With over 6,000 installs, there is no one better to install the cosy heat pump.
Be like Sally and upgrade your old inefficient boiler system to a energy new efficient Octopus Cosy heat pump.
The Cosy isn’t just a heat pump, it’s a complete smart heating system. With app control, room sensors, and intelligent temperature adjustment, it delivers consistent comfort while using significantly less energy than traditional heating.
Unlike traditional heating, a heat pump delivers a constant, even temperature. No more hot and cold swings. Enjoy consistent all year comfort with a heat pump.
Customers on the Cosy Octopus tariff saved an average of £219 last year compared to using a gas boiler operating at 85% efficiency on Octopus Energy’s standard variable tariff. Off-grid customers generally achieve even greater savings. All costs, benefits, and projected savings will be provided in writing during the survey stage.
Absolutely. The Cosy heat pump is built specifically for UK homes and climates, capable of delivering similar water temperatures to a gas boiler, meaning it works with most existing systems, even in colder conditions.
Watch our video to see how a heat pump can start saving you money.
The Cosy heat pump is a next-generation air source system that extracts heat from the outside air and amplifies it using electricity, delivering highly efficient heating and hot water for your home.
Cosy heat pumps can be up to 3–4x more efficient than gas boilers, meaning you get more heat for less energy, and significantly lower carbon emissions.
Yes, but differently. Instead of switching on and off like a boiler, Cosy provides steady, consistent heat, keeping your home comfortable all day without temperature spikes.
Yes, the system integrates with the Octopus app, allowing you to adjust heating, monitor usage, and optimise performance from anywhere.
In some cases, minor upgrades may be recommended (like larger radiators or pipe adjustments) to maximise efficiency, but modern Cosy systems are designed to work with a wide range of existing setups.
Typically around 20 years, which is longer than most traditional boilers, making them a long-term investment in your home.
Yes, Home Energy Scotland Grant Scheme and the UK Government’s Boiler Upgrade Scheme can provide up to £9,000 (non means tested grant) towards installation, making switching more affordable than ever.
As Scotland’s first and the UK’s second Octopus Cosy accredited installer, we don’t just install heat pumps, we specialise in this exact system.
That means:
You’re not just getting a heat pump. You’re getting it installed properly, first time.
From initial survey, claiming funding to final install, we take care of the entire process. As winner of Octopus Cosy Accredited Installer of the Year, we design your system specifically for your home, upgrade radiators or pipework where needed, and ensure everything is set up for maximum efficiency, with full aftercare included.
With advanced Cosy heat pump technology and smart controls, your system is designed to run at peak efficiency all year round. Combined with the right energy tariff and expert setup, you’ll benefit from lower running costs, consistent comfort, and a system that keeps improving over time.
Enjoy complete peace of mind with extended warranties and ongoing support from a trusted local installer. Our team is on hand whenever you need us, ensuring your system continues to perform exactly as it should, long after installation.
We work closely with trusted insulation partners to make sure your home meets all the requirements needed for grant eligibility. From the initial assessment through to installation, we take care of the details and coordinate everything on your behalf.
Whether your property needs loft, cavity wall or other forms of insulation, we ensure the right measures are in place to support your heat pump installation. The result is a home that is more energy efficient, better prepared for your new system, and fully aligned with grant application criteria so the process moves forward without unnecessary delays.
As Scotland’s first and the UK’s second Octopus Cosy accredited installer, Greener Energy Group is proud to partner with Octopus Energy and be recognised as Cosy Accredited Installer of the Year. Together, we’re driven by a shared mission to tackle climate change, reduce fuel poverty, and deliver exceptional customer support.
Greener Energy Group were recommended…
They came along and said the house was suitable for heat pump and took deposit now…
Spoke to Melissa Muir the aftercare and service manager to report that my….
Proud to be named Cosy Installer of the Year 2026 with Octopus Energy.
