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Ground source heat pumps vs air to air heat source - which is best?

A complete guide to ground source & air source heat pumps

We are frequently asked about the pros and cons of air to air heat pumps systems when compared to ground source heat pumps. This useful guide will highlight the positives and negatives before you commit to a decision for your home heating and cooling.

We understand that choosing the right heating system for your home can be a daunting task. That’s why we are here to help you navigate through the options and find the best solution for your needs. In this comprehensive guide, we’ll delve into the differences between ground source heat pumps and air to air heat source systems, highlighting why the latter could be a better choice for you.

What is an air heat pump system?

An air heat pump system is a highly efficient heating and cooling solution that extracts heat from the outside air and transfers it indoors. This system works in reverse during the summer months, providing cooling by removing indoor heat and releasing it outside. Air to air heat pumps are known for their versatility, as they can function as heaters, air conditioners, dehumidifiers, and air purifiers all in one.

These systems are particularly effective in the UK climate, where temperatures rarely drop to extremes. They provide immediate comfort by adjusting the indoor temperature to your desired level, making them an excellent choice for year-round use.

The principle behind air to air heat pumps is simple yet effective. They use a refrigerant to absorb heat from the outside air. This heat is then compressed, which increases its temperature. The warm refrigerant is then passed through a heat exchanger to release the heat into your home. In cooling mode, the process is reversed, and the heat pump removes heat from your indoor air and releases it outside.

One of the key advantages of air to air heat pumps is their ability to operate efficiently even at low outdoor temperatures. Modern systems can extract heat from the air even when the temperature outside drops to -15°C. This makes them suitable for use in the UK, where winters are cold but not extreme.

What is a ground source heat pump?

Ground source heat pumps, also known as geothermal heat pumps, extract heat from the ground. This system involves burying a network of pipes, known as ground loops, deep into the earth. The ground remains at a relatively constant temperature throughout the year, providing a stable heat source. In the winter, the system absorbs heat from the ground and transfers it into your home. In the summer, the process is reversed to provide cooling.

While ground source heat pumps are effective, their installation is more complex and costly due to the need for extensive excavation work. Ground source heat pumps utilise the stable temperatures found underground. A mixture of water and antifreeze is circulated through the ground loops, absorbing heat from the ground. This heat is then transferred to the heat pump unit, where it is compressed to increase its temperature. The heat is then distributed throughout your home via a heat exchanger.

In the summer, the system works in reverse, extracting heat from your home and transferring it back into the ground. This ability to provide both heating and cooling makes ground source heat pumps versatile, but the high installation cost and space requirements can be significant drawbacks.

The advantages of air to air heat source systems

The disadvantages of ground source heat pumps

Evaluating the running costs

Air to air heat pumps are much more cost-effective to run compared to ground source heat pumps. The latter requires more energy to extract heat from the ground, especially in colder months. Additionally, the maintenance costs for ground source systems can be higher due to the complexity of their components. Air to air heat pumps, on the other hand, are straightforward to maintain and have lower operational costs, leading to significant savings over time.

The running costs of air heat pump systems are further reduced by their high efficiency. Since they can produce up to 4 kW of heat for every 1 kW of electricity consumed, homeowners can enjoy lower energy bills while maintaining a comfortable indoor environment. In comparison, ground source heat pumps, although efficient, do not offer the same level of cost savings due to their higher energy consumption and maintenance requirements.

Installation cost comparison

The installation cost of air to air heat pumps is significantly lower than that of ground source heat pumps. Ground source systems require extensive drilling and excavation work, which can be costly and disruptive. In contrast, air to air systems are easy to install without the need for extensive groundwork or structural alterations. On average, air to air heat pump installations cost about half of what ground source installations cost, making them a more affordable option for homeowners.

The simplicity of installing air heat pump systems not only reduces costs but also minimises disruption to your daily life. Without the need for major construction work, you can enjoy the benefits of your new system much sooner. This affordability and convenience make air to air heat pumps an attractive choice for those looking to upgrade their home heating and cooling systems.

Air to air heat source air conditioning – the clear advantage

One of the most significant advantages of air to air heat pumps is their ability to provide both heating and air conditioning. This dual functionality ensures that your home remains comfortable throughout the year, regardless of the season. Ground source heat pumps, while efficient in heating, do not offer the same level of cooling. In a world where air conditioning is becoming increasingly essential, especially during hotter summers, air to air heat pumps provide a clear advantage.

The integrated air conditioning feature of air heat pump systems sets them apart from other heating solutions. By offering effective cooling during the summer, these systems eliminate the need for separate air conditioning units, saving space and reducing overall costs. This comprehensive climate control capability is particularly beneficial in the UK, where summer temperatures can at times reach uncomfortable levels which is a growing trend with global warming.

Air to air source heat pumps reviews

Steve P
Homeowner
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Definitely recommend these guys. Gary's service and help is second to none. A real credit to the business. Thanks again
Jitendar Rattan
Homeowner
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Best company excellent service. Gary and Paul both very helpfull.I would definitely recommend this company to everyone.
Sami Habel
Homeowner
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The service was excellent from start to finish. Survey and installation were second to none. Price is reasonable. The communication was excellent as well where our request of availability for installation was taken into account. Highly recommended.
Mark Draper
Homeowner
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Without doubt the best company i have dealt with. From initial enquiry, excellent communication all the way through. The fitter left absolutely no trace that he'd been in the house. Would definitely use again
Dan Williams
Homeowner
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Smooth, quick process from start to finish. Quick delivery and fitting was super simple. thanks again
George Turner
Homeowner
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Gary has been really efficient, clear and helpful at every stage of ordering. Highly recommend
Keith Davenport
Homeowner
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Fabulous product, great customer service, would definitely recommend
Laura Irwin
Homeowner
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Excellent communication , service and product ! Very pleased .
Roger Murphy
Homeowner
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Good company. Great product

Contact us for a FREE cost estimate

When you choose WarmVent for your air to air heat pump installation, you’re not just getting a top-of-the-line product; you’re also getting exceptional service and support. Contact us today for a FREE estimate and discover the benefits of air to air source heat pumps. Our team will come back to you within 24 hours.

FAQs for air heat pump systems

An air to air heat pump system is a heating and cooling solution that extracts heat from the outside air to warm your home in the winter and removes indoor heat to cool your home in the summer. These systems are highly efficient and environmentally friendly, offering a versatile solution for year-round comfort.

The system uses a refrigerant to absorb heat from the outside air, which is then compressed to increase its temperature before being transferred indoors. In cooling mode, the process is reversed to remove heat from inside your home. This dual functionality makes air heat pump systems ideal for maintaining a comfortable indoor climate throughout the year.

Yes, air to air heat pumps are highly energy efficient, using up to four times less energy than traditional heating systems like gas boilers. This high efficiency translates to significant savings on your energy bills and a reduced environmental impact.

The cost of installation varies depending on the size and complexity of the system, but on average, it is about half the cost of installing a ground source heat pump system. WarmVent offers competitive pricing and flexible payment options to make these systems accessible to more homeowners.

These systems require minimal maintenance, typically involving infrequent checks and basic upkeep to ensure optimal performance. Regular filter cleaning and occasional professional inspections are usually sufficient to keep your system running smoothly.

Yes, air to air heat pumps can be connected to solar panels to further reduce their environmental impact and operational costs. This combination of technologies enhances the sustainability and efficiency of your home’s energy systems.

Yes, these systems act as dehumidifiers, air purifiers, and odour eliminators, significantly improving indoor air quality. This is particularly beneficial for individuals with allergies or respiratory conditions, as well as for maintaining a healthier living environment.

Absolutely. Air to air heat pumps are ideal for the UK climate, providing efficient heating during the winter and effective cooling during the summer. Their ability to operate efficiently at low outdoor temperatures makes them well-suited to the UK’s moderate climate conditions.

Air to air heat pumps have a low environmental impact as they primarily use electricity, which can be sourced from renewable energy. They also significantly reduce carbon emissions compared to traditional heating systems, contributing to global sustainability efforts.

Installation is relatively quick and straightforward, often completed within a few days, with minimal disruption to your home. WarmVent’s experienced installers ensure that the process is efficient and professional, allowing you to enjoy the benefits of your new system as soon as possible.

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