i-HOT High Efficiency Solar Assisted Heat Pump
All in One Solar Assisted Heat Pump for Hot Water production
Eco-friendly hot water solution
Thermal Store Cylinders for domestic and commercial hot water, with the latest generation of thermodynamic solar panels renewable technology.
- Low cost luxury — enjoy long, indulgent showers and deep baths with ultra low running costs
- Hot water on your schedule — reliable 24/7 performance, whatever the weather
- Zero hassle living — maintenance free, silent, discreet and built to last
- Trusted quality — MCS Certified, UK supported, and backed by 40 years of proven technology
- Smart home ready — Wi Fi control lets you manage comfort from anywhere
- Up to 70% energy savings — a meaningful reduction in your monthly bills • All year comfort — consistent hot water through every season
- A++ efficiency — exceptional performance with COP up to 1:5 in sunlight
- Dual source energy — draws power from both the sun and ambient air for maximum output
- Designed for British weather — strong performance even on cloudy, grey days
- Effortless control — intuitive smart interface with multiple comfort modes; PV compatible
- Sustainable by design — a renewable, solar assisted, air to water system that respects the planet
i-Hot system have very low running costs as they primarily use renewable energy, combine the principles of heat pumps with solar thermal collection. The dedicated thermodynamic panel systems are designed to heat hot water and constantly keep the water hot 24 hours a day at 55°C. The panels will work at night, as they work on a similar principle to a fridge, and can be positioned facing any direction. Inside the property you would find a unit that contains the working parts of the system compressor, pump, hardware, electronics and a modern insulated stainless steel Inox 444 cylinder with a coil. Thermodynamic panels systems are effective because they combine the principles of heat pumps with solar thermal collection, allowing them to extract heat from the ambient air and the sun, even at night or in cold, cloudy weather.

i-HOT Next Gen All in One Solar Assisted Heat Pump,
Engineered for Powerful, Affordable Domestic & Commercial Hot Water Production
The i‑HOT Solar Assisted Heat Pump brings together the power of solar energy and advanced built-in heat pump technology in one intelligent, high‑efficiency system.
When Winter Steals the Light, Innovation Gives It Back. Traditional solar panels struggle in these conditions, but the i‑HOT Thermodynamic Solar System is engineered to perform where others fail. By capturing energy from both the ambient air and available light, the i‑HOT delivers a continuous supply of hot water in every season, in every weather, even on rainy days and throughout the night . A solar assisted heat pump heats water by absorbing heat from direct sunlight and from the air. The hot water is then stored in a hot water cylinder, ready for when you need it. Solar assisted heat pumps can also work without direct sunlight. The result is a refined, high‑efficiency hot water solution that operates 24/7/365, offering exceptional reliability, remarkable energy savings, and the quiet assurance of premium engineering for homes and commercial spaces alike.
Transform the way your home feels every day with the effortless comfort of i-HOT.
Our ECOTOP, SOLAR BOX, AQUAPURA, ECO XL, THERMOBOX DUO and AQUAPURA INVERTERS ranges bring together cutting‑edge engineering and natural energy to create a hot water experience that’s cleaner, quieter and beautifully efficient. Powered by the sun and the air around your home, i‑HOT systems turn free, renewable energy into luxurious hot water, all while reducing your household consumption by up to 70%. Pair them with your existing PV panels for an even more sustainable, future‑ready home.
Our i-Hot SAHP (Solar Assisted Heat Pump) hot water solution is an advanced, ultra‑efficient system that combines thermodynamic solar technology with a high‑performance heat pump to deliver reliable, low‑cost, low‑carbon hot water all year round. The core idea is simple: instead of relying on sunlight alone, SAHP panels extract heat from sun, rain, wind, and even night air, feeding that energy into a heat pump that produces hot water at very high efficiency.
Our new MCS‑certified Solar Assisted Heat Pump hot water cylinder is engineered to deliver fast, reliable, and sustainable hot water for homes, offices, and commercial buildings. This next‑generation thermodynamic Solar Assisted Heat Pump provides an exceptional solution for domestic and commercial hot water production, offering outstanding performance across all residential and light‑commercial applications. Available in capacities from 200 to 5,000 liters, Heat Pump KEYMARK, natural refrigerant GAS R290 certified, the i‑HOT range offers complete flexibility with configurations that include one or two thermodynamic solar panels, and storage tanks manufactured in Stainless Steel 444 or Duplex 2205, with additional heating coils. The result is a robust, future‑ready hot water system that maximises renewable energy, reduces running costs, and delivers dependable hot water all year round.
i-Hot MCS‑certified Solar Assisted Heat Pump Range
ECOTOP The ideal solution for apartments or limited spaces, compatible with installation in 60×60 cm cabinets, thanks to the integration of the thermodynamic block on top of the unit, a space-saving solution that simplifies installation. The ECOTOP is available in capacities from 200 to 300 litres. It comes in a version with 1 thermodynamic solar panel and hot water storage tanks in Stainless steel 444 or Duplex 2205, with or without an additional coil.
Next‑generation thermodynamic solar heat pump designed specifically for domestic hot water production. An ideal solution for homeowners who want to retain their existing cylinder or storage tank while upgrading to a highly efficient hot water system. The SOLAR BOX is available with either one or two thermodynamic solar panels and includes an indoor unit (solar block) paired with an outdoor thermodynamic solar panel. Delivers hot water up to 55°C, 24 hours a day, with maximum efficiency. Integrates intelligent controls and future proof renewable compatibility to enhance dwellings efficiency.


AQUAPURA Aerothermal heat pump is engineered specifically for domestic, small commercial hot water production. This latest‑generation unit uses the natural eco-friendly refrigerant R290, delivering high energy efficiency with a reduced environmental footprint. The AQUAPURA MONOBLOC PRO model fits seamlessly into any space, including standard 60 × 60 cm cabinets, and features integrated Wi‑Fi for simple, intuitive remote app control. Available in 120‑ and 160‑liter capacities.

Designed for air‑to‑water heating and central heating applications in both residential and industrial environments.
This latest‑generation system uses the natural R290 refrigerant, delivering high efficiency and water temperatures up to 75°C.
The Aquapura Inverter X30HT, X60HT, and X75HT models feature a domestic hot water (DHW) function, a fully hydraulic installation, and an ultra‑compact, innovative design. In central‑heating configurations, the heat pump includes an outdoor unit, while the DHW version combines an outdoor unit with an indoor water‑heating module.

Each hot water project has unique technical requirements, so our multidisciplinary team provides full design support to ensure seamless integration of our systems. Our MCS‑qualified technical specialists assist architects, designers, and installers at every stage, including meeting the criteria for the £7,500 ECO4 or Boiler Upgrade Scheme grants, which require a low‑carbon ASHP or GSHP installation. We review your project in detail, recommend the most suitable solutions, and qualified MCS installer.
Standards & Certification
We remains strongly committed to the certification and validation of all our product ranges: MCS, Heat Pump KEY-MARK, Natural Refrigerant R290 Certified, Electrical Safety Standards, marks of performance, reliability and regulatory compliance, and eligible for MCS‑compliant installations.
Meet our Hot Water expert team
Guided by professionalism and proven success, our SAHP team brings together seasoned MCS professionals with deep expertise in renewables, energy efficiency, smart heating technologies, and sustainable Hot Water solutions.

Collen Baker
Senior project manager
Managing Director, Cool-Tech Ltd, Collen designs and delivers integrated energy systems for commercial and industrial buildings, bringing engineering rigour to the challenge of decarbonising the built environment. His specialisms are Intelli Heat Smart Connected Electric Heating and infrared heating, evaporative cooling, ventilation, plus UVC and LED lighting which all serve a single goal: lower energy consumption and better building performance. As principal engineer at Cool-Tech Ltd, he combines high-efficiency electric heating with solar PV and battery storage to give clients measurable, real-world results. Working across commercial and industrial projects, Collen helps them cut running costs, reduce carbon emissions and meet the UK’s decarbonisation targets specifying every system for long-term performance rather than short-term compliance.