Free
In-App Purchases

Details

  • Released
  • Updated
  • June 4, 2014
  • September 28, 2026

Features

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About

This app assists heating engineers and surveyors in collecting property data for heating system installations. It supports heat loss reports for various technologies and includes tools for sound assessments and quick estimations. Data is automatically saved for later review and amendment.

✓Heat loss survey for BS EN 12831, CIBSE, and MCS standards
✓MCS 020 sound assessment for Air Source Heat Pumps
✓Quick heat loss estimator tool
✓Automatic data saving and history for amendments
✓Room-by-room heat loss calculation
✓Photo capture for rooms and installation locations
✓Fuel comparisons and running cost calculations
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What's New in Heat Engineer

3.0.0

September 28, 2026

This major update brings a redesigned Heat Engineer app with light and dark modes, and connected mobile and desktop projects. Create customer proposals with equipment and labour costs, prepare DNO applications, estimate heat pump performance, and access instant EPC-based estimates, whole-house heat loss and room-by-room surveys. Capture measurements manually or use LiDAR on compatible devices, import surveys through your MagicPlan or Vieweet dashboard integrations, and explore scanned properties in 3D and augmented reality. Built-in survey checks, air source heat pump sound assessments and project synchronisation help you take your work from site to office.

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Subscriptions & In-App Purchases

$2.99

MCS 020 PDF Report Token

Token to enable the generation of an MCS 020 compliant Air Source Heat Pump (ASHP) Sound Assessment report.

User reviews

Poor service

Keep taking payments after cancellation and not refunding or comeback to me, not happy

Well-developed and supported

This is great software that I have used to create an additional wealth stream for my business. The final product is professional. Important to do the training though to get a decent report.

Must have app for heating

Great app with updates coming through all the time, constantly improving and integrations to improve functionality highly reccomend

Must have Heatloss software

This is a must have heat loss program for the professional heating installer, no other program comes close to delivering as comprehensive data and levels of customisation for different heating types from heatpumps to gas boilers, Rob and his team are constantly adding new features to make it more useful and adapt to the ever changing world of heating design 👌
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Can’t sort login, even called sent to YouTube?

Hear good reports but can’t get login or how to subscribe?

Given up!

FAQ

What are the main functions of Heat Engineer?

Heat Engineer offers three primary functions: a Heat Loss survey tool that meets BS EN 12831, CIBSE, and MCS standards; an MCS 020 Planning Standards tool for sound assessment of Air Source Heat Pumps; and a quick heat loss estimator.

Can I use Heat Engineer offline?

The app allows you to record data on-site and save your progress automatically. You can then revisit your history to update projects once you are back in the office, suggesting offline data entry capabilities.

How does Heat Engineer handle different building materials?

The app features pre-populated drop-down lists for building materials, including walls, floors, windows, doors, ceilings, and roofs, with options to add custom descriptions and U-values for detailed calculations.

Does Heat Engineer support different types of heating systems?

Yes, the app supports heat loss reports for renewable technologies such as Air Source Heat Pumps, Ground Source Heat Pumps, Biomass, and conventional fossil fuels.

How does Heat Engineer calculate energy demand and running costs?

Energy kWh demand and running costs are calculated using degree day data. The app also provides fuel comparisons to help users understand operational expenses.

Is Heat Engineer compatible with my devices?

Heat Engineer is available for iPhone, iPad, and iPod, indicating broad compatibility within the Apple ecosystem.

How often is Heat Engineer updated?

The app was last updated on October 26, 2025, with version 2.4.0, suggesting regular updates to maintain functionality and compliance with standards.

Does Heat Engineer have ads?

Based on the provided data, the app does not have advertisements, allowing for an uninterrupted user experience.