The Purpose
- Fuel can build up in the ‘cavity’ of the fire feature
- If there is no way for the fuel to escape, it can ignite and cause severe damage
- HEAT – over longer periods of burning, residual heat can build up below the burner. If you’re using electronic ignition, that heat could cause it to malfunction.
Recommended Ventilation
- 18 square inches on opposing sides (for cross-breeze)
- Keep the vents lower towards the ground
- Consider the many ways this can be accomplished
- 2″ holes
- Vents from any home store
- Creating space between materials
- Lifting the fire feature a small amount (great option for concrete bowls)
Propane Vs Natural Gas
Natural gas
- Lighter than air, so the excess gas rises
- If your fire feature has an empty cavity under the burner, ventilation may still be recommended, but we can’t say for sure. When in doubt, seek the assistance of your local gas professional or contractor
Propane
- Heavier than air, so excess gas sinks down below the burner into the fire pit
- Absolutely imperative to make sure the fuel has somewhere to escape