freezing
- room heat-loss calculations and the model’s modulation range — Heat Pump Sizing: Why Bigger Is Not Always Better
- clearances, airflow, drainage and service-access drawings — Heat Pump Outdoor Unit Location: A Homeowner’s Planning Checklist