Start Your Heat Loss Journey Today
Easily size any renewable or traditional fuels heating system to meet modern standards
Completed Surveys
Total kW
Floor Areas (m²) Heated
Our system helps you:
- Win more business
- Ensure top-quality installs
- Secure customer recommendations
Accurate Heat Loss Calculations
Choice of Four Methods for Heat Loss Surveys
MCS Compliance Assistance
Certification Course Access
Ideal for Low-Temperature Systems
Third-Party Integrations
System Features
Highlighted Features
Highlighted Features
Design and optimise bivalent heating systems for maximum efficiency
Bivalent systems combine the strengths of renewable and traditional heating sources, typically pairing a heat pump with a boiler or electric heater. This hybrid approach ensures maximum energy efficiency by using the heat pump as the primary source and only activating the secondary source during peak demand or colder temperatures. Our software takes the complexity out of designing these systems by helping you determine the ideal bivalent point, ensuring system balance, cost savings, and year-round comfort. It’s the smarter way to future-proof any heating setup.
Heat Engineer Software: A 60 second introduction
Let our Founder and Chief Technical Officer Rich Cartwright tell you how our software can help your heating business.
Our Community
A thriving community of organisation, of all sizes and specialisms, united by one shared goal, to help shape an industry we can all be proud of.











They Use It, They Love It
What sets us apart is our commitment to understanding each organisations goals and helping them succeed. Our customers and partners say it best- hear their stories firsthand.

"At Eco Renewables, we pride ourselves on delivering high-quality, energy-efficient heating solutions to our customers—and Heat Engineer Software has been a game-changer for us. Since integrating it into our business, we've significantly improved the accuracy and speed of our heat loss calculations and system designs. / The intuitive interface, powerful features, and seamless reporting tools have helped us save time on every project while boosting our team’s confidence in the systems we design. Our customers also appreciate the detailed reports, which help them understand the value of the solutions we provide."

"At Burnley College, we are committed to providing our students with industry-relevant, hands-on experience that prepares them for successful careers. Integrating Heat Engineer Software into our curriculum has significantly enhanced our teaching in heating system design and energy efficiency. This allows our learners to engage with real-world scenarios, perform accurate heat loss calculations, and design systems in line with current industry standards. Our partnership with Heat Engineer Software ensures our students complete any course with practical skills and confidence to excel in a competitive job market."
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