I had a thought for how you can mine using more normal power. Instead of trying to do transaction validation type mining, you can provide service mining. I use this term because when you do service mining, you are providing a service like network or storage. You could run a storage node which pays you coins. For example a Filecoin server does mining, just not transaction validation mining. Those servers run more on 120v and would be less heat / electricity. Just an idea (I am looking into this as well).
As for my test lab, it got moved out to the garage. Its running off a 100amp panel circuit run to a distribution box with 2 50 amp breakers. From there it is going to run to 2 60 amp metered PDU, so I can gauge load per PDU and overall. So far I have 3 running at 26 amps continuous. Will bring more up later this week.
Filecoin 'mining' is not 'Bitcoin mining' though and we would need to discuss on another topic outside 'Bitcoin' subforum.
But sure, there are other ways to mine that are better suited for home use. While I'm all pro-Bitcoin myself, for small-scale home operations I see GPU mining as a quite profitable and viable option, since the larger fans are quieter. If / when the shitcoins you mine (and instantly convert to BTC) with your rig plummet in value and get no longer profitable, you can still use the GPUs for other things, thus they keep a quite high resale value even in a crypto bear market.
I should mention nowadays home miners (pod- and stick-style) from Futurebit and GekkoScience start to be a thing again, but they're less profitable than a GPU rig; though they directly provide hashpower to the Bitcoin network, which a GPU rig can't accomplish.