## Common ground
All options refer to fuel-burning stoves that use petrol, paraffin, spirit, or pressurized fuel.
## Options at a glance
**7321.1X – made of iron or steel**
- **Defining trait:** Constructed primarily from iron or steel, offering durability and heat retention.
- **Typical examples:** Heavy-duty camping stoves, industrial fuel burners.
- **Best fit when:** High durability and resistance to impact are needed.
**7418.10 – made of copper**
- **Defining trait:** Uses copper for excellent thermal conductivity and fast heating.
- **Typical examples:** High-performance cooking stoves, laboratory fuel burners.
- **Best fit when:** Fast heat transfer and even temperature distribution are essential.
**7615.10 – made of aluminium**
- **Defining trait:** Lightweight and corrosion-resistant, ideal for portable use.
- **Typical examples:** Backpacking stoves, lightweight travel cookers.
- **Best fit when:** Portability and low weight are priorities.
## Key differences
| Feature | Iron/Steel | Copper | Aluminium |
|------------------|------------------|-------------------|-------------------|
| Weight | Heavy | Medium | Light |
| Heat conductivity| Low | Very high | High |
| Durability | Very high | Moderate | Moderate |
| Common use | Rugged, fixed | Precision cooking | Portable, travel |
## How to choose
- Is the stove meant for rugged, long-term use? → 7321.1X
- Does it need rapid, even heating? → 7418.10
- Is portability and light weight critical? → 7615.10
## Overlaps & pitfalls
A stove may combine materials (e.g., aluminium body with copper burner), but the main material determines classification. If unclear, prioritize the dominant structural material. No option is inherently vague, but "iron or steel" includes many subtypes—ensure it’s not just a coating