Creating a heater port out of plastic pots:

The MycoBox will often be filed with a thick mist to raise the relative humidity, however I don't want that mist soaking into the heater. To take steps to avoid that I made an L shaped port for the heater, so that it's positioned out of the MycoBox. Mist gets everywhere when you start to blow it around, but hopefully the positioning of this port will reduce exposure; at least when the circulation fans are off. I created the L by cutting the bottom off of one pot and taping it onto another.

This is the board that the heater is mounted to with mounting tape, and the pot is nailed into place onto this board. 

here is a photo of the pots covered in Shurtape, which is aluminum foil ducting tape, which converts these simple pots into a functional ducting port now. I created this with pots because I already had these pots laying around and its pretty easy to create a sturdy port this way.

To get the nails in place I heated a nail and pre-poked the holes. Then I pre-nailed the nails where the would go so that it would be easy to tap them into place when securing the port.

I added Shurtape along the port connection to keep it sealed

The below images shows how the heater will be mounted to the port

Here I've nailed the port to the side of the MycoBox using the same heated nail technique.

You can see how this port sticks out and up to try to keep the heater away from as much ambient fog as possible. The Heater will be face down on this port, and it blows down and into the MycoBox.

Here the heater is mounted face down to the port, the button is in the on position so the heater can be relay controlled.

Here is the port from inside the MycoBox...not the prettiest tape job but it's well sealed on the inside. 

AC  Vent Fan

The Final step to keeping the heater unit isolated from the internal climate of the box was adding a vent and vent fan to the heater. The Heater has a built in fan for blowing its heat outwards, however it does not have enough force to push open a vent. So I added an inline vent fan in front of the heater that will push open the vent and allow the heated air to pass into the chamber, yet when the heater and inline fan are off air and humidity from inside the chamber don't escape. 

In the above photo you can see I'm using the same type of vent that is covering the intake fan. Below is a short video of the fan running when I first mounted it to the heater adapter. 

Here are some images of the adapter from a few angels.

I slightly reduced the fan speed of this 12V fan by applying a voltage regulator to the power cable, which lowers it to about 8V; just enough to push the vent open and let the hot air in.

Modifying the AC port to be more secure:

After switching out the AC port for the smaller plastic version that doesn't jut out as far into the MycoBox, the AC ducting has had a hard time connecting to the outside of the plastic port. So I added a cardboard inner connector between the plastic port and the old metal port, which easily connects to the AC ducting. 

I fashioned a cardboard ring that matched the 6" inner diameter of the port, and then attached it with 3 pieces of mounting tape so that the cardboard adapter wont just slip out; it will have to be intentionally removed, it will not accidentally slip out. 

The metal port has foldable tongs that conveniently slip tightly between the plastic port and the cardboard adapter. The AC ducting then fits easily onto the large surface area of the metal port

Finally I sealed the port with some Shurtape and a ducting clamp