Safe wood burning with the Swiss lighting method

How to build up the Swiss method

1. Place two to three large, dry logs next to each other at the bottom of the firebox or hearth.

2. Stack a layer of medium-sized wood on top, crisscrossed over the bottom layer to ensure adequate airflow.

3. Add a layer of fine kindling on top in a cross pattern so air can flow freely between the pieces.

4. Place one or two firelighters on top of the stack and light them.

5. Open the air intake completely and let the fire burn quietly from top to bottom.

6. Only add more wood once the first batch has burnt down to glowing embers.

Checklist for clean and safe wood burning

• Only use dry, certified wood with a moisture content below roughly 20 percent

• Fully open the air intake when lighting for a fast, hot start

• Stack the wood loosely so flames and air can reach everywhere

• Avoid waste wood, painted or treated timber, and excessively large, dense stacks

• Gradually reduce airflow only when the fire is burning well, never shut it completely right away

• Have your chimney inspected and swept annually

Why this method reduces chimney deposits

The key advantage lies in the combustion temperature. When lighting from above, the fire reaches a high temperature more quickly, allowing tar-like substances in the flue gases to burn off rather than settle against the cold chimney wall. This leads to less sticky residue that hardens and turns flammable over time. A cold, smouldering fire does the exact opposite: it produces numerous unburnt particles that stick to the flue as soot and tar. Besides a cleaner chimney, you will notice the top-down method results in less smoke from the stack and cleaner stove glass, as fewer unburnt gases hit the glass. The environment benefits as well, because hotter combustion emits significantly less particulate matter than a smouldering wood fire. You can read more about how these deposits build up in our article on how creosote forms in a chimney. Fewer deposits directly mean less fuel for a chimney fire, which forms the core of safe burning with wood or pellets. If you notice heavy soot, a black interior, or strong odours, these are often signs of a dirty chimney.

Wood stoves versus pellet stoves

The Swiss method is particularly useful for wood stoves, fireplaces, and insert stoves, where you manually stack and light the fuel. For pellet stoves, it is not applicable, as the appliance automatically feeds pellets and combustion air while regulating the burn itself. A pellet stove ignites via a heating element and keeps the flame continuously regulated, meaning the distinction between top-down and bottom-up lighting simply does not apply. With a pellet stove, it pays off more to focus on pellet quality and an optimized combustion profile. Even with the best burning techniques, always stick to dry, certified wood, as damp logs burn cold, produce smoke, and negate any benefits. Fresh logs contain too much moisture, which must evaporate before the wood can burn properly, and that evaporation consumes heat while generating smoke. Furthermore, good firing technique is no substitute for maintenance: have your chimney swept and inspected annually, and keep local regulations or insurer requirements in mind, as these vary by area. If you want to make sure you are burning the right quality wood, read how to identify dry wood before placing it in the stove. For a full overview on safe heating, check our guide on preventing chimney fires.