HEAT PUMPS

  • Highly efficient alternative to gas, oil or LPG
  • Suitable for private and commercial properties of all sizes
  • No need to have fuel deliveries if you are off the main gas grid
  • Lower carbon footprint by providing more efficient energy output. 1KW in produces 4KW out (conventional boilers are 1KW to 1KW)

To produce this higher energy output, heat pumps simply extract naturally occurring heat from the ground or air – ground source heat pumps and air source heat pumps. Even in our UK climate.

OTHER BENEFITS

Once installed there is minimum maintenance required and because there is no need for gas there are no bad odours or danger of toxic leaks.

If installed into a new build a heat pump can
increase the buildings energy rating which
can help it pass The Standard Assessment
Procedure. It could also result in no gas line being required for the property or building site.

Should you choose to install a heat pump and it is installed and commissioned before March 2022 you could be eligible for the Renewable Heat Incentive (RHI).

All of our heat pump systems are tailor made and designed for each individual client and the property, once installed the full system including the heat pump and cylinder will be fully commissioned and all building regulations completed.


What is
a heat pump

A heat pump is an alternative to a gas, oil or LPG fired boiler. If sized correctly they are capable of providing hot water and heating for entire buildings including both private or commercial properties. There are two main types of heat pumps, ground source heat pumps and air source heat pumps. Both types of heat pumps use different methods to extract naturally occurring heat from the ground or air, even in the UK climate. All of our heat pump systems are tailor made and designed for each individual client and the property, once installed the full system including the the heat pump and cylinder will be fully commissioned and all building regulations completed.



What are the benefits
of a heat pump

Heat pumps are up to four times more efficient than a conventional boiler, this means for every 1 KW of energy, which is usually electricity,AQ put into the pump there can be up to 4 KW of energy (heat) produced. This will lower your fuel bills and your carbon foot print.

No need to have fuel deliveries if you are off the main gas grid. Once installed there is minimum maintenance required and because there is no need for gas and there is no danger of toxic leaks


If installed into a new build a heat pump can increase the buildings energy rating which can help it pass The Standard Assessment Procedure (SAP). It could also result in no gas line being required for the property or building site.

Should you choose to install a heat pump and it is installed and commissioned before March 2022 you could be eligible for the Renewable Heat Incentive (RHI).

Ground Source Heat Pumps (GSHP)

A GSHP uses pipes buried in the ground to extract heat, there is brine (glycol) running through these pipes, this takes the heat which is usually between 8°C and 12°C back into the heat pump. The heat pump is usually situated within the property or a dry plant room that has electric and mains water connections. Within the heat pump the extracted heat moves along a refrigerant circuit and through a compressor this raises the temperature of the gas and the heat is then transferred to the properties heating and hot water circuit through the condenser/heat exchanger. This heat is then used to heat the property using underfloor heating or radiators
and the hot water cylinder.

Once the property has reached the desired temperature and the water cylinder is full the heat pump will simply maintain that temperature. There is no need to turn the pump on or off as you leave the building, in fact it is more efficient and cost effective to simply set the room thermostats and leave the heat
pump alone.

Our ground source heat pumps can efficiently raise the temperature up to 55°C for both heating and hot water. They have a variable output which means the heat pump is able to modulate to meet the exact needs of the property. This will increase the heat pumps efficiency, lower the running cost and increase the lifespan of the compressor. They also come with a 7 year warranty.


Each GSHP is internet enabled. There are 4 people that have the application for the heat pump.

01 The owner: This is limited access and enables you to monitor the heat pump.
02 Us, the installer: We can remotely monitor the heat pump to check that it is running efficiently also should on the rare occasion a problem arise we can sometimes diagnose it without a call out.
03 The supplier: These have a higher level of access again and can help keep the heat pump running efficiently.
04 The manufacturer: They have the highest level of access and can check the heat pump for all kind of faults and diagnose problems should they be required, sometimes advising the installer if required.


The ground collector for GSHP

There are two ways in which we can collect heat from the ground.


Horizontal
ground loops

This is where pipes are laid approximately 1.2 meters deep horizontally under the ground, a
circulating pump moves the brine through these pipes in loops, the heat is carried on the brine which passes through a manifold sunk in to the ground. From the manifold it passes through a header pipe and into the heat pump. Once the heat is extracted the brine passes through a return header pipe back to the manifold and back out in to the ground loop. This method of extraction requires a large garden or field to allow plenty of space for the length of the pipes.



Vertical
(bore holes)

This is essentially the same principle as the horizontal method and uses brine to carry the heat to a manifold and on to a header pipe before passing through the GSHP, however the pipes will be sunk vertically down into the ground and can go as deep as 150 meters. This form of ground loops is used for properties with not so much open ground space and uses specialist contractors or “drillers” the number of bore holes required depends on the heat demand of the property.


An Air Source heat pump ASHP

An air source heat pump is simply a unit that sits on the outside of the property, it is usually based on the floor and works by absorbing heat from the free-flowing air that passes through it. The heat is drawn from the air using the built-in fans within the unit, a refrigerant gas then carries the heat through a compressor, this forces the gas to expand and heat up. This heat can then be used for the properties heating and hot water supply. Most of our systems use a heat pump compatible unvented hot water cylinder to store the water and this is where the controls for the heat pump are usually found. Once the water cylinder is full the heat passes through a plate heat exchanger and heats radiators and/or underfloor heating. Some of our bigger ASHP installations will require a buffer tank instead of a plate heat exchanger. All the air source heat pumps we install can work down to -20°C. When deciding where to place the heat pump it is important there is free flowing air around it and that it is placed on a flat, free draining surface.

Just like a GSHP the Air source heat pump is designed to reach the desired temperature and maintain it. This making it more efficient and using less energy than a conventional boiler. All our ASHP systems can achieve 55°C. Air Source heat pumps are a lot simpler to install than a ground source heat pump as there is no need for ground loops and most of the time there is little need for any trenches to be dug to bury pipes. Because the air temperature fluctuates more than the ground temperature it is important that an air source heat pump is sized correctly to accommodate this fluctuation.