# iHeatLoss

> Utilities

Canonical page: [https://chrome-stats.com/d/id680564773](https://chrome-stats.com/d/id680564773)

## Overview

- **ID:** `id680564773`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Navtech Software
- **Category:** Utilities
- **Rating:** 1.00 / 5 (1 ratings)
- **Version:** 3.0
- **Last updated:** 2026-05-12
- **First published:** 2013-07-31
- **Size:** 8.93 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/iheatloss/id680564773)
- **Website:** [http://www.navsoft.co.uk](http://www.navsoft.co.uk/)
- **Privacy policy:** [https://www.navsoft.co.uk/privacy-policy/](https://www.navsoft.co.uk/privacy-policy/)

## Description

Heatloss helps plumbers, heating engineers, and installers estimate the heat output required for each room in a building.

Calculate fabric and ventilation heat loss using room dimensions, component areas, U-values, internal temperatures, external temperatures, and air-change rates. Each room’s result is shown in both Watts and BTU, helping you choose a radiator with an appropriate heat output.

The app keeps track of every room in the project and provides a running total for the whole building, giving a clear estimate of the overall heat output required from the heating system or boiler.

Features
• Calculate room-by-room heat loss
• Include fabric and ventilation losses
• Track multiple rooms in one building
• View totals in Watts and BTU
• Use room temperature and air-change reference data
• Estimate the total heating output required for the property

## Rankings

- #993,728 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id680564773)