All you need to know about getting a heat pump with Octopus Energy

Octopus Energy is working with Lloyds to help make your home greener.

As a Lloyds customer, there’s never been a better time to switch to green heating. You could claim a £5,000 government grant towards your heat pump AND £1,000 cash back thanks to Lloyd’s Bank Eco Home Reward


Introduction to heat pumps

Air-source heat pumps give you comfortable, consistent heating, hot water and cooling. But with…

A heat pump illustration
  • Less energy: Heat pumps use 4x less energy than even the most efficient boilers to generate the same amount of heat.
  • Less carbon: That efficiency means you’ll instantly slash your heat carbon footprint by 75%. Plus, they run on electricity, which gets greener every year.
  • Less maintenance: A heat pump can last 20 years – about twice as long as a boiler – and needs less pricey maintenance.

Our standard heat pump installation costs around £3,000 - £4,000 (including the government grant and excluding the Lloyds Eco Home Reward) and covers most UK homes. Sign up now to see if your home is a good fit for a heat pump and generate an estimate cost.





A photo of an Octopus Energy heat engineer

We're your heat pump one-stop-shop

We'll handle every bit your move to a heat pump. From your survey, government grant application, quote and installation all the way through to aftercare service.

That means a quicker, smoother experience for you, help from the same expert team, and better value for money.


Control your heat pump from our app

Proven tech for the home of the future

Heat pump technology is 160 years old, and can work well in most homes already – making it the ideal replacement for your old boiler.

  • Combines heating, hot water and cooling 
  • Connects to most existing piping systems and high temperature radiators 
  • Loaded with smart capabilities, and works with home tech from solar panels to batteries.

Control your heat pump from our app

Smart heating at your fingertips

Control your heat via our free app. It's just as easy, if not easier, than using your boiler.

After your installation, our friendly engineers will get you set up and show you the ropes. We'll always be on hand to help with any questions.


What is included in the package?

Frame 36

Basics of heat pumps

How does a heat pump work?

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Watch this helpful video that gives you the low down on air sourced heat pumps

What is a standard heat pump installation?

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Heat pumps can work in nearly all homes, but as we continue to scale our offering, we’re installing in the types of homes that are best set up to get a heat pump immediately. By targeting these homes first, it means we can ramp up more quickly, and get our installations down to a fine science. Then we’ll start in homes with slightly more specialised needs and customers can reap the benefit of our experience and hopefully some cost savings too!

A 'standard install' home is a fairly common in the UK, we define it as a home built since the 1930s (the majority of UK homes), well-insulated and under 200m² in size. Every home is unique though so that is why a survey is essential to assess your home.

How does the Boiler Upgrade Scheme work?

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The government has launched a new scheme called the Boiler Upgrade Scheme, which means you can get a £5,000 grant towards the cost of installation. To qualify, you need to have an Energy Performance certificate from the past 10 years that demonstrates you meet their insulation criteria (which most homes do).

We’ll be able to check this for you and if you qualify, process the grant and deduct this from the cost of your installation.

Do heat pumps work in all homes?

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Most homes are already suitable for heat pumps as they are - you only need an outside space big enough outside to park a moped. We're gearing up to install on a large scale but we're initially focusing on really common types of UK homes: 2-4 bed, well insulated ones from the 1930's onwards.

Heat pump solutions for flats aren't quite there right now, but there are still other greener solutions - check out Tepeo's Zero Emissions Boiler or Next Gen's electric wallpaper, which you can find out more about on our Works With Octopus programme.

Do I need radiators?

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Heat pumps work a different way to gas boilers - they still keep you as warm, but they don’t burn gas for a quick burst of heat, and instead suck the heat from air so they heat and build warmth over time. Heat pumps are designed to work well with a radiator-based heating set up. In an average sized room (usually about 3 meters by 4 meters) a standard twin wall radiator setup should be more than enough. Occasionally, you might need to replace a smaller radiator with a slightly larger one, or if you have any really big rooms, you might need a few extra. Again it’s quite straightforward (it typically costs around £200 and an hour or so to fit) and we can do this at the same time as a heat pump installation. It’s worth mentioning that heat pumps also work with underfloor heating.

Do I need insulation?

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Insulating your home is always a good idea, as it means whatever boiler you have will work more efficiently. Generally homes with an Energy Performance Certificate Rating of D and above, with at least a couple of types of insulation (wall, loft or double glazing) should be well insulated enough already, which is most of the homes in the UK. If not you may have to insulate first, which is usually quite straightforward (cavity wall insulations costs around £500 and takes 4 hours on average) and we can help arrange this for you.

How much does a heat pump cost to run?

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This depends on a number of things like how big your home is, how well insulated it is and how much heating and hot water you need. On average, we found that a well installed heat pump costs around the same to run as a gas boiler and they can be much cheaper if you use a smart tariff to make the most of cheaper "off peak" power.

The good news is you don’t have to figure this out yourself - we’ll give you a personal cost breakdown, so you can see how much your new heat pump is likely to cost (and compare it to your current boiler) before you decide to get one installed. We'll also recommend the best tariff your new heat pump installation.

How much room does a heat pump need?

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The outside bit of a heat pump is roughly 1m x 1m x 2m (or to help you visualise - the size of a moped) and an inside hot water tank, which is 2m x 1m x1m (the size of a modern fridge freezer), which you can place anywhere in your home like a cupboard or loft (although the closer to the outside the better). However, new space saving technology is being developed all the time, so expect this to come down considerably in future (more on this to follow!)

Do I need to be an Octopus Energy customer to get a heat pump installed with you?

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No, anyone can get a survey and installation with us.

Do heat pumps work in Winter?

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Yes! Heat pumps are really popular in the Nordics (where it’s pretty cold), which shows they work well even when it’s below 0.

They can work in extremely cold temperatures, as low as -20 °C. When it is very cold outside, the heat pump can’t extract quite as much energy from the atmosphere as usual – which means it has to use a bit more electricity, or in other words is a bit less efficient - but your home will still be able to get to warm, cosy temperatures.

It’s a bit like a gas boiler - when it’s colder, you’ll burn more gas. We see temperatures below -10°C only a few days per year, and even at these temperatures, heat pumps still function more efficiently than gas boilers do.

An introduction to heat pumps

A customer gets a heat pump installed

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Want to learn more about heat pumps?

Explore FAQs and videos over on our Heat Pump info hub.

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Hey I'm Constantine, welcome to Octopus Energy!

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