Lame.
Only metric and rooms only go up to 30 cubic meters. I want my $5 back.
$5.99
About
This app assists plumbers and heating engineers in calculating the heat output needed for each room in a building. It accounts for fabric and ventilation heat loss, providing results in Watts and BTU to help select appropriate radiators. The app also tracks multiple rooms to estimate the total heating system requirement.
✓Room-by-room heat loss calculation
✓Fabric and ventilation loss inclusion
✓Multiple room tracking
✓Watts and BTU output display
✓Reference data for temperature and air change
✓Total heating output estimation
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What's New in iHeatLoss
3.0
May 12, 2026
Improved performance and updated user interface
User reviews
Developer apps
FAQ
What is iHeatLoss used for?
iHeatLoss is a utility app designed to help plumbers and heating engineers calculate the required heat output for individual rooms and entire buildings. It aids in selecting appropriate radiators and boilers by providing estimates in both Watts and BTU.
What information is needed to use iHeatLoss?
To use iHeatLoss, you will need room dimensions, component areas, U-values, internal and external temperatures, and air-change rates. The app uses this data to calculate fabric and ventilation heat loss.
Does iHeatLoss support multiple rooms?
Yes, iHeatLoss allows you to track multiple rooms within a single project. It provides a running total for the entire building, giving a comprehensive estimate of the overall heat output required.
What units does iHeatLoss display results in?
iHeatLoss displays the calculated heat loss for each room in both Watts and BTU. This dual unit display helps users easily match the required heat output to available radiator and boiler specifications.
How often is iHeatLoss updated?
The latest version of iHeatLoss is 3.0, and it was last updated on May 12, 2026. This indicates a recent update, suggesting the app is actively maintained.
What devices is iHeatLoss compatible with?
iHeatLoss is compatible with iPhone, iPad, and iPod devices. It is suitable for users who need to perform heat loss calculations on the go.
What is the price of iHeatLoss?
iHeatLoss is a paid application, priced at $5.99. This one-time purchase grants access to its heat loss calculation features.
Does iHeatLoss have ads?
No, iHeatLoss does not contain advertisements. As a paid application, it offers an ad-free experience for its users.
