--- title: "Octopus Cosy Heat Pump Installer Manchester | Greentech" description: "Greentech Renewables is an Octopus Cosy Accredited Installer covering Greater Manchester. MCS-certified fitting, up to £9,000 grant, Cosy Octopus tariff savings." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "LocalBusiness", "name": "Greentech Renewables", "image": "https://www.greentechrenewables.co.uk/logo.png", "description": "MCS Certified Solar Panel and Battery Storage Installers in Greater Manchester. Trusted by 2000+ UK homeowners for renewable energy solutions.", "address": { "@type": "PostalAddress", "addressLocality": "Greater Manchester", "addressCountry": "GB" }, "telephone": "0333 577 7010", "email": "admin@greentechrenewables.co.uk", "url": "https://www.greentechrenewables.co.uk", "priceRange": "££", "aggregateRating": { "@type": "AggregateRating", "ratingValue": "4.9", "reviewCount": "105" }, "sameAs": [ "https://www.facebook.com/greentechrenewables", "https://www.instagram.com/greentechrenewables" ], "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Renewable Energy Services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Solar Panel Installation" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Battery Storage Systems" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Air Source Heat Pumps" } } ] } }, { "@context": "https://schema.org", "@graph": [ { "@type": "Service", "name": "Octopus Cosy Heat Pump Installation", "provider": { "@type": "Organization", "name": "Greentech Renewables Ltd", "url": "https://www.greentechrenewables.co.uk" }, "description": "Octopus Cosy Accredited installation of the Cosy 6, 9 and 15.5kW air source heat pump range, including MCS-certified design, Boiler Upgrade Scheme grant support (up to £9,000 for oil/LPG replacement), and Cosy Octopus tariff set-up.", "areaServed": [ "Manchester", "Greater Manchester", "Lancashire", "Cheshire", "Yorkshire" ], "serviceType": "Octopus Cosy Accredited Heat Pump Installation", "url": "https://www.greentechrenewables.co.uk/octopus-cosy-heat-pump-installer-manchester" }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is an Octopus Cosy Accredited Installer?", "acceptedAnswer": { "@type": "Answer", "text": "An Octopus Cosy Accredited Installer is a heating engineer vetted and authorised by Octopus Energy to fit the Cosy heat pump range to Octopus's installation standard. Greentech Renewables has held this accreditation since 2026, has completed over 1,000 Octopus Cosy installations, and covers Greater Manchester and the North West." } }, { "@type": "Question", "name": "How does the Octopus Cosy heat pump work?", "acceptedAnswer": { "@type": "Answer", "text": "The Cosy 6 extracts heat from outside air, even down to -20°C, and amplifies it via a refrigerant cycle to heat your home and hot water. It pairs with the Cosy Octopus tariff, which prices electricity roughly 50% below the price cap across three off-peak windows a day." } }, { "@type": "Question", "name": "How much can I save on the Cosy Octopus tariff?", "acceptedAnswer": { "@type": "Answer", "text": "Octopus Energy states an average heat pump customer on Cosy Octopus saves around £315 a year on heating costs compared with a gas boiler customer on a standard variable tariff, including no longer paying gas standing charges. Actual savings depend on home size and usage." } }, { "@type": "Question", "name": "Do I still get the Boiler Upgrade Scheme grant with Octopus Cosy?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The standard Boiler Upgrade Scheme grant is £7,500 towards an air source heat pump, rising to £9,000 if you're replacing an oil or LPG heating system. It applies regardless of which energy tariff you switch to afterwards, so it combines with Cosy Octopus. Greentech Renewables handles the grant application as part of the installation." } }, { "@type": "Question", "name": "Will I need to replace my radiators for an Octopus Cosy heat pump?", "acceptedAnswer": { "@type": "Answer", "text": "Usually not. The Cosy range is designed to run at higher flow temperatures — up to 75°C — so it's compatible with most existing radiator systems. A small number of homes may need a radiator upgraded or resized after survey, but a full replacement is the exception rather than the rule." } }, { "@type": "Question", "name": "Who is the Octopus Cosy heat pump for?", "acceptedAnswer": { "@type": "Answer", "text": "It suits homeowners replacing a gas, oil, or LPG boiler who want lower running costs and a smart, app-controlled heating system — particularly useful for homes in Greater Manchester with a valid EPC and no outstanding loft or cavity wall insulation recommendations." } }, { "@type": "Question", "name": "How long does an Octopus Cosy heat pump installation take?", "acceptedAnswer": { "@type": "Answer", "text": "Most residential installations complete in 1–2 days, in line with Greentech Renewables' standard renewable energy installation timeline, following an initial home survey to confirm suitability." } }, { "@type": "Question", "name": "What makes the Octopus Cosy different from a standard heat pump?", "acceptedAnswer": { "@type": "Answer", "text": "The Cosy range uses the natural refrigerant R290, cutting heating-related carbon footprint by around 82% versus a gas boiler, and includes up to four wireless Cosy Pods — room sensors that monitor temperature and humidity for room-by-room control via the Octopus app. It's available in 6kW, 9kW and 15.5kW models to match different home sizes." } }, { "@type": "Question", "name": "How do I get started with Greentech Renewables as my Octopus Cosy installer?", "acceptedAnswer": { "@type": "Answer", "text": "Book a free home assessment, either by calling 0333 577 7010 or requesting a quote online. Greentech will confirm BUS grant eligibility, survey your property, and set out the Cosy Octopus tariff savings in writing before you commit." } } ] } ] } ] --- [0333 577 7010 ](tel:03335777010)[admin@greentechrenewables.co.uk ](mailto:admin@greentechrenewables.co.uk) ★ 4.9 on Trustpilot [![Greentech Renewables - MCS Certified Solar Installers](/assets/greentech-logo-DICMm454.jpg)](/) [Home](/) Our Services Solar Energy [ Residential Solar Home solar panel systems ](/solar-panels)[ Commercial Solar Business & industrial solutions ](/commercial-solar)[ Price Estimator Get an instant quote ](/solar-estimator) Energy Storage [ Battery Storage Store excess solar energy ](/battery-storage) Heat Pumps [ Air Source Heat Pumps Efficient home heating ](/heat-pumps)[ Octopus Cosy Installer Accredited Cosy fitting in Manchester ](/octopus-cosy-heat-pump-installer-manchester)[ Boiler Upgrade Scheme £7,500–£9,000 government grant ](/boiler-upgrade-scheme-bus) EV Charging [ Home EV Chargers Charge at home ](/ev-charging)[ Commercial Charging Workplace solutions ](/ev-charging#commercial) Ready to switch to renewable energy? Get a free, no-obligation quote today [Quick Solar Price](/solar-estimator) Grant Schemes Free Solar Grants [ Grants Overview All available UK grants ](/grants)[ Warm Homes Plan £15bn government initiative ](/grants/warm-homes-plan)[ Low Income Solar Grants Free panels for qualifying homes ](/grants/low-income-solar-grants) Heat Pump Funding [ Boiler Upgrade Scheme £7,500–£9,000 heat pump grant ](/boiler-upgrade-scheme-bus)[ Check Eligibility See if you qualify ](/grants/warm-homes-plan-eligibility) Export Payments [ Smart Export Guarantee Get paid for surplus energy ](/grants/smart-export-guarantee)[ Best SEG Rates 2026 Compare export tariffs ](/grants/seg-best-rates) How to Apply [ Application Guide Step-by-step process ](/grants/warm-homes-local-grant-apply)[ Consumer Loan Scheme 0% finance from 2027 ](/grants/consumer-loan-scheme) Check if you qualify for free solar Income under £36k or on benefits? You may get free panels [Check Eligibility](/grants/warm-homes-plan-eligibility) [Case Studies](/case-studies) [0% Finance](/finance)[Quick Solar Price](/solar-estimator) Octopus Trusted Partner · Greater Manchester # Octopus Cosy Accredited Installer — Greentech Renewables, Manchester Greentech Renewables has been an Octopus Cosy Accredited Installer since 2026, authorised by Octopus Energy to design and fit the full Cosy heat pump range (6, 9 and 15.5kW) for homes across Greater Manchester and the North West. The team has completed over 1,000 Octopus Cosy installations, alongside 2,000+ renewable energy installations overall since 2009, and handles the full process in-house — survey, Boiler Upgrade Scheme grant application (£7,500, rising to £9,000 for homes switching from oil or LPG), installation, and Octopus Cosy tariff set-up. [Book Free Cosy Survey](/free-quote) [0333 577 7010](tel:03335777010) > "Every Cosy install starts with an honest survey — we tell customers straight away if their home isn't a good fit, rather than sell a system that won't perform. That's why over 1,000 Greater Manchester homes have trusted us with their Cosy installation since we were accredited in 2026." > > — Gena Park, Greentech Renewables ## What Is an Octopus Cosy Accredited Installer? An Octopus Cosy Accredited Installer is a heating engineer vetted and authorised by Octopus Energy to design and fit the Cosy heat pump range to Octopus's own installation standard. It's a small national pool of installers — most concentrated in Scotland and the South — and Greentech Renewables is one of the few active accredited partners covering Greater Manchester and the North West. The accreditation sits on top of MCS certification and HIES Consumer Code membership, so you get Octopus's install standard plus every consumer protection that comes with the Boiler Upgrade Scheme. ## How Greentech Installs the Octopus Cosy Heat Pump (6 / 9 / 15.5kW) The Octopus Cosy range is available in three sizes — 6kW, 9kW and 15.5kW — sized to match a home's heat loss rather than its floor area alone. During the free home survey we run a room-by-room heat loss calculation, review your existing radiators, and confirm the correct Cosy unit for your property. Most installations complete in 1–2 days. - **Cosy 6kW** — flats and small 2–3 bed homes with modern insulation. - **Cosy 9kW** — typical 3–4 bed Manchester semi-detached and detached homes. - **Cosy 15.5kW** — larger 4–5 bed detached, older solid-wall properties or high hot-water demand. ## Octopus Cosy Tariff Savings vs a Gas Boiler The Cosy Octopus tariff prices electricity roughly 50% below the price cap across three off-peak windows a day — matched to when a well-set-up heat pump does most of its heating. Octopus states an average heat pump customer on Cosy Octopus saves around £315 a year on heating costs compared with a gas boiler on a standard variable tariff, before factoring in that you no longer pay a gas standing charge. ## The Boiler Upgrade Scheme Grant + Cosy Tariff, Combined (£7,500–£9,000) The £7,500 BUS grant reduces the upfront cost of fitting a Cosy heat pump; the Cosy Octopus tariff reduces the ongoing running cost. They stack. Homes replacing oil or LPG heating qualify for £9,000 from July 2026. Greentech handles the full BUS application on your behalf as part of the install — see our [Boiler Upgrade Scheme 2026 guide](/boiler-upgrade-scheme-bus) for the step-by-step. ## Is My Manchester Home Suitable for a Cosy Heat Pump? (Do I Need New Radiators?) The Cosy range is designed to run at flow temperatures up to 75°C, so it's compatible with most existing radiator systems — a genuine advantage over lower-temperature heat pumps that force radiator upgrades. A small number of homes may need one or two radiators resized after survey; a full radiator replacement is the exception. Your survey covers this before you commit. - Runs up to 75°C flow — most rads stay - R290 natural refrigerant — 82% less carbon - Wireless Cosy Pods — room-by-room control - Managed via the Octopus app ## Frequently Asked Questions ### What is an Octopus Cosy Accredited Installer? An Octopus Cosy Accredited Installer is a heating engineer vetted and authorised by Octopus Energy to fit the Cosy heat pump range to Octopus's installation standard. Greentech Renewables has held this accreditation since 2026, has completed over 1,000 Octopus Cosy installations, and covers Greater Manchester and the North West. ### How does the Octopus Cosy heat pump work? The Cosy 6 extracts heat from outside air, even down to -20°C, and amplifies it via a refrigerant cycle to heat your home and hot water. It pairs with the Cosy Octopus tariff, which prices electricity roughly 50% below the price cap across three off-peak windows a day. ### How much can I save on the Cosy Octopus tariff? Octopus Energy states an average heat pump customer on Cosy Octopus saves around £315 a year on heating costs compared with a gas boiler customer on a standard variable tariff, including no longer paying gas standing charges. Actual savings depend on home size and usage. ### Do I still get the Boiler Upgrade Scheme grant with Octopus Cosy? Yes. The standard Boiler Upgrade Scheme grant is £7,500 towards an air source heat pump, rising to £9,000 if you're replacing an oil or LPG heating system. It applies regardless of which energy tariff you switch to afterwards, so it combines with Cosy Octopus. Greentech Renewables handles the grant application as part of the installation. ### Will I need to replace my radiators for an Octopus Cosy heat pump? Usually not. The Cosy range is designed to run at higher flow temperatures — up to 75°C — so it's compatible with most existing radiator systems. A small number of homes may need a radiator upgraded or resized after survey, but a full replacement is the exception rather than the rule. ### Who is the Octopus Cosy heat pump for? It suits homeowners replacing a gas, oil, or LPG boiler who want lower running costs and a smart, app-controlled heating system — particularly useful for homes in Greater Manchester with a valid EPC and no outstanding loft or cavity wall insulation recommendations. ### How long does an Octopus Cosy heat pump installation take? Most residential installations complete in 1–2 days, in line with Greentech Renewables' standard renewable energy installation timeline, following an initial home survey to confirm suitability. ### What makes the Octopus Cosy different from a standard heat pump? The Cosy range uses the natural refrigerant R290, cutting heating-related carbon footprint by around 82% versus a gas boiler, and includes up to four wireless Cosy Pods — room sensors that monitor temperature and humidity for room-by-room control via the Octopus app. It's available in 6kW, 9kW and 15.5kW models to match different home sizes. ### How do I get started with Greentech Renewables as my Octopus Cosy installer? Book a free home assessment, either by calling 0333 577 7010 or requesting a quote online. Greentech will confirm BUS grant eligibility, survey your property, and set out the Cosy Octopus tariff savings in writing before you commit. ## Book a Free Octopus Cosy Home Survey We'll confirm BUS grant eligibility, size the correct Cosy unit for your property, and set out the Cosy Octopus tariff savings in writing before you commit. [Book Free Survey](/free-quote) [Call 0333 577 7010](tel:03335777010) ## Accreditations ![Our Accreditations: HIES Consumer Code, TSI Approved Code, TrustMark Government Endorsed Quality, Green Deal Approved, MCS Certified, NAPIT](/assets/solar-accreditations-CbjEg9cO.png) Public Liability Insurance – Tradesman Saver £5,000,000 – GREE55TR01 Employers Liability Insurance – Tradesman Saver £10,000,000 – GREE55TR01 Professional Indemnity – Tradesman Saver £250,000 – GREE55TR01 [![Greentech Renewables - MCS Certified Solar Installers](/assets/greentech-logo-DICMm454.jpg)](/) MCS Certified solar panel and battery storage installers serving Greater Manchester and the UK. Trusted by 2000+ homeowners. 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