How Do I Power 12v Computer Fans?
Quiet, low power and surprizingly efficient, computer fans are an ideal cooling option for smaller cabinet grows. The only problem is that most computer...
Lighting Coverage Primer (Jackerspackle’s)
A very general rule of thumb is that your garden needs 50 watts of HID lighting per square foot of illuminated area. This rule...
How Much Ventilation Do I Need in My Grow Room?
Each fan has a rating that tells you how many cubic feet of air per minute (CFM) it will move. When dealing with...
What Reflective Materials can I use for my Grow Room?
Choosing the right surface for the walls of your grow room is very important, as up to 40% of your total yield comes...
How Much Co2 Should I Add?
Co2 Calculations:
1. Measure and multiply: length x width x height of your grow room to calculate the volume of cubic feet
2. Generally, the c02...
How Can I Vent Through The Sewer?
A common alternative to venting up the chimney is venting into the sewer pipe. Depending on how your house is built, if you push...
How Do I Install a Duct Fan to Operate Most Efficiently?
Principles of effective ventilation
Many growers own fans powerful enough to move air of a city block in Manhattan, but has failed to install it...
Building your own Inline Fan
I used a Comair MX2A4 115cfm A/C fan for this project. I bought it at Grainger (was about $30).
· I took a few scraps...
Stickydank’s Basic CO2 Method
Items Required:
* 10lb. white sugar
* 5 gallon clean bucket W/lid
* 4 1/2 gallons of water
* A piece of toast browned and hard
* A table...
How Do I Design a Fan Powered Cooling System for my...
Introduction:
Every serious growing box needs cooling. Most of us use air cooling because it is cheap and very effective. The following steps are used...
How Do I Rig An Electric Float Switch Reservoir Controller?
OVERVIEW:
An electric float switch is an alternative to float valves and controller buckets (for which there already exists a GROWFAQ entry for External Reservoir...
How To Dampen Noise from PC Fans
If you are trying to make use of a PC case fan, but finding it gets quite loud, this is for you!
You will need...
DIY: How Can I Build a Compact Hood with an Intergrated...
The following are somewhat detailed instructions for constructing a shielded hood/reflector with an integrated light trap designed for a small cabinet... It...
Should I Choose a Round or Square Pot for my Plants?
Many growers across the world using the round type planters are wasting possible space in there grow rooms, if you want more freedom in...
Fan Controler for Under $30
A little bit of info on what can control shaded pole and other general types of AC motors:
Potentiometer NO
Dimmer NO
Rheostat NO
Solid-State Speed/Power Controler YES
Variable...
How Should I select my Grow Space?
First, you should not put others at risk without their knowledge. This goes for your wife, kids, parents, live-ins or roomates. When LEO busts...