Commercial Heat Pump Installer

An air to water heat pump extracts low temperature energy from the environment and increases its temperature for heating purposes. Heat pump efficiencies are normally quoted as the coefficient of performance of the system, these are typically in the range 3 to 5 In other words, extracting heat from renewable sources requires just 1kW of electrical input to generate 3kW to 5kW of heating output.

Heat pump systems, therefore, are 3 to 5 times more efficient than fossil fuel boilers and are more than capable of warming completely, even during the lowest winter temperatures.

An air to water heat pump absorbs heat from the outside air through an evaporator (a low-temperature heat exchanger). The refrigerant gas inside the evaporator absorbs this heat and evaporates. The gas then passes into a compressor, which increases its temperature and pressure. This hot vapour moves to a second heat exchanger, where it transfers heat to water for heating or for domestic hot water.

The refrigerant then flows through an expansion valve, lowering its pressure, and the cycle repeats.

These systems are popular for heating radiators and underfloor heating systems, and they can also produce hot water.

Unlike ground source heat pumps, air to water systems don’t need underground piping, making them cheaper and easier to install.

Air to water heat pumps are efficient. They deliver three to four units of heat for every unit of electricity consumed.

Also, most systems come with integrated heating controls, allowing precise scheduling of heating and hot water to match household needs, reducing energy usage by up to 20% (according to seai.ie).

A heat pump’s efficiency is often referred to as a “Coefficient of Performance” (COP) and all heat pump manufacturers are giving this value for nominal conditions of 7°C outdoor temperature and 35°C flow temperature.

The Coefficient of Performance (or COP) describes the ratio of electrical power used to heating power produced under fixed input and output conditions by the heat pump unit only. A COP is used for examining the performance of a heat pump unit at ideal test conditions, usually in a laboratory.

COP of 4 means for every 1kW of electrical energy used, 4kW of useful energy is produced a net 3kW of useful energy will be ‘free’ generated by the heat pump.

The best air to water heat pumps are Daikin Altherma 3 units.

Based on efficiency, suitability to Irish climate, heating capabilities, warranties, design, sound levels, size, maintenance requirements, ease of use, along with many other factors, we find the award-winning Daikin Altherma 3 air to water heat pump series to be the best on the Irish market.

As a result we install these as standard.

Several different units make up this series of heat pumps. The specific unit we install depends on the customer’s needs.

Model numbers include Daikin EHVH-UE6V, EHBX-E9W, ERLA16D2W17, EDLA-DV37 and EDLA-DV37.