Room simulator

Find out before you buy it.

A first-order physical model of a grow room — two thermal masses, a vapour balance and a CO2 balance — driven by the same control logic that runs on the board. Three weeks of a crop computes in about a second, which is the point: nobody can tune a controller on live mushrooms, because the answer arrives four flushes late.

Species

Room volume m³

Substrate kg wet

Exhaust fan m³/h

Fogger output litres/hour

Outside air °C

Outside humidity %

Simulate days, up to 21

Humidity control

What it will tell you

Whether your fogger can hold the band once ventilation is running — the commonest way a first room fails, and it is invisible until the crop is in.
Whether your compressor is short-cycling, and whether that means it is too small or too large. Those need opposite fixes and look identical on a relay.
How long the room takes to move between stages, so a venting schedule is planned around hours rather than assumed to be instant.
What the crop costs in litres of water and units of electricity.

A well-mixed room with no gradients, no stratification and no dead corner behind the shelving — which is where contamination actually starts. It models the room you would have with a circulation fan running. Treat the output as a sizing check, not a prediction.