Air Source Heat Pumps

Heating your home

WarmFlow Zeno Air Source Heat Pumps – A high efficiency of up to 555%

Air source heat pumps are located on the outside of your property and work efficiently to extract heat energy from the air even if the temperature outside is really cold. Our air source heat pumps blow air through a highly finned evaporator coil and use Mitsubishi inverter driven technology to reduce energy usage.

When compared with an electric heating system, air source heat pumps can reduce heating costs by as much as 50%. Each property has unique heating requirements and so we will evaluate your requirements to find the best system suited directly to your needs.

Heat Pump Servicing – From our fully trained and qualified engineers

For heat pumps we recommend a yearly system check. This involves cleaning filters and checking system pressures to make sure that your heat pump is performing as efficiently as possible.

In addition to maintaining the efficiency of your system this check up will enable you to maintain the safety and integrity of your system.

We provide peace of mind so you can rest assured that your heat pump is running smoothly all year round ensuring that you get the best from your heating system. If you are interested in heat pump servicing, please contact us.

What is an air source heat pump?

An air source heat pump (sometimes referred to as an air-to-water heat pump) transfers heat from the outside air to water. This in turn heats rooms in your home via radiators or underfloor heating. It can also heat water stored in a hot water cylinder for your hot taps, showers, and baths.

How does an air source heat pump work?

Heat from the air is absorbed into a fluid. This fluid then passes through a heat exchanger into the heat pump, which raises the temperature and then transfers that heat to water.

Is an air source heat pump right for me? 

Air source heat pumps are suitable for many types of homes. They’re the most common type of domestic heat pump in the UK, with tens of thousands of installations.

You can use our online assessment tool, Go Renewable, to find out what renewable technologies are suitable for your home

information in the table below:

You can use our online assessment tool, Go Renewable, to find out what renewable technologies are suitable for your home.

There are a few things you should consider before deciding whether a heat pump is right for you.

What type of air source heat pump should I choose?

There are two types of air source heat pumps: monobloc and split systems.

A monobloc system has all the components in a single outdoor unit, with pipes carrying water to the central heating system and a hot water cylinder inside your home.

A split system separates the components between indoor and outdoor units.

Whether a monobloc or split system is right for you will depend on your budget and the space available.

Monobloc systems tend to be cheaper and quicker to install. They don’t take up as much space inside your home, but they’re generally slightly less efficient than split systems. Split systems can be more efficient because some of the heat transfer takes place inside the building where it’s warmer, resulting in less heat being lost.

Do I have space for an air source heat pump?

You’ll need somewhere outside your home where a unit can be fitted to a wall or placed on the ground. It must have some space around it to allow a good flow of air. If you’re not limited by space inside your home, it may be worth the extra cost of installing a split system. Your installer should be able to talk you through your options and help you choose the design that works best for you .

What if I don’t have any outdoor space (eg I live in a flat)?

Compact heat pumps are specifically designed to heat small, well-insulated modern flats and homes. These only need a cupboard with around 80cm x 80cm floor space in the flat, and this should be near an exterior wall.

Another potential option is an These are more oft en used to heat smaller properties such as park homes or flats. Other solutions are only suitable if you’re in a flat with shared services where each flat is provided with heating communally.

How do I store hot water?

A standard heat pump doesn’t provide hot water on demand like a combi boiler, so you’ll need a way of storing hot water for when you need it, like a hot water cylinder.

Hot water cylinders

The size of hot water cylinder depends on the amount of hot water your household typically uses. They can usually fit inside any cupboard that measures at least 80x80cm.

Other options

If you don’t have space for a hot water cylinder, you still have options. Some

th the heat pump providing heating and a boiler providing hot water on demand.

You could also consider  which takes up less space than a hot water cylinder.

Instantaneous hot water heaters are also available and can be installed under your kitchen sink to provide a smaller amount of hot water.

Why would I want an air source heat pump?

There are several benefits of air source heat pumps:

What other things do I need to consider when choosing an air source heat pump?

As with any heating system, installing an air source heat pump requires consideration. You should think about:

How much does an air source heat pump cost to install?

The typical cost of installing an air source heat pump is around £14,000.

How much does an air source heat pump cost to run and will it save me money on energy bills?

Running costs depend on how your heat pump is designed and how it’s operated. Savings on your energy bill also depend on the system you’re replacing.

Heat pump running costs can vary depending on:

For more information, head to our in-depth guide to find out how to get the most out of your heat pump and maximise your savings.

Here are the potential annual savings of installing a standard air source heat pump, including any recommended radiator upgrades, in an average sized, three-bedroom semi-detached home.

What funding is available for air source heat pumps?

If you live in England and Wales, you can get £7,500 towards an air source heat pump with the

If you live in Scotland, you might be able to

If you live in Northern Ireland, there isn’t a specific grant currently available but you can still ‘get heat pump ready’ and apply for funding for insulation via

How do I get an air source heat pump?

It’s important to check if you need to apply to your local planning authority for permission. Most heat pump installations are considered ‘permitted developments’, meaning no permission is needed.

However, there are exceptions, and it’s best to check with your local planning department before proceeding. This is especially important if you live in a listed building or conservation area.

Top tip: get quotes from at least three installers to help you find a better deal.

Cut through the hot air on heat pumps

We debunk some common myths about heat pumps. Get the facts at our heat pump hub.