Heat Pump
Manufacturers
Design, Installation Maintenance and Repair
Based in South Wales, our team of heat pump installers, are experts dedicated to helping you design, purchase and install your heat pump system - reducing your carbon footprint and saving on energy running costs. We also provide heat pump servicing and repair.
​
Heat pumps work by absorbing heat from the environment, even when temperatures are low. They extract heat from the air or ground around us and transfer that heat to the inside of your home, keeping you warm and comfortable with heating and hot water.
​
Before any ground or air source heat pump installation we will conduct a FREE feasibility assessment, and then should you choose us, we will organise the installation with as little disruption to you as possible and arrange all works - including ground works where required.
Whilst we are Mitsubishi, Vaillant, CTC and Stiebel Eltron accredited installers, we install, service and repair all major brands.
Mitsubishi
Why We Fit Mitsubishi Electric Heat Pumps
At Limitless Energy, we choose to install Mitsubishi Electric Ecodan systems because they combine exceptional reliability, efficiency, and UK-based manufacturing — ensuring our customers get long-term performance and support.
Proven Quality & Performance
-
Mitsubishi Electric has over 30 years of heat pump expertise in the UK, and more than a century in global HVAC innovation.
-
Their Ecodan range delivers high efficiency, low running costs, and dependable performance even in cold weather — perfect for the UK climate.
-
Designed for both new builds and retrofits, these systems can provide high flow temperatures suitable for existing radiators.
Made in Britain – Backed by Mitsubishi
-
The Ecodan units are manufactured in Livingston, Scotland, using British engineering for British homes.
-
Local production means faster parts availability, reduced carbon footprint, and strong warranty support.
-
Mitsubishi continues to invest heavily in UK R&D and production, ensuring products are tailored to UK homes and standards.
Why Limitless Energy Recommends Them
-
We’re trained and accredited installers with extensive experience in Mitsubishi systems and so as a business solutions partner we can offer a 7 year warranty included with every installation free of charge.
-
We’ve chosen Mitsubishi because their systems align with our focus on quality, reliability, and sustainability.
-
Their long warranties and UK-based service network give our customers complete peace of mind.
Smart, Efficient, and Future-Ready
-
Ecodan systems integrate seamlessly with solar PV, smart tariffs, and battery storage, helping you maximise your renewable energy use and reduce bills.
-
Quiet, efficient, and proven — Mitsubishi Electric is one of the most trusted names in home heating.
Vaillant
Why We Fit Vaillant Heat Pumps
At Limitless Energy, we install Vaillant aroTHERM heat pumps because they offer German engineering, proven reliability, and exceptional efficiency, all backed by a strong UK presence and award-winning support.
Proven Quality & Performance
-
Vaillant has been a trusted name in heating since 1874, with over 150 years of innovation in home comfort solutions.
-
Their aroTHERM range is designed specifically for European climates, delivering excellent efficiency (A+++ ratings) and consistent performance — even in low temperatures.
-
Ideal for both retrofits and new builds, Vaillant heat pumps provide reliable heating and hot water with minimal running costs.
Built for the UK – Backed by Vaillant
-
Vaillant operates a major manufacturing and training centre in Belper, Derbyshire, employing over 1,000 people.
-
This UK base ensures fast support, easy access to parts, and systems engineered to meet UK regulations and home heating demands.
-
The company has a strong environmental focus, with its Belper site running on 100% renewable electricity and achieving carbon-neutral status.
Why Limitless Energy Recommends Them
-
As accredited Vaillant installers, we trust their technology for its quiet operation, reliability, and ease of integration with modern smart controls.
-
We can offer their 7 year warranty free of charge due to being approved installers, and their responsive UK service network gives our customers peace of mind and long-term value.
-
Vaillant’s high build quality aligns with our mission at Limitless Energy — to deliver premium renewable heating that lasts.
Smart, Efficient, and Future-Ready
-
Vaillant heat pumps integrate effortlessly with solar PV, battery systems, and smart home controls, helping you get the most from your renewable setup.
-
With quiet operation, advanced inverter technology, and a focus on sustainability, Vaillant represents the future of home heating — efficient, low-carbon, and built to last.
CTC
Why We Fit CTC Heat Pumps
At Limitless Energy, we install CTC heat-pumps because they bring exceptional Scandinavian engineering, broad product flexibility (air & ground source) and advanced controls, making them a great match for many UK homes and future-proofing requirements.
Proven Quality & Performance
-
CTC is a Swedish manufacturer established in 1923, giving it over 100 years of experience in heating technology. CTC-UK+1
-
Their heat-pump product lines deliver high efficiencies, for example a ground-source unit with COP over 5.0. CTC-UK+1
-
Their air-to-water units are capable of delivering hot water up to ~65 °C and operate in very cold ambient conditions (down to –22 °C) making them suitable for retrofit with radiators. CTC-UK+1
Intelligent & Flexible System Design
-
CTC’s “Energy Flex” concept allows integration of multiple heat sources, stores and zones (including connection with solar, batteries, and variable heating demands) — offering a future-ready platform. CTC-UK+1
-
Their product range covers both air-source and ground-source options — giving us flexibility when matching the right system to the property. CTC-UK+1
-
Their product design emphasises quiet operation, compact outdoor units (important in UK urban settings) and high-quality build. senergyheating.co.uk+1
Why Limitless Energy Recommends Them
-
We are trained and accredited across the full CTC range, giving us confidence in specifying, installing and servicing their systems to deliver optimal performance.
-
Because CTC offers both air and ground source solutions, we can tailor the system to the home’s specific constraints (garden size, insulation level, retrofit vs new build) — meaning the best fit for the homeowner.
-
Their technical support and installer training-infrastructure in the UK is strong — meaning better backup for our customers (which helps our after-sales promise). For example:
“Great technical support… I have been installing heat pumps for 10 years… Installed correctly CTC heat pumps give you great control and reliability over your heating system.” Trustpilot+1
Smart, Efficient, and Future-Ready
-
CTC systems are capable of integration with smart controls and flexible electricity / low-carbon tariffs, and their multi-zone/multi-source architecture strengthens future-proofing.
-
Their responsiveness to the UK market is growing — e.g., introduction of high-capacity models like the EcoAir 720M for larger properties. pv magazine International
-
With their high-efficiency performance and strong design heritage, CTC offers a premium-grade option that aligns with our mission at Limitless Energy: high quality, low-carbon heating that delivers value and longevity.
Stiebel Eltron
Why We Fit Stiebel Eltron Heat Pumps
At Limitless Energy, we install Stiebel Eltron heat pumps because they bring German engineering heritage, broad system flexibility (air-, ground- & water-source) and smart-integrated controls, making them a premium choice for future-ready homes.
Proven Quality & Performance
-
Stiebel Eltron is a German company founded in 1924, with over 45 years of heat-pump manufacturing experience. stiebel-eltron.co.uk+2stiebel-eltron.co.uk+2
-
Their UK subsidiary (based in Bromborough, Wirral) was established in 2008 and has consistently grown, reflecting strong UK market commitment. stiebel-eltron.co.uk+1
-
Their heat pumps are designed to deliver high performance even in cold external temperatures (down to -20 °C) and provide high flow temperatures, making them suitable for retrofit radiator systems. stiebel-eltron.co.uk+1
-
They support remote monitoring and alerting, helping ensure system reliability and servicing. stiebel-eltron.co.uk
Premium Engineering & Smart Integrations
-
Being part of a German-engineering culture, their product build quality and system flexibility are excellent — from air-source through ground/water source, to combined systems. stiebel-eltron.co.uk+1
-
They deliver compact system solutions (indoor cylinders matched with outdoor heat pumps) to suit UK homes where space is limited. stiebel-eltron.ie
-
Their products are increasingly designed for integration with solar, battery, and smart control systems — helping future-proof the home energy setup. stiebel-eltron.co.uk+1
Why Limitless Energy Recommends Them
-
We are trained and accredited with Stiebel Eltron systems, ensuring correct specification, installation and servicing — which is vital for performance and warranty compliance.
-
Their flexibility across source-types lets us match the ideal system to the specific property (whether an air-source retrofit or a ground-source new build) — meaning best fit and best value for the homeowner.
-
The strong support network, UK training-centre investment and long heritage give our customers confidence in long-term performance and backing.
-
Their warranty assurance is strong: Stiebel Eltron UK have extended standard warranty cover to five years (parts & labour) for domestic heat pumps registered and installed by trained partners. acrjournal.uk+1
Smart, Efficient, and Future-Ready
-
With high-efficiency performance, capability to work in cold ambient conditions, and smart integration potential, Stiebel Eltron systems align with our aim at Limitless Energy: to deliver sustainable, durable, low-carbon heating solutions for today and tomorrow.
-
Whether pairing with solar PV, battery storage, or creating zone-based heating systems, their flexible platform means the system you install now can evolve with you.
-
If you’re looking for a premium-grade system with proven engineering, strong UK support and long-term value, Stiebel Eltron is one of the best choices we offer.