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Sustainability > Environment > Response to Climate Change > Promoting the Use of Heat-Pump Type Space and Hot Water Heaters

Response to Climate Change

Promoting the Use of Heat-Pump
Type Space and Hot Water Heaters

Heat-Pump Systems for Space Heating and Water Heaters

Less than 2/3 of the CO2 Emissions Compared to Burning Fossil Fuels

In the heat-pump method used in air conditioners and other products, thermal energy stored in the air or water is extracted and transferred to perform cooling and heating.

Compared to carrying out space and water heating using methods in which fossil fuels such as gas, oil, and coal are directly burned, heat-pump systems emit less than half of the CO2.

The Heat Pump Mechanism

The Heat Pump Mechanism

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Promoting the Use of Heat-Pump Type Space and Hot Water Heaters

Bringing More CO2-Reducing Heat-Pump Type and Gas Combustion Type Space and Hot Water Heaters to the European Market

The Daikin Group is developing space and hot water heaters using energy-efficient heat-pump technology.

The EU has set a target of having renewable energy such as wind and solar power account for 20% of the energy mix by 2020. In January 2009, heat pumps were recognized in the EU as technology that captures renewable energy and heat-pump heaters are being recommended as part of this target. In 2006, the Daikin Group began selling a heat-pump type hot water heaters and heating system in Europe and we have been expanding the product lineup since then.

In addition, in fiscal 2014 we began focusing on the development of highly energy-efficient gas combustion space heaters and moving to energy-efficient models that meet user needs. We have been working to spread the use of energy-efficient models through a policy that consists of switching from space heaters with a large environmental impact heat-pump type, switching medium-range products to the Hybrid Altherma, which automatically changes between heat pump mode or gas combustion mode, whichever is more efficient, and switching models with a small environmental impact to energy-efficient gas-combustion type.

Our Asahikawa Laboratory in Asahikawa, Hokkaido, which we established in December 2013, has led efforts to develop new heating and hot-water systems that will offer comfort and energy efficiency for the world’s extremely cold regions. We will continue to contribute to decreasing CO2 emissions by developing heat-pump and gas-combustion-type energy-efficient products not only for the European heating market but for markets in all regions of the world.

Daikin Altherma Hybrid Heat Pump

In September 2013 in Europe, we released the Altherma Hybrid Heat Pump, which automatically switches from heat pump to gas combustion mode when outside temperature drops significantly, thus providing the most efficient and economical heating possible. This product offers a more-than 35% reduction in CO2 emissions compared to gas combustion-type products.

Daikin Altherma Hybrid Heat Pump

Increasing Sales in the Commercial Market for Products Including the MEGA-Q Large-Scale Heat-Pump Hot Water System

Daikin's heat-pump technology is incorporated into ECOCUTE heat-pump water heaters and Hot Eco-Floor heat-pump hot-water floor heaters. The Daikin Group is also developing space and hot water heaters for the commercial market as well using highly energy efficient heat-pump technology.

In November 2012, we began selling a new model of the commercial heat-pump water heating system (MEGA-Q) for large-scale facilities such as hotels and hospitals, which we first introduced in April 2009. Compared to combustion-type water heaters, this new model releases about 62% fewer CO2 emissions and reduces running cost by about 68%. Facilities like hospitals and golf courses require changing volumes of hot water daily, and Daikin meets this challenge with a hybrid hot water supply system that provides hot water during base periods with MEGA-Q and that switches to boiler operation during peak periods.

We are also working to spread the use of the Danzen Heat system for commercial facilities, which cuts CO2 emissions by 52% compared to an oil-powered hot-air space heater.

By replacing combustion-type water heaters with heat pump models, we are switching the source of heat and thus contributing to energy efficiency.

Comparison of Annual CO2 Emissions:
MEGA-Q Large-Scale Commercial Heat-Pump Water Heating System versus Combustion-Type Boiler

Comparison of Annual CO2 Emissions: MEGA-Q Large-Scale Commercial Heat-Pump Water Heating System versus Combustion-Type Boiler

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