What is the Thermocill Project?
Thermocill is an innovative, passive device designed to sit discreetly underneath a window board in homes. Crafted from 100% recycled nylon, it’s not just eco-friendly but also smart in function. The device cleverly redirects warm air from radiators beneath windows, channeling it up against the window panes. This creates a warm curtain of air right in front of the glazing, helping to keep the chill at bay. At first glance, it looks like a standard window board, but inside, there’s a clever channel that guides the heat where it’s needed most. It’s a simple yet effective way to boost indoor warmth without cranking up the heating.
Main Benefits of Thermocill
Here’s why Thermocill stands out:
- Keeps your house warm while saving money on energy bills.
- Improves indoor air quality by reducing cold drafts near windows.
- Designed, optimised, and tested by world-class scientists.
- Made entirely from recycled nylon, helping reduce landfill waste.
- Creates a warm air barrier directly in front of double-glazed windows.
- Works perfectly alongside heat pumps for enhanced energy efficiency.
How Thermocill Works
Thermocill’s magic lies in its simple yet clever design. By replacing the standard window board with this device, warm air from the radiator below is redirected upwards, right against the window pane. This warm air curtain reduces heat loss through the glass, which is often a major source of cold spots in a room. The result? A cosier home environment without needing to blast the central heating. Plus, because it’s passive, it doesn’t require any extra energy to operate—just smart design doing its job quietly in the background.
Ongoing Research and Development
The team behind Thermocill isn’t stopping here. Research and development efforts are focused on expanding its capabilities for passive house applications. Plans include integrating a low wattage heater for extra warmth, adding a cooling option to prevent overheating from solar gains, and incorporating external ventilation to mix incoming cold air with warm air. This innovation could eliminate the need for traditional trickle vents, which many people tend to shut during winter, reducing fresh air flow. These upgrades aim to make Thermocill even more versatile and energy-efficient.
Environmental and Energy Impact
Thermocill is more than just a home comfort device; it’s a step towards sustainable living. By using recycled materials and improving heating efficiency, it helps reduce energy consumption and waste. Its compatibility with heat pumps—a clean energy heating solution—makes it a perfect partner in the journey to greener homes. The device’s ability to improve indoor air quality also contributes to healthier living spaces, making it a smart choice for eco-conscious homeowners.
Thermocill and the Sustainable Development Goals (SDGs)
- SDG 7: Affordable and Clean Energy – by saving energy and improving heating efficiency.
- SDG 11: Sustainable Cities and Communities – enhancing home comfort sustainably.
- SDG 12: Responsible Consumption and Production – using 100% recycled nylon.
- SDG 13: Climate Action – reducing carbon footprint through energy savings.
- SDG 3: Good Health and Well-being – improving indoor air quality.
Contact and Further Information
For those curious to learn more or get in touch, Thermocill Ltd is based in Altrincham, UK. The company can be reached via their website at www.thermocill.com, by email at contact@thermocill.com, or by phone at +44 (0) 161 7061004. Their office is located at Suite 13, Peel House, 30 The Downs, Altrincham, WA14 2PX. Whether it’s questions about the product or future developments, they’re ready to help.





















