Calculation for correct Dehumidifier?

Hi guys, is there a rule of thumb or a formula for calculating how big of a dehumidifier I need?

Thanks

It must be capable to remove more pints of water per day than you introduce into the environment per day.

In a near air tight room, every gallon poured into soil will evaporate into the air and/or be transpired out by the plants.

Everyone always undersizes everything, and then the cannabis forums used to always be filled with the same threads every summer (Help! PM! Bortytis, etc.)... Try to oversize a bit and you'll be better off.

Yep. Calculate what you think you need and then double it. The 95pt units are the most cost efficient btw. Like this one: https://www.sylvane.com/danby-ddr095bdpwdb-95-pint-dehumidifier.html

When my room (3000W LED) is properly full, it's not quite enough to handle things during lights off. My humididty is about 62 with lights on and AC helping, but jumps to the low 70's when lights are off. So I would say rule of thumb, 40pt per 1000W.

It depends on how much water your feeding your plants. If your feeding 12 gallons a day than you need a 100 pint dehu. If you run mini split AC will help too.

I like to keep my RH around 60% when lights are on. 40% and under when off and last week of flowering.

If your having problems with pm, it's because your night time temps drop to low. Run a heater and keep no lower than 72-75f at night.

For mold if your none organic use Sodium benzoate mix in with your nutes.