Air & Ground Source Heat Pumps Explained


Air Source Heat Pumps

ASHP's are usually three to four times more efficient than a standard boiler saving over 40% on your Heating & Hot Water bills when replacing Oil, Bottled Gas, Electric Storage Heaters, or Solid Fuel.

In some cases with over *£10,000 of index linked tax free income paid via Ofgem over 7 years through the Renewable Heat Incentive, it really can pay to go green!



What are the benefits?

Reducing your heating & hot water bills! Air is free, so once you’ve paid for the initial installation your heating costs will be reduced.

Claim & Get paid for the heat you generate. The Government’s Renewable Heat Incentive pays you for the heat you generate for 7 Years and the payments are index linked and fiscally free.

Reduce your carbon footprint. Renewable heat is green, renewable energy doesn’t release any harmful carbon dioxide or other pollutants. So you will be cutting your carbon footprint too.

Or take up the Assignment of Rights whereby the investor receives the RHI but you gain by paying less for the installation and getting lower heating & hot water bills.

How do they work?


Heat from the air is absorbed at low temperature into a fluid. This fluid then passes through a compressor where its temperature is increased and transfers its higher temperature heat to the heating and hot water circuits of the house. Up to 4 times more efficient than non renewable heating solutions, Air Source Heat Pumps provide more heat for less energy use.

One of the most advanced heating systems, the Mitsubishi Ecodan range, is the ideal solution for households wanting to sustain a more green and intelligent form of heating.

Most air source heat pumps convert 75% outdoor air into heat, using just 25% of a home's electrical energy. 

Download a Mitsubishi brochure here​


Where will it be fitted?


The outdoor fan unit can be floor or wall mounted on specific mounting sets, and they fits neatly to the side of your property.


If they can’t be fitted within a certain distance of your property, then they can be fitted further away using a different system known as a split system. In 90% of cases they can be fitted to or near your property so a monobloc system is usually fine.

The cylinder and main pipework would be sited in a suitable location which would be agreed pre-installation.

How much do they cost?

Not as much as you may think, just contact us for an estimate, we can also access the AoR (Assignment of Rights - a part funded option >>>> so it may be that its much less than you think.

How much can i earn from the RHI?


With the RHI you could also gain an income for 7 years, which is index linked and fiscally free and can be over £10,000 (see example below) for a 5 bedroom detached property using heating oil.

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Ground Source Heat Pumps 

Ground Source Heat Pumps are a Renewable Heating & Hot Water Technology

Heat stored in the ground from the Sun is captured in a series of pipes, called a ground collector. This heat then passes through a refrigerant, turning the liquid into a gas, which is compressed to increase its temperature. This then passes over a second heat exchanger to transfer the heat for your homes heating and to provide hot water.


Completely sustainable, no more Oil, Coal, LPG or Gas costs, just electricity efficiently used to provide warmth and hot water.

For every kW of electricity consumed by the heat pump, around 4kW's of heat is generated in return, meaning you have an efficiency of 400% or more.


How Does It Work?


A mixture of water and inhibited anti-freeze is pumped around a ground loop, which absorbs naturally occurring heat. This heat then passes through a refrigerant, turning the liquid into a gas, which is compressed to increase its temperature. This then passes over a second heat exchanger to transfer the heat for your homes heating and to provide hot water.

The heat pump system can generate water temperatures of well over 50 degrees.

This heat is then used in your space heating system, and for your Hot water needs.

What are the benefits?

  • *You could get all of your money back over the term!

  • Lower your fuel bills.

  • Safeguard against future fossil fuel price rises.

  • Eligible for the government's Renewable Heat Incentive (RHI) of up to £30,000 over 7 Years via a direct agreement with OFGEM (The Energy Regulator) that we can help set up, meaning it could become a zero-capital outlay installation to you!

  • Lower your home's carbon emissions.

  • Does not require fuel deliveries and no more oily fumes and smells.

  • Extremely quiet in operation.

  • Very little maintenance required.

*subject to qualifying criteria 



How much will it cost? 

*It could be a lot less than you may think!

*For Ground Source Heat Pumps where funded we will always try to balance the capital cost of the project with the overall ROI (Return on Investment) over the term for Domestic RHI and longer term savings, and over 20 Years for Commercial Installations plus projected energy savings. 


For commercial installations the ROI will be designed to help the project towards funding itself with headroom from the combined RHI and Energy Savings made over the term.

Is everything included? 

Where required by the MIS3005 design we must produce for compliance under MCS and RECC guidelines, new radiators, pipework, and valves, including all the building regulations requirements that would need to be met. As well as upgrading the hot water function, to be compatible with your new heat pump.


In short, it usually means a brand new super efficient heating and hot water system is installed for you!


Are the ground works included as well as the geophys survey?

Yes, the best form of ground works would be discussed with you and agreed as required, and this is also included!

How long does it take to install?


Approximately just a week.

What is the lifespan?


Once installed, ground source heat pump piping system has an estimated lifespan of 50-100 years, while the heat pump itself can run for 20-25 years.

How much can i earn from the RHI?

See example below.

EG: Estimated based on:

  • 5 Bedroom detached house

  • Loft insulation

  • LPG heating system


Do you provide other technology too?

Yes we do, as well as Biomass Boilers, LED Lighting, Solar PV, Battery Store, EV Charge Points, Rain Water Harvesting and more click >>>> HERE

Request a free survey & quote!

*over £10,000 index linked tax free income (subject to property type, system design, and specific RHI calculation)

Busy Energy Ltd 

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VAT 349 0094 95 | ICO ZA726510 | CIPHE 00047468 | EngTech MCIPHE RP RHP | HWSS Unvented Hot Water G3

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