Air Source Heat Pumps Scotland

Air Source Heat Pump Installers

MCS Approved Heat Pump Installers
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Air Source Heat Pump, Solar Panels and Battery Offer

Air Source Heat Pumps

Installation across Scotland
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  • Eco Friendly
  • Reduce Emissions
  • Affordable Off Gas Heating
  • Up To £9k Grants Available
  • + £7.5k Interest Free Loan
  • Pair With Electric Heating
  • Pair With Solar Panels and Battery

Air Source Heat Pump Scotland

Air source heat pumps have been around for decades however they have become more popular in Scotland over the last few years, more commonly found in countries such as Russia, The United States of America and Scandinavia.

The recent surge in popularity in Scotland has been due to the rise in the cost of living, in particular household energy bills as well people wanting to make their homes more eco friendly. Sales of heat pumps in the European Union between 2020 and 2021 increased by 35% with 94% of installations being air source heat pumps as opposed to ground and water source systems.

Since 2020, Scottish household electricity costs have been increasing and have reached an all time high in the last year, which has led to consumers looking at renewable energy solutions such as solar panels, battery storage systems and air source heat pumps.

Air source heat pumps, especially air to water systems are one of the most energy efficient and affordable ways to heat your home if operating a non gas heating system such as electric storage heaters, an electric boiler system or any other type of LPG, oil or electric heating.

MCS Approved Heat Pump Installers

The installers who work with Home Renewables Scotland are MCS approved heat pump installers with over 200 positive reviews on the Energy Savings Trust, that we can showcase during your home survey. We only work with the best installers not sales companies, who are well established, provide a customer centric service and have all of the essential accreditations.

The companies we work with only supply and fit air source heat pumps as ground source systems often don’t provide a strong return on investment and require vigorous maintenance to keep them working well. The installation can also be a nightmare, often with lots of groundwork and upheaval required.

Rest assured the installers have vast experience installing all types of heating and renewables including solar panels, gas central heating and electric heating meaning they can provide you with a fully comprehensive installation for all types of renewable products.

What is an Air Source Heat Pump?

Air source heat pumps are modern heating systems that provide hot air and water for your home. The air systems are known as air to air heat pumps that work like an air conditioning unit providing both warm and cold air.

The air to water systems heat your home like traditional central heating by transferring hot water through your pipework to heat radiators, heaters and also to provide hot water for your showers, baths and taps.

How Do Air Source Heat Pumps Work

Air source heat pumps have often been called a fridge in reverse, which is a the perfect way to summarise how they work. They absorb heat from the air outside (even in the coldest of climates with temperatures below zero) and distribute the heat inside your home via hot air or hot water.

Air source heat pumps use electricity to extract heat from the air outside which is absorbed into a fluid which proceeds to go through a heat exchanger inside the heat pump, this increases the temperature, transferring this heat and fluid into hot water.


Quality Heat Pump Installation is Paramount

The performance of air source heat pumps is very much down to the quality of the installation and suitability of the system to your home. 

Bad examples of suitability include some companies installing air source heat pumps in flats! Yes we have seen this!

Poor installation causes issues in performance in terms of energy efficiency as well as issues with the functioning of the pump itself, which can then cost you money in maintenance, repairs and running costs.

You also need to ensure there is somewhere suitable for the installation, another reason why flats are not suitable. Somewhere outside your home with a reasonable amount of air flow such as a wall in your garden that has secure fencing around it is normally suffice.

In order to uphold your manufacturer warranty, all systems must be installed by a certified heat pump installer. 

Types of Air Source Heat Pumps

There are different types of air source heat pumps. 

First of all, as previously mentioned there are different types of methods of heating, either air to air and air to water systems. 

Then there are different types of heat pump systems which are known as monobloc or split systems. 

Air to Air Heat Pumps

Air to air systems produce both warm and cold air just like a traditional air conditioning system, they require the heat pump to be installed outside as well as some air conditioning units indoors. These heat pumps transfer heat from the outside air to the inside of a building. The warmed air is then distributed through a home’s existing ductwork or by using air handlers. Air-to-air heat pumps are commonly used for space heating and cooling.

Air to Water Heat Pumps

Air to water heat pumps work just like gas central heating and wet electric heating systems. Hot water is pumped through your pipework to your radiators, boiler and taps. Air to water heat pumps work best with some kind of water tank or cylinder to store hot water. Air-to-water heat pumps are versatile and can be used for both heating and cooling.

Hybrid Heat Pumps

Hybrid heat pumps combine the features of an air source heat pump with a traditional heating system, such as a gas boiler. These systems automatically switch between the heat pump and the backup heating source based on factors like outdoor temperature and energy prices. This allows for greater efficiency and flexibility.

Monobloc Heat Pumps

A monobloc heat pump is much like a boiler in the regard it is a one block system, meaning all the parts for it are inside the system which is located outside your home. Monobloc heat pumps have all the components, including the compressor, housed in a single outdoor unit. These units are easy to install since they don’t require refrigerant piping between indoor and outdoor components.

Split System Heat Pumps

As the name suggests, a split system heat pump can heat separate locations and tends to installed inside your home, although they can have separate indoor and outdoor units. The outdoor unit contains the compressor and condenser, while the indoor unit is responsible for air distribution. This configuration is common in both air-to-air and air-to-water heat pump systems.

Popular Heat Pump Brands in Scotland

Listed below are the most popular air source heat pump brands in Scotland, the installers we work can provide you with more detailed information on all of them.

Mitsubishi air source heat pumps for domestic properties are named the Ecodan range which has an A++ ErP rating across all of their models. 

It’s one of the most popular heat pumps sold across the globe and is available up to 14kW including 4.5kW, 5kW, 6kW, 8.5kW, 11.2kW and the maximum 14kW output.

There are options for monobloc, air to water and hybrid systems that work alongside your existing central heating system.

Daikin manufacturers heat pumps, air conditioners, air purifiers and ventilation systems.

Their air source heat pumps are known as Altherma pumps available as heating, cooling and hot water systems.

Valliant’s air source heat pumps are designed to provide efficient and environmentally friendly heating solutions for homes. Specific models and features may vary, so it’s recommended to check Valliant’s official website or contact their customer support for the most up-to-date and accurate information.

We can also explain more about the features of specific makes and models during your free home survey.

The most popular type of Grant air to water source heat pump is the Aerona³ which is available in four models up to 17kW. 

There are options of a 6kW, 10kW, 13kW and 17kW. The Grant Aerona³ has the highest energy efficiency rating (ErP) of A+++ and is quiet mark awarded which is only given the very quietest of modern technology.

Vokera by Riello air source heat pumps are called the NXHM which is specifically made for domestic use and provides warmer temperatures than the other pumps listed of up to 65°C.

For this reason, Riello NXHM air source heat pumps are a popular choice for underfloor heating, homes with large radiators and for heating swimming pools.


Mitsubishi Air Source Heat Pump
Home Renewables Scotland

Best Air Source Heat Pump Scotland

There really isn’t any one best air source heat pump available in Scotland. It all comes down to your circumstances and requirements, some people are looking for the most affordable system in terms of upfront costs, others are more concerned with performance and efficiency, the best heat pump will vary depending on various factors.

There is more demand for Daikin and Mitsubishi heat pumps due to their brand names, performance and reputation for lasting for decades.

Mitsubishi Air Source Heat Pumps

Mitsubishi Electric is a well known manufacturer that produces air source heat pumps under the brand name Ecodan. The Ecodan range is designed for domestic properties and is known for its energy efficiency, reliability, and versatility. Here is some information on Mitsubishi heat pumps:

Ecodan Range:

Mitsubishi’s ASHPs for domestic use fall under the Ecodan range. These systems are available in various models, offering different heating capacities to suit the specific requirements of different homes.

A++ ErP Rating:

As stated above, the Ecodan range typically boasts an A++ Energy-related Product (ErP) rating across all of its models. This rating reflects high energy efficiency, making them an environmentally friendly heating solution.

Wide Range of Capacities:

Mitsubishi Ecodan ASHPs are available in different capacities, including 4.5kW, 5kW, 6kW, 8.5kW, 11.2kW, and the maximum 14kW output. This allows homeowners to choose a system that matches their heating needs.

Before selecting a Mitsubishi Air Source Heat Pump, it's crucial to assess your specific heating needs, the characteristics of your property, and any potential integration with other renewable technologies.

Daikin Air Source Heat Pumps

Daikin is a leading global manufacturer of heating, ventilation, and air conditioning (HVAC) equipment, including air source heat pumps. Daikin’s ASHPs are known for their energy efficiency, advanced technology, and reliability. Here are some information of Daikin heat pumps:

Altherma Range:

Daikin’s ASHPs are often part of the Altherma range, which includes various models designed for space heating, domestic hot water production, and even cooling.

Hot Water Production:

The Altherma range includes systems capable of producing domestic hot water, offering a comprehensive solution for home heating and hot water needs.

When considering a Daikin Air Source Heat Pump, it's essential to evaluate your specific heating and cooling needs, as well as the characteristics of your property. Consulting with our partners who can help you select the most suitable system and ensure proper installation for optimal performance.

Air Source Heat Pump Benefits

Listed below are some of the benefits of installing an air source heat pump in your home:

One of the main reasons people buy air source heat pumps is to help their home become more eco friendly and energy efficient.

Air source heat pumps are up to 300% more efficient that standard gas boilers. 

All types of heat pumps significantly reduce your homes emissions. 

Installing a heat pump reduces your emissions by at least 20% vs a gas boiler, in some cases over twenty three tonnes of CO2 over a decade. 

Air source heat pumps are one of the most affordable types of non gas heating systems. When compared to oil central heating and standard electric heating, heat pumps normally come out on top in terms of running costs.

Government grants are available through Home Energy Scotland. Grants are 100% non re-payable with up to £7.5k of funding available in areas with mains gas and up to £9k of funding for rural areas not on the gas grid.

Interest free loans additional to Government grants are available for up to £7,500.

Air source heat pumps are one of the most affordable types of electric heating and they can work with your homes existing electric heating system.

Pair your heat pump with solar panels and battery storage to potentially take your home completely off the grid and make it as eco friendly as it gets.

Package deals available from £118 per month for an air source heat pump, solar panels and battery storage.

Home Renewables Scotland

Air Source Heat Pump For Hot Water

The temperature generated by a heat pump is slightly lower than a gas boiler for example, so if you are running a hot bath, you will not need to run as much cold water and your radiators will never become piping hot. An air source heat pump (ASHP) can be an efficient and sustainable solution for providing hot water in residential and commercial settings.

Air Source Heat Pump and Solar Panels

Air source heat pumps and solar panels make a great combination if your desire is to make your home more energy efficient and to perhaps come off the grid completely. Combining an air source heat pump with solar panels is a popular and effective way to create a more sustainable and energy-efficient home. This integrated approach allows you to harness energy from both sources, taking advantage of renewable resources for heating and electricity. 

Advantages of Combining a Heat Pump with Solar Panels:

Energy Efficiency:

The ASHP and solar panels work together to provide a more energy-efficient heating and power solution. The electricity generated by solar panels can be used to power the heat pump, reducing reliance on the grid.

Reduced Energy Bills:

By generating your electricity through solar panels, you can reduce your dependence on grid electricity and, in turn, lower your energy bills.

Carbon Emissions Reduction:

Both air source heat pumps and solar panels contribute to a reduction in carbon emissions. By utilizing renewable energy sources, you help decrease the environmental impact of your home.

Year Round Performance:

The combination of ASHP and solar panels provides a year-round solution. In colder months when solar generation may be lower, the ASHP continues to operate efficiently, ensuring consistent heating.

Government Incentives:

In many regions, governments offer incentives and rebates for installing renewable energy systems, including solar panels. Taking advantage of these incentives can further offset the initial investment.


System Sizing:

Properly size both the air source heat pump and the solar panel system to meet your specific heating and electricity needs. Consult with our partners to determine the optimal configuration for your home.

Storage Solutions:

Consider incorporating energy storage solutions, such as batteries, to store excess electricity generated by the solar panels for later use, especially during periods of low sunlight.

Orientation and Shading:

Ensure that the solar panels are properly oriented to capture sunlight effectively and that shading is minimised. This maximises the electricity generation potential.

Professional Installation:

Both the air source heat pump and solar panel systems should be installed by qualified MCS installers to ensure optimal performance and compliance with local regulations.

Air Source Heat Pump and Solar Battery Storage

Much like combining heat pumps and solar panels, air source heat pumps and solar battery storage work well together. Ideally if you have all three products, your solar panels and battery will provide plenty of energy to power your heat pump, heating system and the rest of your homes appliances.

Air Source Heat Pump and Electric Boiler

Air source heat pumps can be paired with your existing wet electric central heating system sending hot water to your radiators and water tank. Combining an air source heat pump (ASHP) with an electric boiler is a hybrid heating system that offers flexibility and improved efficiency. This combination is often used to optimise heating performance, especially in regions where electricity is a primary energy source.

Advantages of Combining a Heat Pump with Electric Boiler:

Efficiency Optimization:

An air source heat pump operates efficiently in milder temperatures, utilising ambient air to extract heat. During colder periods, the electric boiler can complement the ASHP to maintain optimal heating efficiency.

Year Round Performance:

The combination ensures a consistent and reliable heating performance throughout the year. The ASHP handles the majority of the heating load, and the electric boiler kicks in when needed, such as during colder weather or peak demand.

Energy Cost Reduction:

By using your air source heat pump as the primary heating source, especially during milder seasons, you can take advantage of its higher efficiency and potentially reduce overall energy costs. The electric boiler is used strategically to minimise high electricity usage.

Environmental Impact:

Air source heat pumps are more environmentally friendly than traditional electric heating methods. Combining a heat pump with an electric boiler allows for a greener and more sustainable heating solution, reducing reliance on non-renewable energy sources.

Flexible Operation:

The system can be configured to operate based on the most cost-effective and energy efficient conditions. Smart controls and monitoring systems can be implemented to optimise the use of both the air source heat pump and electric boiler.


System Design:

Proper system design and sizing are crucial to ensure that the ASHP and electric boiler work seamlessly together. The system should be designed to meet the specific heating needs of your home.

Smart Controls:

Implementing smart controls and zoning systems can help optimise the operation of the air source heat pump and electric boiler based on temperature conditions and energy costs.

Professional Installation:

Both your air source heat pump and electric boiler should be installed by qualified MCS installers to ensure proper integration, compliance with regulations, and optimal performance.

Energy Efficiency Rating:

When choosing an air source heat pump and electric boiler, consider their individual energy efficiency ratings. Higher efficiency ratings contribute to overall system efficiency.

Combining an air source heat pump with an electric boiler provides a balanced and efficient solution for home heating, allowing you to capitalise on the strengths of each system for optimal performance and comfort.

Air Source Heat Pump Grants Scotland

Government Grants and Interest Free Loans Scotland 2023 

Planning Permission For An Air Source Heat Pump in Scotland

Lots of people ask do air source heat pumps require planning permission in Scotland?

The answer is most likely no, as long as it’s the only air source heat pump installed on that building. The official answer is “one air source heat pump is permitted on a building or within the curtilage of a building.” 

Each circumstance is different and we will discuss if you will require planning permission during your free home survey.

Cost Of Air Source Heat Pump in Scotland

The exact cost of an air source heat pump is impossible to predict without completing a home survey. We need to discuss the make, model and type of system thats most suitable for your home, as well as your installation requirements including what existing central heating system you already have.

Air source heat pumps start at around £10,000 ranging up to £18,000 depending on the make and mode, installation requirements and other factors.

There are government grants and interest free loans available for heat pumps making the cost more affordable and possibly avoiding any upfront payment.

Air Source Heat Pump Grant Scotland

Apply for a Government grant via Home Energy Scotland of £7,500 for main gas and £9,000 for rural (off gas) areas.

Home Renewable Scotland’s partners can assist you the whole way through your application and complete the supply and installation after your funding has been awarded.

Because you are having a heat pump installed, you will qualify for funding for solar panels and battery storage.

Interest Free Loans from Home Energy Scotland

Interest free loans for air source heat pumps are also via Home Energy Scotland for up to £7,500. Once again the installers we partner with will be on hand to guide you through the full process. 

If you have any questions about heat pump grants, call 0131 381 8533.

Package - ASHP, Solar Panels and Battery Storage


Air source heat pump, solar panels and battery storage supplied and fitted from £118 per month. 

Air Source Heat Pump F.A.Q

It depends, but on most occasions you do not require planning permission to install and air source heat pump in Scotland. As long as it’s the only one at your property and is installed in the correct locations.

Yes, there are government grants available in Scotland if you are purchasing an air source heat pump. Funding of £7,500 for mains gas areas and £9,000 for non gas rural areas can be awarded through Home Energy Scotland’s grant and loan scheme.

As previously mentioned, part of the stipulation for planning permission to awarded for your air source heat pump installation is that is at least 1 metre away from your neighbours property.

Most the time air source heat pumps are a fantastic investment for homes in Scotland. Air source heat pumps, specifically air to water systems are one of the most efficient and cost effective methods of non gas central heating.

If you have mains gas central heating this will always be the cheapest way to heat your home. There are some people however who still choose to install heat pumps for environmental reasons, if this is your motivator then heat pumps are a the best option.

Yes, although rather than the vague description of “bigger radiators” you need ones that are suitable for the system. Some heat pump installers will install systems and connect them with existing wet central heating. This is not advised, we always suggest that you have new pipework and possibly new radiators installed to ensure the best performance.

Yes, microbore pipework in radiators generally means your pipework is under 15mm in diameter which will effect the flow of hot water and performance of your heat pump system. You can install things such as volumisers, however, it is really best to have new pipework installed that is more suitable.

As stated above, it is hard to provide the cost to install an air source heat pump without knowing your homes exact requirements. The average cost to install an air to water air source heat pump is around £14,000, this average is based on a typical three bedroom house in Scotland.

Air Source Heat Pump Installer Scotland

home renewables scotland

Home Renewables Scotland (Edinburgh)

64 Cumberland Street,

0131 381 8533

Home Renewables Scotland (Aberdeen)

The Silver Fin Building,
AB11 6BD
01224 007 388

Home Renewables Scotland (Glasgow)

20-23 Woodside Place,


G3 7QL

0141 673 8740
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