Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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Daikin Altherma

Technology / Service Summary

A heat pump system for heating and hot water collect heat from the air to warm water. This technology, originally developed for air conditioners, uses electricity to heat the air, which is then transferred to water for domestic hot water use, such as showers, or for space heating.

Purpose

Residential heating and hot water supply

Feature

Since 2006, Daikin has been marketing its heat pump-based heating and hot water system, "Daikin Altherma," in the European market. Notably, the "Daikin Altherma 3 H HT" model is designed to perform even in extremely cold regions. It can produce 70°C hot water using only the heat pump, without an electric heater, even at an outdoor temperature of -15°C, making it an ideal replacement for combustion boilers without needing to replace radiators. The product also emphasizes design and quiet operation, having won two design awards.

Effect

By harnessing thermal energy from the air and other sources, it is possible to achieve a significant reduction in CO2 emissions compared to fossil fuel-based heating systems. Additionally, the heat storage capability, which allows energy to be stored in hot water, is gaining attention for its potential to enhance flexibility in electricity usage.

Controlled Substance

Applicable Regions / Countries

  • Europe

Related SDGs Goals

  • 7. Affordable and Clean Energy
  • 11. Sustainable Cities and Communities
  • 13. Climate Action

Daikin Altherma