# Boiler

File: `data/hbm/hbm/machine_config/boiler.json`. Settings load when the world opens. See [Datapack Settings](https://movblock.mov/ntm-next/26.3/wiki/settings.md) for replacement behavior.

## Fields

| Field | Meaning and default | Range |
| - | - | - |
| `can_explode` | Enables boiler explosions on failure; default `true`. | |
| `diffusion` | Heat-transfer coefficient between this machine and its heat source; default `0.1`. | `[0, f64::MAX]` |
| `heat_capacity` | Maximum stored heat; default `3200000`. | `[0, i32::MAX]` |

## Example

```json
{
  "can_explode": true,
  "diffusion": 0.1,
  "heat_capacity": 3200000
}
```