It started with a spreadsheet. Look where it’s going.
Heat Engineer Software began with one engineer trying to make heat pump design easier. More than a decade later, we’re building software around the whole plumbing and heating business.
One problem. One spreadsheet.
Rich was working as an independent heating-system design consultant and built an Excel model to make heat-pump design and MCS paperwork easier. Installers then started asking if they could buy it, which led to the idea for Heat Engineer Software.
Built with engineers, not in a boardroom
The first paying users came onboard and their feedback shaped the product. Development carried on through evenings and weekends while Rich was still lecturing.
Scaling the team, product and business
A permanent team came together, sales and support grew, and the roadmap went public. Greenarc invested in 2023, and the business moved towards a much stronger product and engineering organisation.
Rebuilding what heating design software could do
Version 2 rebuilt the experience from the ground up, making surveys and calculations faster and giving engineers more ways to complete a heat loss. Version 3 took things further with LiDAR surveying, AI assistance and a much wider range of products.
As the business continued to grow, the team evolved too. Ben Duckworth stepped across from sister company Greenarc to take on the role of CEO, bringing his experience in growing and managing businesses. This gave founder Rich Cartwright the opportunity to focus on what he does best, leading the technology and development of the software as Founder & CTO.
With Ben driving the business forward and Rich continuing to lead the innovation behind the software, Heat Engineer Software was well placed for its next chapter.
Then we decided to solve more than design
Heat loss and system design were where we started. But the businesses using Heat Engineer Software had much bigger challenges: winning work, managing customers, staying compliant, managing people, vehicles, finances and everything around the job.
So Heat Engineer Software grew with them.
We’re still building.
The next chapters are being written with the businesses using the platform every day.