Heat Pumps
As you are only too well aware we are now in the era of ever increasing energy prices, dwindling fossil fuel supplies, high CO² emissions leading to escalating carbon taxes and severe weather etc, to this end it is now absolutely vital that we all think of newer more efficient ways of heating our homes, which leads us into the area of better insulation values and renewable heating systems and above all future proofing our homes.
Geothermal Source Heat Pumps
Geothermal heat pumps will reduce your heating bills by 75% if used in conjunction with low temperature underfloor heating systems, 75% of the energy is renewed every day from your garden completely free from Mother Nature (YES Free) You input the other 25% by running an electrical compressor on night saver electricity.
How Geothermal System works
- During the summer the sun warms the earth and stores the heat in the ground. This heat is collected by installing a horizontal or vertical ground collector, about 1 meter under the surface and at least 1 meter apart.
A mixture of water and anti-freeze is circulated through the collector pipes to collect the heat and deliver it to the heat pump.
The length of the surface ground collector pipe required for a house is between 200 and 600 meters depending on heat required and the size of the heat pump being installed.
- The surface ground collector method is cost effective where sufficient useable land is available.
The higher the water content of the soil the better as this will facilitate good transfer of heat from the ground to the non-freezing solution circulating inside the horizontal ground collector.
Benefits of Installing a Geothermal Heat Pump
- Heat pumps provide all your domestic hot water summer and winter without the need for back up heaters at temperatures up to 58º C.
Normal temperature for a shower is 38º C. A heat pump can heat 300 litres of DHW for less than 30 cents (A normal shower should you between 30 and 50 litres of water).
Consistent temperatures below ground throughout the year provide a high COP(co-efficiency of performance).
They use less electricity and produce fewer emissions than conventional systems, reduce air and water pollution and provide a comfortable indoor environment for the building occupants.
- Geothermal Heat Pumps are used to heat domestic and commercial projects providing heating and hot water(remember 75% of energy is free form your garden).
Air Source Heat Pumps
Air source heat pumps absorb heat from the outside air. This heat can be used to heat under floor heating, radiators and domestic hot water.
Believe it or not a heat pump is the same principle as a fridge but just in reverse. An air-water heat pump simply extracts the heat that’s present in outdoor air and delivers it inside your home to keep you warm and comfortable.
70% of heat is generated free from air!
How it works
- Air passes the heat exchanger and refrigerant absorbs heat from outside air.
- The vapour passes into compressor and compression increases the temperature.
- Hot vapour is condensed in 2nd heat exchanger, rejected heat is passed onto heating/hot water system.
- The liquid refrigerant passes back through expansion valve ready to start cycle again.
Benefits of Installing a Geothermal Heat Pump
- Lower fuel bills especially if you are replacing conventional electric heating
- Lower carbon emissions.
- No fuel deliveries.
- Air heat pump will heat your home and provide all your DHW requirements.
- Easier to install than a geothermal system as there is no digging ground to install collectors.
- Maintenance kept to a minimum.
KES are accredited installers of Daikin Heat Pumps
KES are accredited installers of Stiebel-Eltron Heat Pumps
Installation of a Geothermal Heat Pump