Ground Source Heat Pumps

Ground Source Heat Pumps can save you money compared to conventional oil or gas central heating, while helping to protect the environment.

B.A.R. and Sons can supply and fit a ground source heat pump, which will heat your home using heat energy drawn from the environment. Kensa ground source heat pumps offer some of the highest efficiencies on the market.

Our M.C.S. accreditation, means that you could also benefit from Ofgem’s new Boiler Upgrade Scheme (B.U.S.), which could pay £6,000.00 towards the installation of your ground source heat pump.

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The Boiler Upgrade Scheme

The Boiler Upgrade Scheme was introduced by Ofgem to replace the Renewable Heating Incentive, to encourage home owners to replace their gas or oil boilers with a more enviromentally friendly, low carbon alternative.

The scheme is open to home owners who wish to upgrade to an Air Source Heat Pump or a Ground Source Heat Pump, and in some cases also covers Biomass boiler installations. It is also open to ‘Self Builders’ who are building theit own new homes. The scheme pays a fixed sum of £5,000.00 towards the installation of an Air Source Heat Pump and £6,000.00 towards the installation of a Graound Source Heat Pump. Where a property is unsuitable for a heat pump and is ‘off the gas grid’, the scheme will pay £5,000.00 towards the installation of a biomass boiler.

Key steps when having a Ground Source Heat Pump installed

To ensure that a ground source heat pump works efficiently  in your property, it is important that is correctly designed and installed. This is why it’s important to use a qualified installer. To make sure the system perfectly matches your home and your heating and hot water needs, we work to three key stages:

1. Pre-design assessment

Not all properties are suitable for a heat pump so it is important to determine if a heat pump is right for your home.

With years of experience in the renewable heating industry, B.A.R. & Sons will be able to advise you on the most beneficial system for you. We can produce a budgetary estimate, detailing the work required and including different options, if necessary.

Because we can supply conventional heating systems too, like gas or oil boilers, we won’t pressure you in to buying a heating system that isn’t suitable for your home or lifestyle.

2. Detailed Design and Specification

We will begin the detailed design process. This will include a full ‘heat loss’ survey to determine the heating and domestic hot water needs of your property and calculations to determine if your current radiators will be sufficient to ensure the heat is transferred efficiently into your home.

All of this information will be included in our full quotation, along with a performance estimate detailing the energy savings that you could receive.

3. Installation

Our team of qualified engineers will be onsite to carry out the installation. All work can be completed in house, including the positioning and connection of the heat pump, buffer tank and heat pump cylinder, connection of the heating controls and final commissioning of the system. Upon completion you will be provided with a full handover pack.

We will complete the Boiler Upgrade Scheme Voucher Application Form for your installation and submit it to Ofgem, who will then contact you to confirm the installation has been completed.

How do Heat Pumps work?

Heat Pumps work by extracting latent heat energy from the environment (either from the atmosphere, from under the ground or from a lake or river) to heat a property and produce hot water. The environment around us absorbs and stores heat energy from the sun. This heat energy is stored at low temperatures and in order to make it useful for heating purposes the temperature of this stored heat energy needs to be increased.

In a ground source, or ground to water heat pump, for example, an array of underground pipes, containing a water and glycol based antifreeze mixture, known as brine, absorbs heat from the ground, (at a depth of approximately 1m – 1.2m this heat energy is at a fairly constant temperature of 10 – 12oC). The brine then passes through a heat exchanger within the heat pump and transfers its captured heat energy to a refrigerant gas, which has a low enough boiling point so that the heat energy stored in the brine causes it to evaporate. This evaporated gas then passes into a compressor; compressing the refrigerant gas, causing the temperature to increase.

The compressed gas then passes through another heat exchanger, known as a condenser, where the stored, higher temperature heat energy is transferred into the property to provide heating and domestic hot water. As the refrigerant gas gives up its stored heat energy, it condenses back into a liquid and begins its circuit back around the heat pump.

 

 

Heat Pump Example

The compressor and circulation pumps within the heat pump require an electrical supply, but because most of the heat generated by the heat pump is free heat energy drawn from the environment, heat pumps are typically 350% – 450% more efficient, so for every 1 Kilowatt of electricity used, the heat pump will generate 3.5 – 4.5 Kilowatts of heat.

In order to achieve these levels of efficiency and maintain low running costs, heat pumps are best suited to well insulated, new build properties or properties that have been renovated to new build standards and they need to produce flow temperatures as low as possible; typically, between 35oC and 45oC. Because of this, heat pump installations must be designed in unison with the heat emitters, whether they are radiators or underfloor heating.

The advantages of all heat pumps is that they have minimal maintenance requirements, long service lives and when installed correctly will provide very cost effective heating for years to come.

How a Ground Source Heat Pump supplies your Home

The fluid which is contained within the outdoor underground pipes absorbs energy. This is then transferred via a pump to the heat pump and converted via a process of compression into heated water which is made ready for circulation to warm your radiators or underfloor heating and for use with hot water at your taps. The cooled fluid (after passing its heat into the home’s water and central heating system) continues back underground to absorb further energy in a continuous loop.

In order to achieve these levels of efficiency and maintain low running costs, heat pumps are best suited to well insulated, new build properties or properties that have been renovated to new build standards and they need to produce flow temperatures as low as possible; typically, between 35oC and 45oC. Because of this, heat pump installations must be designed in unison with the heat emitters, whether they are radiators or underfloor heating.

The advantages of all heat pumps are that they have minimal maintenance requirements, long service lives, and when installed correctly will provide very cost-effective heating for years to come.

 

Heat Pump Example

The compressor and circulation pumps within the heat pump require an electrical supply, but because most of the heat generated by the heat pump is free heat energy drawn from the environment, heat pumps are typically 350% – 450% more efficient, so for every 1 Kilowatt of electricity used, the heat pump will generate 3.5 – 4.5 Kilowatts of heat.

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Client Testimonials

“They fitted our boiler system .. Was punctual polite and efficient ..We use them to service yearly and wouldnt use anyone else. Definitely 5 star.”

Shani Hanson

“Had BAR come and install new pressurised system to update an old hot water system. The guys did a great job and ensured everything was done quickly and with minimal disruption and mess. Thanks!”

Daniel Griffin

Once again please pass on our thanks to the whole team for all their work during the installation of the hot water/heating system. The whole process from start to finish has been carried out by professional and caring people who have been a pleasure to work with.

Mr & Mrs Garner

Contact Us

Unit 10, Ebor Court, East Retford, DN22 8FQ

01777 228076

enquiries@barandsons.co.uk

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