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High Temperature Hot Water Heat Pumps

With 80 deg Celsius outlets water our High temperature water Heaters which adopt EVI Compressor are the best choice for your special requirements. These units are energy efficient and environmentally friendly. They are the ideal substitute for the traditional boilers.

Worldwide, for the currently estimated installed capacity of ground source heat pumps the savings are in the region of 16 MtCO2. This assumes 65,000 TJ annual ground source energy use and is compared to electricity generated by fuel oil at 30% efficiency. This is purely in the heating mode. If we assume equivalent savings in cooling mode then this figure would double.

Heat pumps represent expensive CO2 abatement options for space or water heating in developing countries. For example, in China, the average gas hot water heater has a tank storage size of eight to ten litres and a capital cost of around USD 100. The equivalent of the Japanese ECO Cute heat pumps have much greater capacities and capital costs that would be as much as USD 5 000 in China. However, high-efficiency reversible heat pumps for cooling and space heating are potentially an important abatement option in China and other developing countries or regions with moderate heating loads and significant cooling loads over summer.

Heat pumps are considerably more expensive than boilers, although running costs are much lower. While a typical condensing gas boiler may cost USD 1 500, a heat pump will cost about USD 5 000. The gas boiler would use about 50 GJ gas per year, while the heat pump would use 15 GJ electricity per year. Replacing a gas boiler with a heat pump would result in a reduction in CO2 emissions of 2.8 tonnes per year (provided the electricity was CO2-free) at a lifetime cost of around USD 160/t CO2 saved. In the United Kingdom, ground-source heat pumps currently have a CO2 abatement cost of around USD 100 to USD 200/t CO2 saved for existing residential dwellings, although this rises to between USD 380 to USD 900/t CO2 saved for buildings meeting the recent 2000 building codes. In the service sector, the CO2 abatement cost of heat pumps for space heating is around USD 200/t CO2 saved. In Canada, heat pumps for space heating might yield CO2 savings at a cost of between USD 143 to 432/t CO2 saved, although, in some regions and cases the abatement costs would be negative with current energy prices (Hanova et al., 2007). In the United States, abatement costs for heat pump hot water systems that replace electric resistance systems would be high, at around USD 400/t CO2 saved, even after extensive deployment (Sachs, 2004 and IEA analysis). For large service sector buildings, ground source heat pump systems are likely to be economic and have negative abatement costs where they provide, space and water heating, as well as cooling in summer .

Financial requirements and costs top:

Payback times for the heat pumps are normally two to ten years depending on the installation. The technology costs need to be considered in terms of overall total energy costs for both capital and maintenance costs and will vary depending on the local installation configuration. In the example from Norway described above, the total cost is NOK 60 million (or € 7.5 million) which is NOK 17 million greater than a conventional system (Lund et al., 2004). The energy cost savings are expected to be NOK 4 million annually, so that the payback period will be fifteen years, but within only four years of operation it will save money compared to a conventional system. The project received a subsidy of NOK 11 million.


Technical Specifications
Heating Capacity (KW) 13.6, 36.5, 71, 110
Input (KW) 5.45, 15.2, 29.2, 42.2
COP 2.5, 2.4, 2.44, 2.6
Power Supply (V/Ph/Hz) 400-440/3/50
Compressor (Type) Copeland EVI
Compressor Quantity 1,2,2,4
Circulation Pump Grundfos
Suggested Outlet Water Temperature (deg. Celsius) 75, 75, 75, 65
Max. outlet water temperature (deg. Celsius) 80, 80, 80, 70

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