As Featured in the Financial Times
Our work at Salmestone Grange — a 14th-century, Grade II*-listed former monastery in Kent — was recently featured in a Financial Times article on the rise of home microgrids.
The property now runs on a carefully designed heat pump and battery system, installed by Thermal Delight. Despite the building’s age and lack of insulation, the system provides reliable comfort year-round — without the need for gas.
Thanks to smart use of variable electricity tariffs and 40kWh of battery storage, the setup is now saving Henry £3,360 per year in energy costs, with a projected payback in around six years.
It’s a good example of how older buildings can be upgraded for low-carbon living — with the right design, the right kit, and the right support.
WHAT OUR CLIENTS SAY
"Last year by this point we had spent £240 on gas - this year the Heat Pump appears to have cost £65, more than three times cheaper...long may this continue - Thank You"
Keith, Broadstairs House
WHAT CLIENTS SAY
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WHAT CLIENTS SAY
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Salmestone Grange - Panasonic Heating and Cooling
Salmestone Grange House - Samsung Heat Pump
Broadstairs House - Vaillant Heat Pump and Heat Geek Mini Store
Ramsgate Victorian House - Panasonic Heating and Coolingg
Meet the team
Thermal Delight Ltd. is a team of Henry and Konrad. Henry is a chartered architect with a research degree in Environmental Design in Architecture and has almost 20 years of experience of delivering sustainable design. Henry is responsible for the heat-loss surveys, fabric energy efficiency advice and system design. Henry is also Heat Geek Certified having completed Heat Geek Mastery Course. He is an avid fan of the CIBSE Domestic Heating Guide. Konrad is a heating engineer with over 20 years of experience installing heating and plumbing. Konrad is committed to continuous professional development. He is a Viessmann and Vaillant trained installer, able to offer advanced warranties for our installations. Konrad has an excellent understanding of low-temperature design having completed Kimbo Betty's hydronics for domestic installation course.
Recent projects
Our standard options:
This high-end air-to‑water heat pump comes as an all‑in‑one kit, including outdoor unit, indoor module and volumiser tank. It delivers heating, cooling and domestic hot water using eco-friendly R32 refrigerant and achieves top-tier efficiency (COP up to around 5).
Designed for minimal maintenance and flexible integration, it works well with underfloor heating, fan‑coil units or radiators and includes Viessmann's reliable Touch controls or optional ViGuide app support. This premium option is ideal for clients who want proven reliability, elegant design and long
The Vaillant Arotherm Plus is an excellent choice for homes seeking a high-performance, energy-efficient heating solution. Thanks to its advanced controls, the Arotherm Plus ensures a steady, reliable heat supply, even during colder months. By integrating the Havenwise heat pump optimiser, it further enhances efficiency, adjusting performance to your home's specific needs, ensuring maximum savings on your energy bills. This model is perfect for homeowners looking for a dependable and sustainable heating system that can make best use of off-peak and agile electricity tariffs.
The Samsung EHS Mono R290 is a cost-effective, compact air-to-water heat pump designed for efficient, low-temperature heating.
While the unit itself offers excellent performance for its price, the real benefits come with smart optimisation. We pair the Samsung system with either a Havenwise or Homely heat pump optimiser, depending on the needs of the home. These tools allow the system to respond intelligently to changing electricity prices, weather conditions and heating demand — helping to reduce running costs while maintaining steady comfort.
Despite its lower upfront cost, this heat pump performs well in cold conditions, operates quietly (thanks to Samsung’s low-noise design), and integrates neatly with most heating systems. It’s an ideal option for budget-conscious households who still want the advantages of smart control and modern efficiency.
The Panasonic PACi system offers a versatile and compact solution for domestic heating and cooling, adapted from Panasonic’s trusted commercial range. It delivers efficient year-round comfort using a discreet indoor unit and outdoor condenser.
The system heating in winter and active cooling in summer — making it a great choice for homeowners who want both functions in one reliable package. It uses R32 refrigerant and inverter technology to maintain stable temperatures while keeping energy use down.
A key feature of the PACi system is Panasonic’s nanoe™ X air purification technology. This advanced filtration system releases hydroxyl radicals (naturally occurring in the atmosphere) that inhibit pollutants such as bacteria, viruses, mould and allergens — helping to maintain a cleaner, healthier indoor environment.
Compact, quiet, and smart control–ready, the PACi is an excellent option for homes where space-saving design and air quality matter just as much as comfort.
3 reasons to get a heatpump
1. Comfort, All Year Round
A well-designed heat pump system keeps your home at a steady, comfortable temperature, no hot radiators that go cold half an hour later. Just consistent warmth in winter, gentle cooling in summer, and hot water that can supply multiple outlets at once. It is the perfect heating system for anyone who works from home. Done properly, it’s the most comfortable heating system you’ll ever have.
2. Lower Running Costs
Heat pumps are incredibly efficient. Instead of burning fuel, they move heat which means for every unit of electricity they use, they can deliver three or four units of heat. With the right setup (low flow temperatures, good control strategy, the right tariff and a home battery), a heat pump can cost much less to run than a gas boiler. Unless you cut wood from your own forest, you won't get cheaper heat than heat produced by an efficient heat pump powered by off-peak electricity. Our heat pumps regularly produce heat that costs less than 1p/kWh. That's about 1/6th of the cost of the best performing gas boiler on the cheapest gas tariff in 2025
3. Future-Proof and Low Carbon
As the grid gets greener, so do heat pumps. They run on electricity, not fossil fuels, so switching now puts your home on the right side of future energy policy — and avoids the uncertainty around gas prices, boiler bans and retrofit upgrades later. And if you care about carbon, it’s one of the biggest single improvements you can make.
Our philosophy
At Thermal Delight, we start with a simple question: how do you want your home to feel?
For us, thermal comfort isn’t just about hitting a target temperature, it’s about creating a living environment that feels just right, every day of the year. That means warmth without stuffiness, cooling without draughts, and hot water that never runs out. It’s a kind of invisible luxury that only happens when design and engineering come together.
We believe the best heating systems are quiet, efficient, and almost forgettable, because they just work. But behind that simplicity is careful thinking. We design every system around your home’s unique needs, balancing performance, cost, sustainability, and usability. No hard sell, no gimmicks — just thoughtful, honest advice backed by real-world experience.
We’re passionate about getting the fundamentals right: good heat loss calculations, correct pipe sizes, low flow temperatures, and smart controls that actually make sense. Because when you build from solid principles, comfort and efficiency go hand in hand.
That’s our approach. Practical, intelligent, and always centred around people. Because ultimately, our job isn’t just to install a heat pump, it’s to make your home a place of genuine thermal delight.