Ground Source Heat Pumps

Ground source heat pumps use solar energy naturally stored in soil, bedrock and groundwater as a heat source. They do need electrical power to operate, but efficiently generate as much as 5 occasions as significantly heat energy for each unit of electricity they use.

For ground supply heat pumps you may need to have a various cylinder to those traditionally used in the house as these should become more of a heat retailer, for that reason producing them bigger in size.

You can find quite a few types of ground source heat pumps accessible to suit the heating specifications of any constructing, whether or not it's an current structure or possibly a new create. They're able to also be installed almost anyplace, provided there is certainly enough space to lay the ground loops or drill a bore hole.

A ground supply heat pump could be installed using a horizontal collector, lengths of pipe are buried underground to a depth of around 1 to two metres. Alternatively, a vertical collector might be used, which demands a bore hole to be drilled to a depth of about 50m to 200m and the collector is fed into the hole.

Electrical and plumbing installation is straightforward. It needs only a 240V mains supply and simple flow and return connections to internal and external wall circuits.

Ground Source Heat Pumps

The benfits of a Ground Supply Heat Pump;

* Decrease your CO 2 emissions : on average a ground source heat pump could save around 540kg of carbon dioxide each and every year when replacing an oil boiler. Emissions might be lowered additional ifthe heat pump is partly powered by one more renewable technologies, including solar electrical energy (PV).

* No fuel deliveries necessary.

* Can supply space heating and hot water

* Can lower fuel bills, depending on what heating fuel you're replacing

* It's usually classed as a 'fit and forget' engineering because it wants little upkeep.

How does a Ground Supply Heat Pump perform?

A ground supply heat pump circulates a mixture of water and antifreeze about a loop of pipe - referred to as a ground loop - that's buried inside the garden. Heat from the ground is absorbed into this fluid and is pumped by way of a heat exchanger inside the heat pump. Low grade heat is then extracted from the refrigeration program and, following passing by means of the het pump compressor, is concentrated into a higher temperature useful heat capable of heating water for the heating and hot water circuits of the home. Ground loop fluid, now cooler, passes back into the ground where it absorbs further energy from the ground within a continuous approach even though heating is required.

The length from the ground loop is dependent upon the size of one's home and also the amount of heat you'll need - longer loops can draw much more heat from the ground.

Commonly the loop is laid flat, or coiled in trenches about two metres deep, but if there is certainly not adequate space within your garden you are able to install a vertical loop to a depth of up to 100 metres for a typical domestic residence.

Heat pumps have some impact on the atmosphere as they need electricity to run, but the heat they extract from the ground, air, or water is constantly getting renewed naturally.

The effectiveness of a ground source heat pump is measured by a coefficient of efficiency (CoP) - the quantity of heat it produces when compared with the amount of electrical energy needed to run it. A typical CoP for any ground source heat pump is about three.2 if employed with under floor heating (it might be reduced if utilized with radiators). This means for each and every unit of electricity used to power the pump, you may get three.2 units of heat.

 

Air Supply Heat Pumps

The benfits of an Air Source Heat Pump;

* Lessen your fuel bills: air source heat pumps run on electrical energy, so there is no have to pay for gas, oil or solid fuels to heat your home. Emissions can be decreased further if the heat pump is powered by yet another renewable technologies, like solar electricity (PV)

* No fuel deliveries needed.

* Can provide space heating and hot water

* Can decrease fuel bills, based on what heating fuel you happen to be replacing

* It really is usually classed as a 'fit and forget' technologies because it requirements tiny maintenance.

* Might be less complicated to set up than a ground source heat pump, but efficiencies are usually decrease.

How does Heat Pump work?

An air source heat pump extracts heat from the outdoors air within the very same way that a fridge extracts heat from its inside. It might extract heat from the air even once the outdoors temperature is as low as minus 15?? C. Heat pumps have some effect on the environment as they need electrical energy to run, but the heat they extract from the ground, air, or water is continually being renewed naturally.

You can find two main varieties:

* An air-to-water technique utilizes the heat to warm water. Heat pumps heat water to a reduce temperature than a normal boiler technique would, so they are more suitable for underfloor heating systems than radiator systems.

* An air-to-air system creates warm air which can be circulated by fans to heat your home.

Heat from the air is absorbed into a fluid which can be pumped by way of a heat exchanger within the heat pump. Low grade heat is then extracted from the refrigeration program and, right after passing through the heat pump compressor, is concentrated into a higher temperature beneficial heat capable of heating water for the heating and hot water circuits of the house.

 

The efficiency of air supply heat pump systems is measured by a coefficient of overall performance (CoP) - the amount of heat they create when compared with the amount of electricity necessary to run them. A common CoP for an air source heat pump is about two.five when utilized with beneath floor heating; it might be less when employed with radiators. The COP means that for every single unit of electricity used to power the pump, 2.five units of heat may be produced.