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| The R290 Inverter Air Source Heat Pump is an energy-efficient heating solution designed for space heating, cooling and domestic hot water. Using eco-friendly R290 refrigerant and advanced DC inverter technology, it delivers stable performance with lower energy consumption and reduced environmental impact. The unit supports high-temperature water output up to 80°C, making it suitable for radiators, floor heating and hot water applications. With strong low-temperature adaptability, it can operate reliably even in ambient temperatures as low as -25°C. This heat pump is ideal for residential homes, villas, hotels and light commercial buildings seeking comfort, efficiency and sustainable heating. | |||||||||
NL-FLM30-100II/R290 10kW
Nulite New Energy
The NULITE R290 DC Inverter Monoblock Heat Pump is a high-efficiency, all-in-one solution for residential and light commercial use, combining heating, cooling and domestic hot water. Using eco-friendly R290 refrigerant, it features DC inverter and EVI compressor technology for stable, efficient operation down to -25°C, with hot water up to 75–80°C. It supports WiFi control, SG Ready integration, and works with underfloor heating, fan coils, radiators and DHW tanks. Its monoblock design and integrated hydraulics offer efficiency, comfort, intelligent control and cold-climate performance for modern heating applications.
High-Temperature Water Output up to 80°C
The R290 inverter air source heat pump delivers hot water up to 80°C, making it suitable for radiators, floor heating and domestic hot water systems. Compared with traditional low-temperature heat pumps, it offers stronger heating capacity and wider application flexibility for residential and light commercial projects.
Stable Operation at -25°C Ambient Temperature
Designed for cold climate heating, this R290 air source heat pump can operate reliably in outdoor temperatures as low as -25°C. Its optimized refrigeration system helps maintain stable heating performance during winter, ensuring comfortable indoor heating and continuous hot water supply even in harsh environments.
R290 Natural Refrigerant – Sustainable Heat Pump Solution
Driven by Europe’s transition toward low-carbon heating and stricter regulations on high-GWP refrigerants, R290 (Propane) has become a leading choice for next-generation heat pumps. With an ultra-low GWP of approximately 3, R290 offers excellent environmental performance while maintaining high heating efficiency and reliable operation. Its outstanding heat transfer capability enables heat pumps to achieve higher water temperatures and stable performance even in cold climates. As a natural refrigerant, R290 helps reduce carbon emissions and supports a more sustainable future for residential and commercial heating, cooling, and hot water applications.
Full DC Inverter Energy-Saving System
Equipped with advanced DC inverter technology, the heat pump adjusts its output according to real heating demand. This reduces frequent start-stop operation, lowers electricity consumption and improves indoor comfort. The inverter system also helps extend unit service life and maintain quieter, more stable operation.
Heating, Cooling and Hot Water in One Unit
This high temperature air source heat pump integrates space heating, cooling and domestic hot water functions in one system. It can meet year-round comfort needs for homes, villas, apartments, hotels and small commercial buildings, helping users simplify system design and reduce installation space.
Reliable Design for Global Applications
The R290 inverter heat pump is built for high efficiency, strong durability and easy installation. With high-temperature output, low-temperature operation and intelligent control, it is suitable for different climate zones and heating systems, giving distributors and project customers a reliable solution for modern energy-saving heating projects.
The unit is designed with Modbus RTU protocol, ensuring seamless integration with building automation and energy management systems. Users can monitor key operating data in real time—water temperatures, compressor status, operating mode, fault codes, and energy consumption—and remotely control on/off, mode switching, temperature setpoints, and special functions such as quiet mode and legionella disinfection. Multi-unit networking supports centralized management of multiple heat pumps.Users can integrate heat pumps into their existing control systems to support remote monitoring and control.
This heat pump features PV DC direct-drive technology. DC power from the photovoltaic array drives the compressor directly, removing the need for inverters or batteries to maximize solar energy utilization. It achieves up to 90% energy savings on bright sunny days, with an overall energy saving of about 60%. Grid and PV power switch over seamlessly; the system favors PV power, and utility power automatically covers any PV generation deficit.
NULITE R290 DC Inverter Heat Pump features advanced energy-saving technology and has achieved ERP energy efficiency certification. With excellent heating performance, lower energy consumption, and reduced operating costs, it provides a reliable solution for modern homes. The certified energy label helps users access potential government incentives while supporting greener living. Designed for heating, cooling, and hot water applications, this high-efficiency heat pump combines smart energy management, environmental protection, and long-term comfort for European residential buildings.
Experience smarter heating with NULITE R290 High Temperature Air Source Heat Pump featuring WiFi remote control. Users can monitor performance, adjust settings, and manage heating, cooling, and hot water through a mobile APP anytime. Remote diagnostics simplify troubleshooting and reduce maintenance costs. Combining energy-efficient operation, intelligent control, and high-temperature capability, NULITE provides reliable comfort and sustainable energy solutions for modern European homes, delivering convenient management and enhanced user experience throughout the year.
We redefine the texture and lifespan of heat pumps with an exclusive patented exterior design. Crafted from thickened galvanized steel, far exceeding conventional sheet metal standards, it resists corrosion and stands firm against time and the elements. This is more than a heat pump—it is a symbol of premium quality, built for those who pursue the finest experience, making every investment worthy of lasting trust.
Exclusive patented air hood with a precisely optimized profile that guides airflow smoothly, reducing backflow and turbulence while lowering resistance and boosting air volume. Its unique guiding structure prevents hot air short-circuiting, ensuring stable heat exchange temperature difference. The airflow evenly covers the heat exchanger for full utilization of its surface. Optimized tip clearance and edge profile reduce both noise and volumetric loss—delivering quiet operation and high performance in one.
R290 DC Inverter Air Source Heat Pump – Front & Rear View
Front View
Fan: Cold/warm air output—The fan draws in ambient air and discharges cold or warm air after heat exchange, ensuring efficient and stable unit operation.
Rear View
Nameplate and Barcode: Displays the product model, technical specifications, and serial number for easy identification and after-sales tracking.
Ambient Temperature Sensor: Monitors outdoor temperature in real-time, helping the system automatically adjust output to maintain optimal operating conditions.
Handle: Facilitates handling and positioning during installation, making the process safer and more convenient.
Water Outlet: Connects to the water circuit system to deliver heated or cooled water to terminal units.
Water Inlet: Connects to the water circuit system, allowing water to enter the unit for heat exchange.
Refrigerant Pressure Gauge: Displays system pressure in real-time, facilitating operational monitoring and maintenance.
NULITE heat pumps are designed with optimized system integration, supporting key components including an electric heater, expansion tank, and inverter water pump. These components work together to ensure stable water circulation, efficient heating performance, and reliable operation under different application conditions.
The advanced touchscreen controller supports multiple languages, enabling easy operation for global users. With a clear interface and smart temperature management, it provides convenient control of heating, cooling, and domestic hot water functions for a comfortable living environment.
Site Preparation & Unit Placement
Choose a well-ventilated outdoor location with enough space for air inlet, air outlet and maintenance access. Place the R290 inverter air source heat pump on a flat concrete base or anti-vibration bracket. Keep the unit stable, level and away from enclosed or poorly ventilated areas.
Water Pipe Connection
Connect the heat pump to the buffer tank, domestic hot water tank, floor heating, radiators or fan coil system according to the project design. Make sure the water inlet and outlet are connected correctly. Pipe insulation is recommended to reduce heat loss and improve heating efficiency.
Residential Houses
Cold Climate Regions
Villas and Large Homes
Small Hotels and Guesthouses
Light Commercial Buildings
R290 DC Inverter Air-Source Heat Pump – Installation Case Studies
NULITER 290 DC Inverter Air-Source Heat Pumps have been installed in over 100 countries worldwide, serving a wide range of residential and commercial applications. With successful projects operating in markets such as France, Romania, Turkey, Germany, the Netherlands, and Poland, these units reliably meet local heating, cooling, and hot water needs. NULITE continues to serve the global market with a diverse product portfolio and proven performance.
Interested in installation case studies for your region? Contact us directly for localized project references and solution consultations!
What is the maximum outlet water temperature of this R290 inverter air source heat pump?
This R290 inverter air source heat pump can deliver high-temperature hot water up to 80°C. It is suitable for domestic hot water, radiators, floor heating and renovation projects where higher water temperature is required, offering wider application flexibility than standard low-temperature heat pump systems.
Can the R290 heat pump work in extremely cold climates?
What functions does the R290 inverter air source heat pump support?
Why does this heat pump use R290 refrigerant?
What building types are suitable for this R290 heat pump series?
