CALCULATORS
For specifying hot water systems
We want to make specifying low carbon sustainable alternatives to gas hot water heating in commercial buildings easier. So we have developed two calculators that help you work out commercial system requirements based on your hot water needs.

Articles On hot water

Energy performance comparison for hot water heat pumps and solar hot water.
October 7, 2021
It’s difficult to compare COPs between heat pumps and solar hot water systems because it depends on when you are measuring them. A solar hot

Low carbon hot water systems to replace gas and coal in commercial businesses
April 13, 2021
We can all play a role in developing a more energy-efficient economy using lower carbon, cleaner technologies in our buildings. By focusing on decarbonising energy

Can I replace an instantaneous gas hot water system with a CO2 heat pump system?
February 9, 2021
Replacing your instantaneous gas hot water system with a C02 heat pump system is easy. Making the change has many benefits including ongoing energy savings