- Delta-T reduces energy use in heating and cooling systems by up to 27%, significantly cutting CO₂ emissions.
- Bradford Council’s trial showed a 31-tonne annual reduction in carbon output and £33,600 in energy savings.
- It offers an easy, eco-friendly solution for homes, businesses, and councils to lower their carbon footprint.
Trials show huge efficiency boost and savings from new Delta-T heating and cooling system additive

A groundbreaking innovation called Delta-T reduces the environmental impact of heating and cooling systems in the UK. Developed by SafeSol and distributed by Blended Products, Delta-T is a liquid additive that increases the efficiency of water-based systems. That means your heat pump could get even more efficient.
The additive enhances heat transfer by reducing water’s surface tension, allowing systems to warm or cool spaces faster. This efficiency boost translates into a 27% reduction in energy use, which has major environmental benefits. Less energy consumption means fewer fossil fuels burned, directly cutting CO₂ emissions.
Alex Robinson, MD of Blended Products, said:

“Delta-T is a revolutionary product that substantially reduces energy consumption, heating and cooling costs and CO₂ emissions. Not only does it offer customers a quick return on their investment, but its mass adoption can significantly mitigate UK energy demands. It is a win-win product, with wide appeal, and results that speak for themselves.”
Bradford Council’s trial of Delta-T showcased its potential. They applied it to their 20,000-litre heating system in a Victorian office. The results were impressive: a 31-tonne reduction in annual carbon output and £33,600 in energy savings.
Vicki Morrison, MD of SafeSol Ltd, commented:
“SafeSol have spent 15 years researching and developing Delta-T alongside the University of the West of Scotland. In 2023 we patented our unique formulation which is shown in lab and field to reduce energy usage by 27%.
We are excited to be working with Blended to get Delta-T to a wider audience including domestic and commercial heating and cooling system users. We feel that Blended, with its experience in the specialty chemical industry, is an ideal partner to help take Delta-T to next level.”
This step forward in additives is perfectly timed as sustainable heating solutions rise worldwide. Delta-T has the power to add even greater efficiency and savings to your heat pump. Blended Products, a Heat Pump Week Founding Partner, ensures that these innovations are available to all. It’s an encouraging reminder that our homes are only going to become more sustainable, and more beneficial to their owners.