CO2 Heat Pump Water Heater Market Report

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Global CO2 Heat Pump Water Heater Market Size

The global CO2 heat pump water heater market size was valued at USD 1.93 billion in 2025 and is anticipated to reach USD 3.51 billion by 2034 from USD 2.06 billion in 2026 and increase at a CAGR of 6.90% between 2026 and 2034.

The system has several advantages over other heat pump water heaters, including a reduction in primary energy usage of more than 75%. In addition, the rising demand for energy-efficient heaters in developed countries like Europe and Japan propels the CO2 Heat Pump Water Heater Market forward. Over the projected period, the increasing demand for HPWH from commercial and residential areas and district heating projects is expected to give profitable chances for the CO2 heat pump water heater market to develop.

MARKET DRIVERS

The increasing demand for energy-efficient heaters in emerging economies is the primary factor responsible for the global CO2 heat pump water heater market growth during the forecast period.

Similar to refrigerators, a CO2 heat pump water heater is introduced as a compressor. Instead of discharging heat into the atmosphere, the HPWH collects heat from the environment and pumps it into a water tank. When compared to typical HPWH systems that utilize propane or HFC as a working fluid, the HPWH system using CO2 as a working fluid can achieve a 20% higher COP. Heat pump water heaters are ideal for less hot water applications, such as in small business operations and the residential sector, including single-family residences and multi-family structures. This heater's 10–20kW segment is simple to operate and has high operational efficiency. Nursing homes, hotels, hospitals, sports facilities, and residential constructions all use these heaters daily. Because of their environmental and cost-saving benefits, these heat pumps have acquired widespread acceptance and approval.

Furthermore, government initiatives in several nations are supporting the growing need for geothermal heat pumps. Again, one of the most promising solutions for reducing greenhouse gas emissions is a heat pump water heater. Through aerothermal and geothermal technology, a heat pump water heater gives an energy-efficient approach to supply heating. As a result, adopting heat pump water heater systems instead of fossil fuel-based systems can dramatically lower carbon emissions coupled with energy use and generation. Nonetheless, technological improvements, the Internet of Things (IoT)-enabled heat pump water heater systems, and untapped potential in emerging countries point to positive growth prospects. Moreover, the increasing number of heat pump water heater installations in commercial, industrial, and residential segments acts as a crucial factor in fueling the global CO2 heat pump water heater market growth in the upcoming years. 

MARKET RESTRAINTS

All end-user sectors are unaware of heat pump water heaters' cost efficiency, energy efficiency, and environmental benefits.

This is because they are generally thought to be costly. These are the potential limitations to the global CO2 Heat Pump Water Heater Market's overall growth. In addition, a lack of awareness regarding the uses of heat pump water heaters in emerging economies hinders the global CO2 heat pump water heater market growth during 2021-26. Furthermore, a new generation of CO2 heat pumps generates much higher temperatures and avoids the high global warming potential of standard refrigerants.

On the other hand, heat pumps are of high cost and are difficult to install. Moreover, heat pumps raise more issues in cold weather and can damage the system. Therefore, in cold weather, heat pumps cannot generate high efficiency.

Moreover, heat pumps rely on electricity to operate and have a high coefficient of performance. The installation process of heat pumps requires enough work and disruptions to the house and the garden. Moreover, heat pumps are expensive, which is the most challenging to install. These are some of the factors responsible for hampering the global CO2 heat pump water heater market during the foreseen period.

REPORT COVERAGE

SEGMENTAL ANALYSIS

By Product Insights

Based on the product, the air source segment will play a dominant role in the global CO2 heat pump water heater market in the near future. Most residential sectors utilize air sources due to their lower installation cost and eco-friendly technology, which further propels the global CO2 heat pump water heater market growth. The energy for heating is extracted from the air by an air source heat pump water heater. Instead of using a fluid-like ground or rainfall, this heat pump water heater is usually situated outside and absorbs thermal energy from the environment. In colder areas, the technique of absorbing outside heat uses less fuel than typical electric resistance heating systems and gas boilers, resulting in lower electricity usage and easier market penetration.

On the other hand, the water source segment tends to grow with the highest CAGR in the market. Depending on whether there is power available for heating, water source heat pumps absorb thermal energy from water, then are pumped between a compressor/condenser unit and an electric heater core. Thus, they work in the same way that air source heat pump water heaters do, but without the need for additional components like fans or ducting, making them simple to install and maintain even in small spaces. This characteristic makes it appropriate for residential applications where installation requirements could be complex if not planned beforehand.

By Application Insights

Based on application, the residential sector held the highest global CO2 heat pump water heater market share because of its energy-efficiency technology and several government subsidies to increase the demand for heat pump water heaters. Electric resistance heating is used in the home use of CO2 heat pump water heaters, using an electrically powered fan to circulate the air, which is then cooled by passing through a coil before being vented back into the room. Depending on the local environment and weather circumstances, it can be utilized as a primary or secondary house heating source. In addition, depending on space constraints and hot water demand, the appliance may be positioned at a central location or on each building floor.

REGIONAL ANALYSIS

Asia Pacific is the largest global CO2 heat pump water heater market owing to the increasing government initiatives to propel the demand for heat pump water heaters and rising the use of renewable energy and energy-efficient products.

North America is estimated to grow with the highest CAGR in the global CO2 heat pump water heater market due to the several changes made by the emerging economies including U.S. and Canada, through their effects on lowering the CO2 emissions.

Latin America is anticipated to have significant global CO2 heat pump water heater market revenue owing to the growing environmental awareness and modified infrastructure to lower the emissions of greenhouse gases.

KEY MARKET PLAYERS

Companies playing a prominent role in the global CO2 heat pump water heater market include Sanden, Mitsubishi, DENSO, AAON, DunAn Group, enEX, Sujing Group, Nihon Itomic, Daikin, Zero Energy Project, and Others.

RECENT MARKET HAPPENINGS

• Mitsubishi introduced the lossnay mechanical ventilation for residential use, which provides clean, healthy, and fresh air to homes. It is designed especially for the U.K. housing market. It can be used in kitchens, utility rooms, bathrooms, etc. It has low noise levels and is best-suitable for residential purposes.

• On August 5th, 2021, Daikin introduced Daikin Applied's Pathfinder AWV, an integrated water-side economizer with free cooling advantages, to an air-cooled chiller. Due to its benefits, it is awarded as a comfort product of the year.

MARKET SEGMENTATION

This research report on the global CO2 heat pump water heater market has been segmented and sub-segmented based on product, application, and region.

By Product

• Air Source
• Water Source

By Application

• Residential
• Commercial
• Industrial

By Region

• North America 
• Europe 
• Asia Pacific
• Latin America 
• Middle East & Africa