The ongoing saga of the cold room venting system
April 4th to November 7th(so far)

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HTML file is d:\website\carey\allan\projects2018\vent\scantest.shtml
This is an adapter built to change where the intake air comes from. Before it was right beside the outlet air and probably recirculated the heat back into the room. This drops the intake down and to the left side. It is put together with ABS glue and no fittings. The black thing is a critter screen.

(19:04:2018)

At the end of April the outdoor temp got high enough that my process controller didn't have anything to work with anymore. IE: no cold air to use. Over the summer these two new fans were planned, and built. The fans are 6v computer cooling fans (thank you BC Robotics) fit into 5 inch to 6 inch reducer couplings. First thing about it is the new fans are much quieter than the old ones. Second there was a 120v fan mounted in one of these being used to vent. That fan is from a PDP-11/40 computer that had died over 35 years ago (you know pack rat?) and was/is noisy. It did make a good test unit. BUT When it was removed to fit the new fan in the mount and only one fans was still in place the room temperature dropped 2oC.

(06:11:2018)
This is the page from my monitor of the Iot computer that runs the fans. The area with pink background comes directly from the Iot system, the rest of the display is from a Raspberry Pi 3+ stand alone, with a 7 inch touch screen and no keyboard or mouse. The weather report is picked up in real time from the weather station at the Comox airport. The touch buttons on the bottom of the screen control the Raspberry and its display modes.

(19:04:2018)
This is the Iot computer that monitors the temperature and turn the fans on and off as needed. It is an Onion Omega+

(19:04:2018)
This is the first of the new fans in place. This is the exhaust fan, sending air out side from the ceiling.

(12:11:2018)
And this is the second fan, drawing cold air in from outside. Note how close it gets to the gray Poly-B water supply pipe.

(12:11:2018)
Exhaust vent placement, as high as I can get it in the room

(13:11:2018)
This is the pipe for under the front deck, to move the cold air intake away from the hot exhaust air.

(13:11:2018)
The elbow to turn to make the connection with the existing pipe. Stretch taped over to keep the dirt out while it gets pushed in. The pipe was damaged (and cheap) from the irrigation supply store. I didn't know how much 5 inch ABS irrigation pipe cost!

(13:11:2018)
Pipe in place! Critter filter over the outside end. Just to be safe there is a second critter filter in place and on the exhaust outlet where the pipe hits the house wall .

(13:11:2018)
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