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Here is one of my incubators. The cabinets are a standard metal shop cabinet unit.
I keep a 40 watt appliance bulb in the bottom right corner attached to an inline thermostat. The inside of the right cabinet is lined with Tekfoil insulation and foam board. The bottom of the right cabinet is kept in the lower 80's, above it the temp slowly drops a couple degrees per shelf. This allows me to move my jars in a cycle away from the heat soarce as they colonize.
The left cabinet gets enough radiant heat from the right cabinet to stay in the lower 70's, great for inducing pins and finishing out bulk projects.

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[toad]

The digital thermometer is separate from the heating loop, the loop has it's own inline adjustable temp switch which is inacurate in such a small space.

I left it out of the loop so I can use it to test all shelves temps and to test temp in other projects, other incubators.

[Hippie3]

copied to the vaults
from
http://mycotopia.net...read.php?t=3896