Lights & heating
Place lighting and radiators, set every property, link them to walls, and use the full type catalogues.
Lights and radiators are first-class plan elements drawn to recognised symbol conventions (IEC 60617 for lighting, BS EN ISO 7518 for heating), not generic furniture footprints. Both can be tied to a wall so they move with it.
Lights
Place lights with the Light tool: tap empty space, pick a type, and it’s placed and selected. The type picker has a search field and category sections, the same standard as the fixtures and furniture picker. Wall-mounted types snap to the nearest wall within 2 m (otherwise they’re placed free, and you can move or retype them).
Light catalogue
| Type | Symbol | Wall-mounted |
|---|---|---|
| Pendant | Circle with diagonal cross | No |
| Downlight | Filled disc in an outline circle | No |
| Floor lamp | Circle with inner disc and three feet | No |
| Picture light | Wall-side body with three light rays | Yes |
| Wall source | D-shape flat to the wall with a central spot | Yes |
Light properties
Open a light’s edit sheet (Property) to set:
- Type, switching to a wall-mounted type re-snaps it to the nearest wall.
- Brightness, 50–300 lumens.
- Colour, four presets (Warm White, Soft White, Cool White, Daylight) or any custom hex.
- Mounting height, 0–3.0 m in 0.05 m steps. The label adapts to the type (“Drop below ceiling” for a pendant, “Height from floor” otherwise). Hidden for downlights (flush with the ceiling).
Lights have no rotation or scale, orientation comes from the wall for mounted types. Drag a free light anywhere (with optional grid snap); a wall-linked light slides along its wall, staying glued to the inner face. A Move to other side of wall button flips it to the far face (useful across a shared wall).
Heating (radiators)
Place radiators with the Radiator tool. Wall-linking is mandatory, every radiator snaps to the nearest wall with no distance limit, so a tap anywhere finds a wall (if the drawing has no walls yet, a brief notice asks you to add one first). Its type picker also has a search field and category sections, matching the fixtures and furniture picker.
Radiator catalogue
| Type | Default footprint | Default output |
|---|---|---|
| Standard | 1000 × 600 mm, 80 mm deep | 1500 W |
| Vertical | 500 × 1800 mm, 100 mm deep | 1500 W |
| Heated towel rail | 500 × 1200 mm, 60 mm deep | 600 W |
| Designer | 1200 × 600 mm, 100 mm deep | 2000 W |
| Panel heater | 800 × 400 mm, 50 mm deep | 750 W |
Radiator properties
The edit sheet (Property) exposes:
- Type, changing it resets size, output and mounting height to that type’s defaults.
- Output, 100–5000 W in 50 W steps (rated to BS EN 442).
- Length, 200–2500 mm (the drawn length along the wall).
- Height, 200–2500 mm (vertical height, for 3-D and documentation; not shown in plan).
- Mounting height, 0–3.0 m, measured from the floor to the radiator’s top edge.
Drag a radiator to slide it along its wall (it never leaves the wall), and use Move to other side of wall to serve the adjacent room. The rated output is documentation only. The app records each emitter’s nominal duty on the plan but does not compute heat-loss or BTU totals.
Staying flush when walls change
Wall edits carry their fixtures. Move or reshape a linked wall and every attached light and radiator follows it; change the wall’s thickness and they shift along the wall’s inward normal so the wall-side edge stays on the new inner face, on both sides of a shared wall. Deleting a wall releases its lights to free placement, but removes its radiators - a radiator can’t exist without a wall.
Connecting two scanned rooms along a shared wall can also reveal the same physical light or radiator captured by both scans. The app spots near-coincident pairs on the newly shared wall and offers to merge each duplicate down to a single fixture - and one undo rewinds the connection and the cleanup together.
Visibility
Lights and heating each have a layer toggle (on by default), so you can show a clean plan or a full services view. Lights also carry into the 3D engine: each light’s brightness and colour drive how its room lights up in the Day and Night modes’ interior lighting.