[Palindrome]

I have to admit I enjoy building grow rooms, it's been so long I had almost forgot how nice this is.

Programmable timers for the light and main exhaust, will be installed in the circuit box.
This way I will avoid wall plug timers, making a better, much cleaner and accessable installation.



For the secondary exhaust, I will install a thermostat controller.
That will turn on, if the temp. spikes above the max setting.



Both exhaust fans will be controlled, by each their own fan controller.
This way I can adjust the fan speed, according to the season.
But without ever having to run any of the fans, at 100% and limit exhaust noise without use of a muffler.




On a side note, I changed the curcuit breaker from 3x16 amp to a 3x 13 amp breaker.
As it's more than enough, but the installation cable for 16 amp was twice the price of 13 amp cable.

[Kaskadian]

Welcome back m8! Glad to hear you're back up and growing. I'm subbing this and pulling up a chair to watch the show.

[Palindrome]

Originally Posted by Kaskadian

Welcome back m8! Glad to hear you're back up and growing. I'm subbing this and pulling up a chair to watch the show.

Thank you mate and welcome aboard, still got a bit of building a head of me.

[Palindrome]

Picked up the timer for the lights today, and gave it my best at intalling it myself. It should be fairly easy, even tho it's been a long time.




Power to 1
Neutral to 2
Power to the switch at 4
Power to the light from 5

Took me a while to get it working, as I accedently had crossed two wires. After a joint break, I figures that out. Swapped the two wires and now the light timer is working.



As I was trying to find my old ballasts, I was sure I had two of them. I found a exhaust muffler I forgot I had, but I never found the second ballast.
If I can't find it, I'll get one back from a friend.

[Palindrome]

Got started on building my exhaust system, I had almost everything laying around. Ducks, the main fan and the muffler I forgot about. All I needed to pick up, was a few 90 degree fittings and I was ready to build.

I can't remember the ratings on my fans, but I build them for rooms running 4x 600 watt. Given the filter I use is a 700-1100 m3/h unit, id say my fan moves something in that range.
(I used to work as a production manager, at a factory building exhaust and heat exchange systems)



Cut a 6" hole in the celing, with a jig saw and pulled some "hard" alu flex duckting thru the hole. This will connect the carbon scrubber, to the exhaust on the attic.



I was sugested to paint the room, when I showed the picture of the light timer test. It's been part of the plan all the time, the room will be painted flat white. in the long run, it's the best reflective surface. Foils get spotted very easy, so it might have a higher reflection the first two grows. But it's not as easy to wash down, and give a good clean between grows.

[Palindrome]

And on the 18th day, he painted it white!





Will give it another layer tomorrow

[Palindrome]

Got my back draft valve and exhaust grill today, to prevent cold wind and bugs getting into the grow room.

The valve is just two thin flaps, kept close with a few light springs.
Once the fan turns on, the flaps will open and air can pass with little restriction.
When the fan turns off, the flaps will close and prevent air flowing from the outside into the room.

The exhaust grill have a bug net, that will keep larger bugs away.
I don't think anything small enough to pass thru the bug net, would be able to while the fan is on.
Once the fan is off, the back flow valve will close.

This should in the end result in a clean and pest free room, unless I bring them in myself.

[Palindrome]

Yesterday I finished the wall paint, there will be more painting to doo once the door is made and put up.
The outside walls will also need some paint, I think I'll end up painting the whole garage at that point.

Took the last step, and just made a exhaust hole in the wall of the garage attic.
This way I don't need to worry about things like, snow melting off the garage but not the rest of the house.
A 6 " Cup drill for brick and concreate, was to expencive to buy for one hole and I wasn't able to rent it local.
So had to use my hammer drill, made a circle of holes. Then removed the center, with a chisel and hammer.

Put together my wall flange and back draft valve, here it's a good idea to cut the screws.
So they won't block the valve flaps, before you install it.
Then you don't have to take it all apart again like me!



Pushed it thru the hole from the outside, so the wall flange have a tight fit. Then I mounted the exhaust grill, to give it a nice finish.



From the inside, check and make sure the valve flaps can open.



Now it was just a matter of connecting the fan and silencer, with a few 90 degree bends and some straight ducting.



For now the ducting is resting on the insulation, I have mounting clamps for hanging the whole exhaust, for noize reduction but first I will wait and see if it's needed.

[FrozenFire]

Hammer drills are the shit for drilling holes in masonry. Good job on the exhaust install. You do some clean work amigo.

[Palindrome]

Originally Posted by FrozenFire

Good job on the exhaust install. You do some clean work amigo.

Thank you mate, better do it right the first time round. But it's funny, as in my everyday life im a bit of a slob. My desk is caos, never know where I put my tools. But my grow rooms, have always been nice and tidy.