On average, combined hot water and home heating needs account for over 67%*1 of the overall energy bill in New Zealand homes. Domestic heating is therefore an obvious area to target in reducing energy bills. This is especially pertinent during the winter months, where a combination of taking longer, hotter showers and the increased need for a warm and dry home, typically drives up power bills. An Ecodan Heat Pump System can help reduce your heating and hot water bill when compared to gas and direct electric systems. What is Ecodan? Ecodan is an advanced air-to-water heat pump system that cleverly combines the hot water heating supply for a home with energy efficient whole home central heating; all through the same system. Heat pumps use electrical energy and take low grade heat energy from the outdoor air, to heat refrigerant which in turn heats water for domestic use and space heating. Increasing energy bills, coupled with the need to heat our homes and hot water efficiently, is driving the demand for alternative forms of domestic heating. Mitsubishi Electric has utilised their expertise and industry-leading technology to develop Ecodan – a super energy efficient air-to-water heat pump solution that combines both hot water heating and room heating through one system. Ecodan – Next-Generation Central Heating and Hot Water Heating Combined COP Comparison Chart Electric Heating Ecodan Gas Heating (Non-Condensing) 0.80 1.0 3.20 Heat pumps are super efficient at heating homes, so why not use the same technology to heat water? Many years ago, when heat pumps were first introduced to New Zealand, it did not take long for Kiwis to quickly embrace this super energy efficient technology to keep their homes and families warm all winter long. So it should come as no surprise that the same heat pump technology that revolutionised home heating in New Zealand can be just as effective and efficient at heating your hot water. The efficiency of a heat pump is known as the Coefficient of Performance or COP. This is a ratio of the heat delivered to power consumed. For every 1kW of electrical input energy, Ecodan absorbs renewable heat energy from the outdoor air to provide the home with an average of at least 3.2kW*2 of heat output. Compared to typical gas and direct electric heating systems that can have higher running costs with COPs as low as 0.80*3, Ecodan provides an energy efficient alternative. 2.2kW Low temperature renewable heat energy taken from the environment Electrical energy input 1kW 3.2kW Heat energy output *2 *1 Based on data sourced from EECA New Zealand. *2 As independently tested by BSRIA based upon BSEN14511 Part 3 standard rating conditions. Due to the method of operation, the performance of heat pumps will vary based upon the temperature of the heat source and the requirements of the heat delivered. The BSEN14511 testing relates to the heat pump performance only and not the entire heating system. *3 Based on manufacturer information for gas instant hot water heater (non-condensing). *4 Estimated using COP data based on BSEN14511 standard rating conditions. 7°C outdoor temp, 35°C outlet water temp. The BSEN14511 testing relates to the heat pump performance only and not the entire heating system. Savings on your hot water and heating costs could be up to 70%*4 when compared to traditional water heating. 2
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