Examples
Examples
Try the starting example
- Measured burn mass per hour (kg/h)
- 2.5
- Planned session durations (hours)
- 2,3
- Selected reserve (%)
- 20
- Usable wood stock (kg)
- 10
- Measured-rate session requirement (kg)
- 12.5
- Wood target including reserve (kg)
- 15
- Additional stock to obtain (kg)
- 5
- Stock above target (kg)
- 0
- Hours covered by stock at entered rate
- 4
Try another scenario
- Measured burn mass per hour (kg/h)
- 2.5
- Planned session durations (hours)
- 2,3
- Selected reserve (%)
- 20
- Usable wood stock (kg)
- 20
- Measured-rate session requirement (kg)
- 12.5
- Wood target including reserve (kg)
- 15
- Additional stock to obtain (kg)
- 0
- Stock above target (kg)
- 5
- Hours covered by stock at entered rate
- 8
Calculation method
Calculation method
Measured-rate session requirement (kg)
Measured kg/h × sum planned session hours.
Wood target including reserve (kg)
Base use × (1 + selected reserve/100).
Additional stock to obtain (kg)
max(0,target−usable stock).
Stock above target (kg)
max(0,usable stock−target).
Hours covered by stock at entered rate
Usable stock / measured burn rate, excluding reserve policy.
Symbols and units
- a
- Measured burn mass per hour (kg/h)
- b
- Planned session durations (hours)
- c
- Selected reserve (%)
- d
- Usable wood stock (kg)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A supplied-use inventory estimate. It does not grant fire permission, select a safe burn rate, assess fire weather or advise how to operate a fire.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.