Unlike conventional boilers that generate heat by burning fuel, air-to-water heat pumps transfer existing heat from outdoor air into the home. Because the system moves heat rather than creating it through combustion, it can deliver efficient heating and hot water with lower energy consumption.

Key benefits include:

• Use of renewable ambient air as a heat source

• Efficient heating and domestic hot water operation

• Reduced energy consumption compared to conventional boilers

• Lower environmental impact through reduced fuel dependency

An Air to Water Heat Pump transfers heat from outdoor air into your home for space heating and hot water. Even in cold weather, the outside air still contains usable thermal energy, which the system captures and transfers indoors through a refrigerant cycle. You can think of it like a refrigerator working in reverse. Instead of removing heat from inside and releasing it outside, the heat pump absorbs heat from outdoor air and delivers it into the home.

The process works in a simple cycle:
• Step 1. Absorb heat from outdoor air The system captures thermal energy from the surrounding air, even at low outdoor temperatures.
• Step 2. Increase the heat temperature The refrigerant cycle compresses the absorbed heat to raise its temperature for heating use.
• Step 3. Transfer heat to water The heat is delivered to water, which can then be used for underfloor heating, radiators, or domestic hot water.
• Step 4. Repeat the cycle continuously The refrigerant continuously circulates through the system to provide reliable heating throughout the year.

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For homeowners looking to reduce long-term heating costs while switching from conventional boilers, LG THERMA V R290 Premium Monobloc offers a highly efficient heating solution. Designed for both new build homes and renovation projects, it combines advanced heat pump technology with an optimized system design to deliver reliable heating performance while helping reduce annual energy consumption and heating costs.

Key efficiency features include:

• ErP energy class A+++ for space heating

• High seasonal efficiency with SCOP up to 5.0¹⁾

• Natural refrigerant R290 with ultra-low GWP of 0.02²⁾

• High-efficiency compressor and optimized heating technology

• Reliable heating performance even in low outdoor temperatures

^{1) Based on LG THERMA V R290 Monobloc under Average Climate and Low Temperature (35℃) conditions
2) The R290 refrigerant has a GWP of 0.02 (IPCC AR6, 20-year basis), compared to a 100-year GWP of 3}

Both systems use high-efficiency R290 heat pump technology, but they are designed for different installation needs and home configurations.

• LG THERMA V R290 Premium Monobloc – If you are looking for a more customizable heating and hot water solution, Premium Monobloc combines an outdoor unit with a dedicated indoor unit. It is suitable for homeowners who want stable indoor comfort, reliable heating performance even in cold conditions, and greater flexibility in system design. Within the Premium Monobloc system, the choice of indoor unit depends on your home's setup and how you plan to use heating and domestic hot water.

• LG THERMA V R290 Monobloc S – If you prefer a simpler installation or already have compatible heating and hot water components in place, Monobloc S provides an outdoor-unit-only solution. It can be easily connected to an existing water tank and integrated with existing heating systems. Depending on the installation environment, it may also help free up indoor space previously occupied by a boiler or other heating equipment.

The most suitable indoor unit depends on your installation environment, hot water requirements, and preferred system configuration.

• Control Unit – If you already have existing hydronic components or a domestic hot water tank and prefer a simpler heat pump setup. This compact wall-mounted unit is designed mainly for system control with no water piping required.

• Hydro Unit – If you want more flexibility in system design or plan to install a separate domestic hot water tank. This wall-mounted unit integrates key hydronic components for heating operation.

• Combi Unit– If you want heating and hot water in one integrated solution with simplified installation and space-saving benefits. This floor-standing unit features a built-in domestic hot water tank. In particular, the 2 Zone model is suitable when you want to control two different zones independently because the mixing pump group is integrated inside the indoor unit.

The integrated commissioning wizard guides installers through system setup and start-up after installation. It helps streamline key configuration steps, reducing complexity during commissioning and supporting a smooth system operation and installation completion.

LG THERMA V R290 Premium Monobloc is designed for quiet residential operation, helping create a more comfortable outdoor environment for both homeowners and neighboring homes. The outdoor unit uses advanced sound- and vibration-reduction technologies to help minimize operational noise. Depending on installation conditions, the system can typically be installed as close as 3 meters3) from a neighboring house without requiring an additional acoustic hood.

Key noise reduction features include:
• Soundproofing and vibration-reduction technologies
• Biomimetic fan design for reduced airflow noise
• Approx. 52 dB operation for the 16 kW model
• Quiet Mark certification

^{3) Minimum distance to be away from neighboring house may vary depending on installation conditions and noise regulations in individual countries.}