Um, virtually all use -ck's/Kano's cgminer as their embedded miner control software along with their own specific chip driver to communicate with it (and in violation of the open source GPL lic refuse to publish their source code)-- not Luke Jr's ripoff of it...

The only exceptions are those using Bitfury chips (Bitfury has their own miner code) or folks that switched out the OEM cgminer code to use Braiins.

The same way you would finance any high-risk venture:
Figure out all operation costs involved - this will mainly be your electric power used. Use https://whattomine.com/asic and input your hash rate and cost of power, it will output the current profit or loss.
ONLY if you can mine at a profit should you continue investigating...
No matter what, there are NO guarantees in this business.
If you are a registered business in the USA one huge perk is that you can take the cost of equipment as a tax deduction.
From the section179 site:

The 2 best that come to mind are:
kano.is Registration required, many nodes around the planet, lowest fee
solo.ckpool.org only need a wallet address for payout, only 1 node so ping times could be an issue

Why would would ANYONE even think of trying your pool when you folks are not even intelligent enough to post in the correct area of a forum? Ya know - the area that deals with POOLS?
If you're lucky the mods will move this for you...
edit: Hmm, looks they did 

Correct. The integrated PSU on modern miners is directly regulating the voltage fed to the ASIC strings vs the original way of feeding in 12vdc and then each board further reducing that to what the strings use which was around 7 to 9.x vdc.

By eliminating the 2nd stage regulators that 1 change increased overall power efficiency by around 10%. It also means that the control board talks to the the PSU to tell it what voltage to supply to the hash boards. These days that can range from ~14v up to 21v depending on the miner, what your settings are, and what the miners auto-tuning process comes up with.

Why here? AI Has nothing to do with mining of any sort... Personally I'd at least pick a tech forum that has a more general audience vs one that is focused on mining.

As long as you are not directly paying for the electricity, of course it's worth it. The only real question is will the 'free electricity' continue after whoever IS paying for it sees how much power you are using 24x7x365?

Kickbacks are not referrals. Kickbacks are private 'under-the-table' payments. A prime example was one of the eastern-European hosting farms that unknown to the actual owners of the hardware, flashed all Bitmain miners to be hosted with them to use 1 of the DevFee 3rd-party firmware's out there.

Yes, how the DevFee is set and how much it is is up to the folks that modified the firmware and yes they do 'volume discount' deals with farms using their wares. They are of course privately negotiated deals but it is still just normal business practice. Problem with the above is that the hosting site made no mention of it to their customers. Folks only found out after the hosting company closed and folks that elected to have their hardware sent back to them or sent elsewhere discovered the miners had been flashed to non-oem firmware.

Referrals are fully public promotional marketing. Along with the volume discounts for hosting sites there can also be direct payment of a percentages of the DevFees collected back to hosting sites. Again, fine - as long as the folks who own the hardware are told about the 3rd party FW option and can say yes or no to it. Being paid for flashing en masse miners sent to a company w/o knowledge or consent of their owners - that is illegal kickback.

I still say that it is those storage units/warehouses full of unused miners that some of the mega farms were reported to be sitting on a couple months ago are either finally now being installed and brought online or were sold other business entities (other farms) to cover expenses/just move money around and are now coming online...

I've had him on 'ignore' ever since he opined in his local-node solo mining thread that I'm some sort of "venom-spitting demon with my never helpful and often 'hateful' replies to folks"....  Ja right. One scan through my post histories blows that right back up his backside where it came from...  

edit: btw that ^^ is the most 'hateful' I've ever posted... oh, and to be clear its *not* Sledge0001 we're talking about though the person has of course piped in there on Sledge's separate thread on the subject of mining to your own node.

Because a while ago a certain asshole started a vendetta against Kano when he did not get answers that fit with their view of how things work or more to the point, how they want things to work, decided to post the entire list of users here. While not directly a security issue it *did* give potential hackers a nice list to try using for attacks.

In addition to what others have said about virtually ALL 'Bitcoin mining apps' being scams I suggest you read https://bitcointalk.org/index.php?topic=2415854.0 point-3 for the reason 'apps' cannot be used.

No. 80% of rating is the typical load de-rating used to ensure adequate reserve/safety margin and it should be applied to all electrical sources for gear that is ran 24x7. That includes not only transformers but also distribution panels, wiring and fuses/circuit breakers.

Well, remember that only a few months ago there were 1000's of brand-new, still-in-their box miners sitting in storage because several mega-farms couldn't afford to use them.

Bet they are being installed we type...

Everything you listed is for mining altcoins aka crapcoins- NOT BTC which is all but impossible to mine using anything but an ASIC-based miner. As such, discussion of that gear has no place in this BTC-only area of the Forum.

If you want to discuss altcoin hardware then use the area here that is dedicated to it.

Er?
Regarding the highlighted part, try moving the decimal point many many times to the left....  for any single piece of hardware regardless of its speed we're looking at ballpark of 0.00000000000000000001% chance (not a real calculation but you get the point...)

Yes but...
You must NEVER have the 2 PSU's feeding the same hash board. Connecting multiple PSU's in parallel will result in them fighting each other and eventually things go poof rather quickly.
Use 1 PSU to power the controller and 1 or 2 hash boards (turn this one on 1st) and the 2nd PSU to power the remaining boards.

NEMA 5's are for 125VAC - NOT 240v. 240VAC connectors are NEMA 6-x so you had better make sure what the voltage is. The connectors look similar but the horizontal and vertical blades are on different sides so they cannot be accidentally plugged into the wrong mating half.

The shameless self advertising for that work-in-progress algo switching pool was deleted by the mods. 

It depends. If the miner is part of a registered small business in the USA then equipment costs eg miners, is a tax deduction so in a sense RIO is immediate...
https://www.section179.org/