AIR SOURCE HEAT PUMP SCOTLAND

Are Air Source Heat Pumps A Real Alternative?

SCOTLAND’s SMART CHOICE FOR AIR SOURCE HEAT PUMPS

 

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ON AIR SOURCE HEAT PUMP INSTALLATION

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BEST ASHP FOR YOUR NEEDS

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ASHP

WHAT’S THE HYPE ABOUT ASHP’S?

Today, air source heat pumps (ASHP) are some of the most popular choices for heating and cooling homes. They are efficient and effective and can heat water and air in ways that other systems can’t.  The reason they are such a hot topic is that the UK Government are on a mission to achieve a net-zero future which includes phasing out fossil fuel boilers by mid-2030.  

The problem is that they’re often misunderstood and most people have more questions than answers so here at SmartGas we’ve put together some info we hope you’ll find useful.

 

 

 

 

 

Installing air source heat pumps scotland
Installing air source heat pumps scotland

Today, air source heat pumps (ASHP) are some of the most popular choices for heating and cooling homes. They are efficient and effective and can heat water and air in ways that other systems can’t.  The reason they are such a hot topic is that the UK Government are on a mission to achieve a net-zero future which includes phasing out fossil fuel boilers by mid-2030.

The problem is that they’re often misunderstood and most people have more questions than answers so here at SmartGas we’ve put together some info we hope you’ll find useful.

 

does an air source heat pump work in scotland

To help in your research, here are the questions we will be answering:

 

1. What is an air source heat pump?

2. How does an air source heat pump work?

3. Are air source heat pumps cost effective?

4. Can air source heat pumps heat hot water?

5. Do air source heat pumps work in cold weather?

6. How much is an air source heat pump?

does an air s

To help in your research, here are the questions we will be answering:

 

1. What is an air source heat pump?

2. How does an air source heat pump work?

3. Are air source heat pumps cost effective?

4. Can air source heat pumps heat hot water?

5. Do air source heat pumps work in cold weather?

6. How much is an air source heat pump?

What Is An Air Source Heat Pump?

 

An air source heat pump is a mechanical unit (like an air-conditioning unit you see when you go on holiday!) that usually sits at a pre-determined location outside your home or property.

There are 2 main types of air source heat pumps (ASHP):

  1. Air-to-water system
  2. Air-to-air system

An air-to-water source heat pump works by transferring heat from the outside air to water, which then heats your rooms via underfloor heating or radiator, otherwise known as your wet central heating system. It can also heat water stored in a hot water cylinder for baths, showers and hot taps.

An air-to-air setup starts in the same way, transferring the heat from air outside but this time around it transfers that air to ducting which supplies the heat via a fan outlet to heat rooms directly.  It can work in reverse by supplying cool air in the summer months, not that we need that much in Scotland!  It’s worth noting that these systems won’t supply hot water like an air-to-air setup so an alternative like a hot water cylinder with an electric immersion heater will be required.

How does an air source heat pump work?

To make it easier to understand the inner workings, it is sometimes helpful to think of the ASHP as a fridge working in reverse!

Air source heat pumps absorb heat from the air outside into a fluid called a refrigerant.  To then increase the temperature of this fluid it needs to be compressed (thermodynamics), this is then transferred through the heat exchanger to heat the water. This then provides heating and hot water to your home.

Heat pumps can extract heat from air temperatures as low as -15 degrees Celsius, providing heating and hot water all year round. The only electricity used by the heat pump is to run the compressor and circulating pump. This allows it to transfer more heat into your home than it takes to run.

Are air source heat pumps cost effective?

You may now be considering the cost of the setup and additionally, the cost to run.

The cost of an air source heat pump can vary depending on the size of the heat pump, the size of your property, and whether you need to change how you distribute heat around your home.  The best time to consider installing these types of systems would be when you’re already renovating or extending so that installation costs can be kept lower.

When it comes to considering the cost of running an ASHP this can be a whole other subject on its own so we will make it super simple. 

This is based on 3 main factors:

  1. The COP of the unit (coefficient of performance)
  2. The heat requirement for your property
  3. The outside temp of the heat source itself

Generally speaking, an ASHP will be cheaper to run if you’re purely using it for space heating (as your central heating system) compared to an A-rated Gas Boiler.  If it’s also used for hot water then it tends to be more expensive to run and the main reason for this is the maximum heat it can generate.

Air Source Heat Pumps generally produce a maximum heat of 50 degrees Celsius and to bump that figure up, to say 60 degrees, more electricity will be needed to heat the water and therefore running costs increase.  

To make it more appealing, the Government have to come up with a way for more people to transfer to this type of energy generation and therefore you can reduce the cost to you through a Government grant.

 

Can the air source heat pump heat hot water?

 

It’s a valid question and boggles the mind how air heats water, especially at higher temperatures like 50 degrees…

The simple answer is YES.

Through the process described above where the latent heat from the air is taken from outside, compressed (heating it up) and then exchanged/passed heat to warm the water within a cylinder tank.  The water contained within your water tank will heat up over time and will be ready when you need it.  You will of course have to bear in mind that the water will fill with cold water which will then need to be heated once more.

This is the main difference between an air source setup and a combi boiler as the latter gives you hot water on demand.

Do air source heat pumps work in cold weather?

 

It’s fair to say “but if it works by taking the heat out of the air, how will it work in cold temperatures”?

Air Source Heat Pumps operate at optimal levels down to around 7 degrees Celsius.  As the temperature drops the heat pump has to work harder to heat that air (use more electricity) but it can do this down to -15 degrees Celsius and still work fine.

So yes, it does work in cold weather but it’s not as efficient as when outside temperatures are higher.  Technology is always advancing so no doubt it will become more efficient over time.

How much is an air source heat pump?

 

It’s fair to say you will pay more for an ASHP than you will for a gas boiler.  

Typical setup costs can range from £6000 to £15000 but we can narrow this figure down when we come to assess your property.

Although when you compare it to a Ground Source Heat Pump which can cost between £22000-£30000, then you might see why they tend to be the preferred choice when considering heat pumps in general.

As the demand for ASHP goes up along with the supply and as the Government pushes their agenda towards net zero, then it’s safe to say this should drive the price down.

Summary Of Air Source Heat Pumps

 

It’s safe to say there’s a lot to consider when thinking about whether or not you should consider installing an Air Source Heat Pump for your home or property.

They are definitely going to be a thing of the future as the whole world tries to get rid of their addiction to fossil fuels.  Although new technologies around hydrogen gas as a fuel could become a player within our gas boilers.  Boiler manufacturers are making sure they work with both natural gas and hydrogen as they will see the rising demand for ASHP’s as a threat to their business which is understandable.

Generally speaking, if your property is well insulated, setup to integrate with an ASHP setup or you’re about to embark on redevelopment work then it’s definitely worth checking them out.

AIR SOURCE HEAT PUMPS PRO'S

Can be used to heat rooms and hot water
Can qualify for grant's to lower installation costs
Save money on energy bills
Lowers your carbon footprint, helping the environment
Straightforward installation process
Easier to maintain than most heating systems
Long lifespan
No need for fuel storage

AIR SOURCE HEAT PUMP CON'S

Some ASHP's can be noisier than others
Not as efficient in colder climates
Savings can be lower compared to gas
Can be costly to retrofit
Property will need to be well insulated to get the best benefits
Costs more to generate the heat a standard gas boiler can reach
best air source heat pump company scotland

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Ian Borland
Ian Borland
01/12/2020
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We have been lucky enough to have had the service from Smartgas for over three years now to look after my Daughter’s flat and to be honest they have been a “God Send!” A much appreciated service from a concerned Father who can put trust in a company who’s daughters are both living away from home! On top of a regular boiler maintenance service we have used them to gut and refurbIsh an en-suite bathroom (second en-suite due for a refurb soon), replace a large pump for a duplex apartment and replace a complete gas boiler system on top of other plumbing issues. Each and every time they have proved to be true professionals! Great, prompt and courteous service throughout the team even in emergency cases. A particular thank you to Mark, David and Jason (but honestly the whole team) for their dedication into a company that is a credit to the industry! I would have no hesitation in recommending Smartgas for services detailed above. Thank you Smartgas! Ian Borland
Tom Lipfriend
Tom Lipfriend
30/11/2020
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Showed up on time, knowledgeable and helpful. Will be using again for future gas and plumbing work.
Fraser Seywright
Fraser Seywright
24/11/2020
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We had an issue with the plumbing in our bath. The guys at Smart Gas Solutions quickly identified and sorted the issue. They were thoroughly professional and very competitively priced. I have already recommended their services to friends and family. An excellent service.
Mary Ann Julian
Mary Ann Julian
16/11/2020
Verified
Everyone who came (both for the quote inspection and the installation of a replacement boiler) was cheerful and helpful. They listened to what we wanted, gave a competitive quote for the work, and completed the job in one day. When the installation team left, the worksite was immaculate. We would certainly recommend them with enthusiasm.
Maxim Collinson
Maxim Collinson
03/11/2020
Verified
An excellent company. I purchased a new boiler from them which was installed today. The whole thing was very easy, quick and responsibly managed, with Ross doing the installation and he was absolutely excellent. The whole thing was very easy to deal with and our flat was left as neat as at the start. Far better than any boiler installer I've dealt with, and delighted we have a warm flat again!
Malcolm Stewart
Malcolm Stewart
07/10/2020
Verified
Very professional from Start to finish. Jason, Ross and Fraser completed the installation quickly, cleanly and promptly and answered any questions I had. Would recommend this team any day!!
Debbie Lee
Debbie Lee
28/09/2020
Verified
I was really impressed with the professional and efficient service Smart Gas provided. The team were on time, polite and made the whole experience completely stress free. I have already recommended Smart Gas to friends and wouldn't hesitate to use them again if I need any future work. Thanks for a great job!
Alan McMillan
Alan McMillan
26/09/2020
Verified
Installed new boiler last year. Did a great job. This year services boiler and carried out thermostat replacement. Again a good job.
Brendan Fowler
Brendan Fowler
14/09/2020
Verified
Excellent service from start to finish. Smart Gas replaced my older boiler with a new Worcester Bosch system boiler. Their price was competitive and came with a 12 year warranty. The boiler was installed by Ross who was excellent - arrived on time, explained what he was doing throughout the day and left everything clean and tidy. Great service from a local company.
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Smart Gas Solutions Group Limited. Registered Office Address 14 Lugton Circle, Edinburgh, EH17 8GT Company Number: SC626257. Registered in Scotland as a limited company in April 2019

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