Heat Engineer Software Ltd

Heat Engineer Software Ltd Built by engineers, for engineers. 🔥⚒️ Heat Engineer Software Ltd has created 'Heat Engineer' to aid surveyors and engineers in the heating industry.
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Helping heating engineers win more work, stay compliant, and run smarter businesses with all-in-one software for heat loss calculations, designs, quotes, surveys & job management. The historically tedious work required to gather details of a property and then complete a detailed heat loss calculation has caused frustration within the industry, and current software available hasn't really addressed

or improved this challenge. STANDARDS

The methods used in our calculations are from the Chartered Institution of Building Services Engineers (CIBSE) The Domestic Heating Design Guide 2014 and EN 12831. The UK standards for MCS MIS 3005 and MIS 3004 have also been met ensuring heat pumps and Biomass calculations can be presented. UNIQUE FEATURES

Users who suffer from Dyslexia can change the colour on the Heat Engineer website to help them read and navigate easier. We also created a comparison feature which displays the running costs from various fuels. This comparison should encourage companies and engineers who initial select their primary fuel source as a fossil fuel boiler to swap with a renewable heating solution instead. Therefore helping new plumbers and heating engineers into the renewable sector. Readers who may be unfamiliar with heat loss calculations

Before a heating system is installed whether it's a renewable or conventional fossil fuel boiler, its important that a plumber or heating engineer completes a detailed room by room heat loss calculation. The results from a heat loss calculation can then be used to determine each room's emitter size (Radiators, fan convectors, fan coil units and underfloor heating pipe centres) and the overall power output (kW) required for the heat pump, Biomass or conventional fossil Boiler. Other information can also be presented such as;

Estimation on running costs and heating and hot water energy consumptions
Comparison of different fuels against running cost
Heat pump seasonal performance factor (SPF)
Bivalent system
Current radiator outputs at different flow temperatures. Ground Loop Design

We recently launched the first edition of our new Heat Engineer Software newsletter - and asked readers to help us choos...
01/09/2026

We recently launched the first edition of our new Heat Engineer Software newsletter - and asked readers to help us choose the name. 🔥

A big thank you to everyone who voted and helped us decide.

Welcome to "The Warm Up"!

Each edition will bring you product updates, useful tips, industry news and exclusive content from the Heat Engineer Software team, straight to your inbox.

Want to get the next edition?

👉 Sign up here: https://mailchi.mp/heat-engineer/the-warm-up

27/08/2026

One heat loss calculation. Six ways to get there. 🔥

There’s no single way that works for every engineer — or every job.

That’s why Heat Engineer Software gives you six different ways to complete a room-by-room heat loss calculation.

In this video, our Founder & CTO Rich Cartwright takes you through all six, from LiDAR and mobile surveying to CAD, Vieweet and more.

Choose the method that works for you.

Great to see Heat Engineer Software featured in Heat Pump News! 🔥 No two properties are the same, and no two heating eng...
20/08/2026

Great to see Heat Engineer Software featured in Heat Pump News! 🔥

No two properties are the same, and no two heating engineers work exactly the same way.

That’s why we’re continuing to expand the ways you can survey with Heat Engineer Software — giving you more choice over how you capture a property and complete your heat loss calculations.

Choose the method that works for you, capture what you need, and get on with the design.

Great to see these latest developments getting some industry attention!

👉 Read the full article here: https://heatpumpnews.uk/heat-engineer-software-expands-surveying-choice/

Heat Engineer × Wolseley 🤝 We’re proud to work with one of the biggest names in the heating industry.Our Wolseley system...
18/08/2026

Heat Engineer × Wolseley 🤝

We’re proud to work with one of the biggest names in the heating industry.

Our Wolseley system integration lets you browse products with your own specific Wolseley customer pricing, find local branches for collection or delivery, and use Wolseley product codes in your project costs and kit lists.

Two parts of the job, working better together.

12/08/2026

21°C means 21°C. 🌡

When you’re designing a heating system, confidence in the numbers matters.

Adam Dare from Eco Renewables, South East Regional Winner at the Heating Installer Awards 2026, has tried plenty of different systems over the years - but keeps coming back to Heat Engineer Software.

For Adam, it’s simple: if he designs a room for 21°C, he wants to know it’ll deliver 21°C.

Because the last call any heating engineer wants is: “My room isn’t warm enough.”

07/08/2026

💡New Feature: Built-in Page Guides

Need help while using Heat Engineer Software?

Every step now includes a built-in guide with step-by-step explanations, so you can quickly understand fields and complete your work with confidence.

Watch this quick 30-second demo and let us know what you think! 👇

We've officially welcomed a brand new Growth Marketing Manager to the Heat Engineer Software team! 🎉 Meet Anna Hych - an...
06/08/2026

We've officially welcomed a brand new Growth Marketing Manager to the Heat Engineer Software team! 🎉

Meet Anna Hych - and she's already settling in fast.

At Heat Engineer Software, we're not just building the UK's leading Heat Loss & Design System – we're building the team behind it.

✅ 5+ years helping SaaS companies grow
✅ A genuine passion for great products reaching more people
✅ Already obsessed with our new 3D LiDAR System (same as the rest of us!)

Have a question for Anna? Drop it in the comments below! 👇

Welcome to the team. 🔥

We don't say it enough, but thank you 🙏 This week engineers have been telling us what the full 3D LiDAR system - include...
04/08/2026

We don't say it enough, but thank you 🙏

This week engineers have been telling us what the full 3D LiDAR system - included at no extra cost - is actually doing for them on site: faster surveys, more accurate designs, and one less tool to pay for separately.

No hidden extras, just LiDAR built into the job!

More coming soon. This is just the start. 😎

30/07/2026

Big news! Our brand new 3D LiDAR System has officially launched – and it’s INCLUDED as part of your Heat Engineer Software subscription at no extra cost!

At Heat Engineer Software, one fixed monthly price gives you everything you need.

✅ Unlimited Heat Loss Surveys & Designs
✅ Full 3D LiDAR System included at NO EXTRA COST!
✅ Unlimited Professional Proposals

No surprise charges. No expensive add-ons. One simple price.

Just £40 per month, per user.

Take control of your Heat Loss Surveys, Designs and Proposals with the UK’s trusted Heat Loss & Design System, helping heating engineers design smarter for over 10 years.

Watch our system in action:

https://youtu.be/LT1qYK4P5i4?si=3FBKnWdJG_MKOAEU

The Forge – where great projects are crafted. 🔥⚒️

Address

46 Market Square
Witney
OX283QX

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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