A 10 year warranty doesn't mean the fan is designed to last 10 years. What it means is the manufacturer decided to give you 10 years to have it repaired or replaced if your fan has a manufacturers defect. They put those long times on the warranties because manufacturers defects are far and few between and people mistakenly believe it means the product should last that long. As far as noise is concerned, the fact that the manufacturer doesn't list the dBA for the fan is a red flag that it is a loud fan (probably 55+ dBA) which is comparable to a window air conditioner unit.
I'm not sure how that would affect the needed temp range for LED, sorry. @coreywebster may be able to answer that.
They make some pretty decent chloramine filters as well. I think I paid ~60 each for the ones I'm using across my property and as long as the flow is on low-medium low I see a massive reduction in chlorine and chloramine (it's critical for biodynamic farming to keep out anything antimicrobial).
Neither chlorine, nor chloramine, is an issue for cannabis (or most other plants) at the levels that are permitted in public water supplies. There's been a lot of discussions about this lately and there is plenty of science out there that proves both are fine at those levels.
I always use spring water, 39 cents a gallon at Walmart. I bring a few 5 gallon jugs and then mix my nutes with that when I feed.
It's not the plant itself that's the issue. It's the microbiome/mycorrhizae that you're cultivating that produces the nutrients for the plants. They are much more sensitive to chemicals like chlorine and chloramine.
Throw a bucket of water in there at 80. Spray the plants down. Humidity problem solved.
I'll see if I can find the article I read recently. The research team fed plants highly chlorinated water (I believe over 100ppm) for a pretty extended period of tiem. Even though the microbe population took a small hit, the pupulation was back to their per-treatment levels in 48 hours.
It's becoming pointless to continue this discussion so all I can say is "good luck with your grow and have fun!".
I bet it works for you, right? I used to, and then I stopped...guess how much of a difference I've seen in the plants? BTW, I'm also growing completely organic right now with chlorinated water. You've seen my plants, do they look like they are suffering or that the soil is ruined?
Because you said you have trouble controlling your humidity when you raise the temp in your tent. Raising temp LOWERS humidity.
I would actually be really interested in seeing that study when you find it. A lot of organic/biodynamic farming is based on less-than-scientific testing conditions and traditions passed down for generations....which definitely doesn't mean it's correct.