Aira vs. Octopus heat pumps. Which one is right for you?

Key takeaways

• With an industry-leading SCOP of 4.7, intelligent self-monitoring, and seamless app and thermostat control, Aira outperforms the Octopus Cosy heat pump on core performance.
• Aira’s 15-Year Guarantee covers comfort, performance, product and installation. Octopus offer a 5-10 year product warranty.
• From Scandi-inspired aesthetics to software that updates itself, Aira is designed to look good, run intelligently and work effortlessly with a host of clean energy tariffs. Even Octopus’.

Octopus shares our vision of making clean energy and clean energy-tech accessible to every home. Like Aira, they design, manufacture, and install their own heat pump: the Cosy. But that’s where the similarities end and the real choice begins.

In this article, we’ll break down the key differences between Aira and Octopus, and compare the Aira Heat Pump with the Octopus Cosy to see how they stack up.

Head-to-head comparison: Aira vs Octopus

Aira

From free home energy assessment and design to seamless installation and aftercare, everything’s included in your switch with Aira. And, at the heart of it all, is our intelligent Aira Heat Pump.

Why are people choosing Aira Heat Pumps?

Head-turning. Energy-saving. Ultra-efficient. The Aira Heat Pump is not only designed to complement your home, but engineered to cut energy bills, slash CO₂ emissions and keep your home cosy. Even in sub-zero temperatures. 

Let's look at some of the reasons why thousands across the UK are ditching their boiler for an Aira Heat Pump. 

• Optimised with Aira Intelligence: Automatically adapts to your home and the weather for maximum efficiency, comfort and savings.
• Covered by the 15-Year Aira Guarantee: Complete peace of mind with industry-leading protection and support. Includes the 15-Year Comfort Guarantee, 15-Year Product and Installation Warranty and 15-Year Performance Guarantee.
• Designed, built and installed by Aira Experts: We handle everything – from manufacturing to installation – so you get a tailored system designed for lasting performance and reliability.
• Compatible with various clean energy tariffs: Pair with our smart Aira Zero tariff or a growing list of Octopus Energy tariffs to maximise your savings and reduce your home’s CO₂ emissions by 100%.

Head-turning Aira Heat Pump features

• Remarkably quiet: The Aira Heat Pump is designed to blend right in. At just 46-51 decibels,* it’s a noise that fades into the background. So you can forget it’s even there.
• A+++ energy-rated: The Aira Heat Pump is efficient. Very efficient. That’s why it’s been awarded the industry's highest possible energy class rating (A+++).*
• Industry-leading SCOP (4.7): There’s an efficiency rating called SCOP (Seasonal Coefficient of Performance). A typical boiler? 0.9. An average heat pump? 3.5. The Aira Heat Pump? An impressive 4.7.
• Uses natural R290 refrigerant: Unlike other heat pumps, ours uses R290 refrigerant. It’s natural, efficient, non-toxic and free of ozone-depleting properties.
• Timeless Scandi design: Distinctive. Beautiful. Timeless. The Aira Heat Pump system’s simple, clean Scandi design blends seamlessly with any home. 
• Remote monitoring: The Aira Heat Pump is so intelligent that it constantly monitors its own performance, identifying inefficiencies and resolving issues automatically. If it detects something it can't fix, it alerts our team, who fine-tune it remotely. So you can enjoy a cosy home without interruption.
• Seamless control: The Aira Heat Pump takes pretty good care of itself. But when you want to take control, you've got two smart ways to do it: the Aira Thermostat and the Aira Home Energy app. The app lets you fine-tune your perfect temperature, check your energy use, manage hot water, monitor savings and track efficiency. The sleek Aira Thermostat allows you to see and set your temperature and activate extra hot water.

Aira pricing and installation

No two homes are the same. That’s why we design every Aira Heat Pump to match your home’s unique layout, insulation and heating needs.

Because each system is bespoke, we need more details about your home before giving you a quote. But once we do, it’s locked. Even if we later discover you need a bigger heat pump after our technical design. And if you need less? We’ll lower your quote accordingly.

There’s nothing to pay upfront for your system and flexible finance options let you spread the cost with affordable monthly payments. Plus, since every Aira Technician is MCS-approved, we’ll handle the £7,500 government grant for you, and take it straight off your quote. Simple.

And, because we handle every single aspect of your switch, you get an all-inclusive plan and our industry-leading 15-Year Aira Guarantee. So you can be just as confident in your heating as we are.

Octopus

Octopus Energy’s Cosy heat pump is designed and built in the UK, and offers a more efficient alternative to a boiler. But how does it compare to the Aira Heat Pump? Let’s take a closer look.

Octopus' Cosy heat pump system

The Cosy heat pump integrates with the Octopus Energy app, providing users with effortless control over their heating and hot water systems. The Cosy system includes an outdoor unit, a hot water cylinder, the Cosy Hub for smart communication, and up to four Cosy Pods to monitor temperature and humidity throughout the home.

Let's look at some of the Cosy's key features.

• Efficient performance: With a Seasonal Coefficient of Performance (SCOP) of 3.4 to 3.6, the Cosy offers reliable efficiency. Though less than Aira’s 4.7.
• Remote monitoring: Octopus Energy offers remote monitoring of the Cosy system, ensuring any issues are promptly addressed by their in-house team. 
• Smart integration: The system pairs seamlessly with the Octopus Energy app, allowing users to control heating and hot water schedules, monitor energy usage, and adjust settings remotely.

Octopus pricing and installation

Like Aira, Octopus manages every part of your switch, from home survey to aftercare. That helps them offer lower prices than many other installers. According to their website, as of April 2025, the Cosy heat pump starts at £4,300 for a standard installation, with higher prices for larger or less insulated homes. 

They also claim that most of their quotes are lower than the UK’s average heat pump cost of £5,049 (Jan '25 gov' data), including the BUS grant.

Octopus also provides a wide range of services, including planning support, EPCs, asbestos testing and ongoing care.

Aira Heat Pump vs Octopus Cosy heat pump: Which heat pump should you choose?

Both Aira and Octopus are pushing heat pumps into the mainstream. And that’s a good thing. But if you’re looking for a smarter, simpler, more stylish all-in-one solution backed by industry-leading guarantees and cutting-edge tech, Aira pulls ahead.

Sure, Octopus Energy price their heat pumps below the industry average and offer seamless integration with their own energy tariffs. But the Aira Heat Pump is more efficient, smarter and comes with total peace of mind thanks to the 15-Year Aira Guarantee. So, if your home’s not cosy, or something goes wrong, we’ll put it right.

And, the Aira Heat Pump works seamlessly with a growing list of Octopus Energy tariffs. Including Octopus Cosy, Octopus Go, Octopus Flux and Octopus Agile.

So, if you’re ready to ditch your gas-guzzling boiler, cut your bills, and take control of your home’s energy, simply answer a few quick questions about your home's setup. Then, we can crunch the numbers and begin building your tailored quote.