An air to water heat pump offers an efficient cost effective alternative solution to fossil fuel boilers (oil boiler, gas boiler). The main focus of the heat pumps technology is using a refrigeration cycle to harness the energy in the surrounding air, manipulate this energy to increase temperature and input this energy into your system for production of heat for your heating system and hot water production. Ireland’s climate is very suitable for this technology as our average air tempertaure is 7 degrees Celcius.The air to water heat pumps that we offer are manufactured by Europes largest air to water heat pump manufacturer, Daikin Europe.
Daikin Air to Water Heat Pumps
Daikin have been manufacturing air to water heat pumps for 40 years. Their manufacturing process means that every units electronic, refrigerant and hydraulic systems are tested prior to dispatch. They also produce in their factories 99% of the components within their units including the compressors and refrigerant so they can gaurantee a superior quality assurance on all their units. All their units for the European market are manufactured in Belgium. The Daikin Altherma range comes with inverter driven compressors (speed controlled). This basically means that the unit can increase or decrease its ouput and therefore its power consumption which in turn maximises efficiency. Weather compennsation is also an integral part of the systems control parameters. Therefore the unit can respond to weather changes by increasing or decreasing its ouput temperature and therefore providing the user with a complete automated, responsive system.
Daikins air to water heat pumps vary from 6kW out put to 16kW ouput. There are three different options for these heat pumps.
1. Altherma Monoblok Air To Water Heat Pump
The Altherma Monoblok is an all in one unit that is installed outside of the serviced property. This means that there is no need to take up any space with additional plant items within the property. The units design means that we can get up to 48 degrees Celsius from the unit, down to an outside temperature of -20 degrees celsius. This unit is suitable for low temperature circulation systems e.g. underfloor heating. However this system can be used for retrofit projects for full or partial load depending on the heat requirements within the structure.
2. Altherma Split Air to Water Heat Pump
The Altherma split system is very similar to the monoblok unit in that the heat is generated through the refrigerent circuit outside. The difference is that this heat is then transferred to inside through refrigerent pipes and within the indoor unit the heat is exchanged into the heating system. The indoor unit can be a floor mounted or wall mounted unit. The new C series model can produce heat up to 60 degrees Celsius which is the same as a properly commissioned condensing boiler.
3. Altherma High Temperature Air to Water Heat Pump
The high temperature heat pump is the only air to water heat pump that can give a temperate of up to 80 degrees Celsius directly from the compressor. The units out door unit is similar to the split system outdoor unit. However when the heat is transferred to the floor mounted unit a second stage refrigerant cycle can provide the increase in temperature to 80 degrees Celsius.
This system therefore can heat radiators to the same temperature as a conventional boiler unit but for much lower running costs.
Ground Source Heat Pumps
A ground source heat pump is often called a geothermal heat pump but this is a misnomer. The vast majority of the energy that is extracted with these heat pumps is the suns energy that is stored in the ground and not the heat that comes from the earths core. The average ground temperature in Ireland is approximately 8 degrees Celsius and this temperature does not dip below 0 degrees Celsius. Due to his relatively consistant temperature input the ground sourceheat pump can provide excellent efficiencies compared to conventional boiler systems. Our manufacturing partner Worcester Bosch have been committed to quality heating products for 50 years. Their ground source heat pumps varies in size from 6kW to 11kW output and there is a choice between a unit with a in-built hot water tank (Combi) and a unit with a seperate hot water tank (System).
There are two main options for the installation of a ground source heat pump:
This involves a specialist drilling contractor providing a vertical borehole where the heat pump will collect its energy from. The depth of the borehole will be dependant on a number of factors including the size of the heat pump, type of rock that lies beneath, depth of soil layer etc. The borehole pipes inserted in the borehole will be connected directly to the heat pump and an anti-freeze solution will be added to this collector pipe to act as the heat absorbing liquid.
This is the most common type of collector. However it is not suitable to install this type of collector in gravelly or sand soil profiles. The pipes are laid in a series of trenches to gathewr the suns energy stored in the ground. These trenches need to be a minimum of 1 meter below the finished ground level and 1 meter wide. The length will depend on the size of the heat pump.