# Scan a room. Calculate its heating needs. — Heatuneed measures each room, calculates how much heat it loses and the heating power it needs, checks whether the radiators are powerful enough, and creates a [heat-loss PDF report](https://heatuneed.com/reports.md).

> Walk through each room once. Heatuneed captures the dimensions of the walls, windows, doors, floor, and ceiling, so you do not have to measure and enter every element by hand.

[View the web page](https://heatuneed.com/) · [App Store availability](https://heatuneed.com/app-store/) · [Requires a compatible device](https://heatuneed.com/requirements.md)

## What Heatuneed does

From one room scan, you get the measurements and calculations needed to plan the heating system and share a clear report.

### Measure the Room

- Scan each room with a compatible LiDAR-equipped iPhone or iPad
- Capture a dimensioned 3D model without measuring every element by hand
- Detect walls, windows, doors, floors, and ceilings automatically
- Identify radiators with object recognition
- Keep every room organized within its project


### Calculate Heat Loss

- Calculate design heat load in kW and energy demand in kWh
- Determine the design heat load used to size a heat pump or boiler
- Break down heat loss through walls, windows, doors, floors, and roofs
- Model external, ground, unheated-space, and adjacent-room boundaries
- Assign construction details, thermal properties, and U-values
- Update results as inputs and assumptions change


### Check and Share the Results

- Review heat loss and heating demand by room and per square meter
- Find the building elements responsible for the greatest losses
- Check radiator capacity and review sizing recommendations
- Export Simple or Complete PDF reports to share


## Clearer heating decisions for every project

For people who need structured room data before they specify equipment, manage upgrades, or renovate.

- **Heating Professionals:** Turn room geometry into design heat loads and emitter requirements.
- **Property Managers:** Compare spaces and prioritize heating or envelope improvements.
- **Homeowners:** Understand where heat is lost before planning a heating upgrade or renovation.

## Model real buildings, not generic rooms

- **Reusable Construction Templates:** Apply consistent assemblies and materials across rooms.
- **Real-world Boundary Conditions:** Account for outside air, ground, adjacent rooms, and unheated spaces.
- **Orientation and Solar Gains:** Use cardinal direction to include solar exposure in the analysis.
- **Room-by-room Project Workflow:** Keep scans, assumptions, results, and reports together for each project.

## Follow the Heatuneed workflow

Scan the room, review its geometry, analyze heat loss, and share the result.

- **3D Scan:** Capture the room geometry with LiDAR
- **Room Model:** Review detected surfaces, openings, and measurements
- **Thermal Results:** See heat load and element-level losses at a glance
- **PDF Reports:** Export clear project summaries for clients or contractors


## Scan the room instead of measuring every element

Walk through the room once with your LiDAR-equipped iPhone or iPad. Heatuneed uses RoomPlan to build a measured 3D model of its walls, windows, doors, floor, and ceiling, then uses those dimensions directly in the heat-loss calculation.

## Turn the survey into a decision-ready report

Review room loads, envelope losses, radiator checks, and project recommendations, then export a Simple or Complete PDF for the client, contractor, or project file.

[Explore sample reports](https://heatuneed.com/reports.md)

## One workflow from capture to recommendation

- Apple RoomPlan and LiDAR for 3D room capture
- Heat-loss calculations by room and building element
- Editable assemblies, U-values, and boundary conditions
- Radiator capacity checks and sizing recommendations
- Simple and Complete PDF reports for sharing


## Start your next heat-loss assessment on site

With Heatuneed, one room scan becomes a dimensioned room model, a heating calculation, and a report you can share—without rebuilding the survey in separate tools.

3D scanning requires a LiDAR-equipped iPhone or iPad. [See compatible devices](https://heatuneed.com/requirements.md).

- [About](https://heatuneed.com/about.md)
- [Reports](https://heatuneed.com/reports.md)
- [Blog](https://heatuneed.com/blog.md)
- [Contact](https://heatuneed.com/contact.md)