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In most cases, such as this one, tapping 240v branch circuits to feed 120v outlets is not permitted. Even in the rare scenarios where it is permitted, most inspectors you'll encounter wont like it anyway. Don't put anything other than 240v 30a rated receptacles/plugs/equipment on this circuit...

Given the universe is infinite, and the fact that we are here, one could certainly ascertain that the rate of occurrence of life must be non zero. If there were intelligent sustained life anywhere near us(local to our solar system), capable of traversing the solar system, they most likely are...

The 630 is two 315's in one fixture. The cmh's do offer a pretty versatile spectrum from what I've heard, I haven't ran any yet and probably won't mostly due to the heat they put out. I had the opportunity to check out one once, it was being used on a mover as a suppmental light source, and it...

With the space you have to cover, and your budget, I'd say keep it simple with tried and true HPS and magnetic ballasts. 4 600 watt setups will get you close(2400w)to your desired wattage. You'll have around 37 watts per square foot. On the low side but still functional. I'm sure there's others...

Zero smell in a 1 bedroom apartment is a tall order, especially if you plan on venting the exhaust to inside the apartment. With the right strain and setup it could be possible. Opening the tent though is gonna release some dank all over your wardrobe though. Unless you build some kind of faux...

With some plywood, mylar, a few pieces of hardware and some poly foam insulation you could make a well insulated sealed enclosure to whatever dimensions you like. Not saying a freezer wouldnt work, but those things get ultra gross when they get warm usually, and youd be taking most of it apart...

Id say vent the tent outside, put the window unit in and leave the top window cracked a bit. Leave the register in that room open, as it will help provide cool air and blend your fresh air. This way the only negative pressure you'll have is inside the tent, where you want it. The window unit...

At this point I'd really suggest getting a legitimate electrician in there to check things out. If you want to check the lugs in the panel shut the main breaker off. The line side(from the meter to the panel) will still be energized though. 1000v insulated tools will give you some extra peace of...

It varies with location, but for a brief period in the 70's quite a few homes were wired with aluminum wire. If the terminations aren't checked and tightened they often become loose rather quickly, as aluminum has a rather high expansion rate. This can lead to breakers tripping if you're lucky...

In that case a booster fan wouldn't hurt, you're correct that it's wise to stay within the filters rated cfm though. I'd say go for it and see if you can measure any difference in cooling.

Pretty weird stuff. Having several kids myself, I can't really envision that kind of stuff leading to anything good. I think he's just another doofus keen on feeding the public what they like to eat, at the cost of his family's well being.

Fresh air from outside the room or outside of the house? Assuming it's from in the house, you might have to add some make up air from the great outdoors. Otherwise it's sort of like putting your hand over a vacuum, not enough air going in and it's choking the fan. Most houses have trouble...

You'll never beat the machines. That's for sure. It's mind boggling the amount of money and resources all the big boys pour into full tilt data centers running algorithms. They sense a stock rising and are able to buy it before it even goes up and sell it before it gets there. Penny stocks...

I herniated L5-S1 pretty hard about 8 years ago. I hit the pt as best I could and all issues kind of went away within a few months. About 5 years after that, I had stopped the pt and never really even bought about my back. I was moving some very heavy equipment by myself like a jackass, and...

Where is the fresh air coming from? Are you venting outside from inside?

I'd go for a 6" slab, good gravel base with vapor barrier under some 5/8"s rebar. Drain your footings properly, and make sure they're placed below your average frost line. You'll most likely regret not doing it. I wouldn't expect any building to be airtight, but a concrete floor vs dirt will...

What sort of square footage/dimensions are you working with? What type of climate are you in? You might want to look into a HEPA filter rated to handle your fans cfm output. Even they let a fair amount of spores/pathogens through, but are excellent at filtering particulates out, and can last...

Anything conductive should be grounded. You're correct about the grounds providing a path for any faults to take back to the panel/service. Yes, you can splice all the grounds together to the one coming from the wall. The only circumstances that wouldn't permit that is equipment requiring...

May the force be with you.

Good move on the contactor, most consumer grade timers have tiny little junk relays. Good for holding real contactors and small house appliances but that's about it. Not sure if you bonded the neutral to the grounds in that subpanel, but if you did, remove the bond and isolate the grounds on...