Hmm...budget? Lately I have been more inclined to convenience and drive operating cost down at the expense of initial setup cost. Over the years I have used CO2 and still have the regulator, valves and at least one tank, but it is not cost effective in my current situation. I like to plan well in advance so I can mull over all the options.
Here is some random bullet points to consider;
- Current room is made from 8 ft 2x4s so the room is approximately 8x8x8 and built inside of 30x50 ft non-insulated metal garage/shop.
- The garage/shop has grey epoxy concrete floor with slight slope out garage doors. Evaporative cooler at the other end.
- Plan for 6 flowering plants per state requirements.
- Current heat and cooling seem adequate. 1500 watt oil filled radiant heater, 8000 BTU floor AC unit.
- Also do not use reverse osmosis membrane in filtering of water.
- DTW will be the method.
- Location is in the country so no carbon filter is needed. Though I can't park my car in the garage when the smell is too strong.
- Current stock of fans, lights, tanks, timers, etc. will be used.
- This will be a permanent structure secured to 2 walls and roof of the garage.
Thoughts;
Have had water leaks in the past, so goal will be to make this room as waterproof as possible. Thinking metal studs that go up to the 10-12 ft sloped roof. Room should provide enough room for 4x6 or 4x8 drain table, ~18 inches off the floor. Internal foot print should be 10x13, need to lay it out once old room is torn down.
One inch drain line to outside garage, quarter inch waterline inlet. Three separate 20 amp circuits for everything. Inlet and outlet fans will be to/from garage not ambient air. Room will be otherwise sealed with automatic sweep at bottom of door.
Struggling with the paneling, plastic sheeting will not withstand the UV and not sold on PVC panels. Maybe white 5-rib metal panels with spray-foam insulation.