Old school baseboard heat heating bills are 300 a month in small 4 room homes.
I am attempting to have s-3's mining in one or two of these homes. This could make nice money for me and the home owner's that I recruit.
While Antminers aren't known to catch fire, be careful with extending out your liability to other people's homes. It's one thing to mine in your own house and keep an eye on your equipment. It's another to have somebody else's home go up in flames due to a power supply failure - and that probably won't be covered by the homeowner policy.
This kind of thing should be covered by the policy of the homeowner who has the miner in their home. As long as they don't intentionally set the miner on fire, and as long as it's not considered to be foolishly dangerous (e.g., you know there's a like a 90% chance it will burn your house down), it should be covered.
along that note. if you use an atx psu like an evga you should be good. if you use the dell server psu's I would worry due to exposed wires.
The s-3's are not a short hazard the s-1's are a short hazard.
an atx psu is not a short hazard the dell/hp servers are a short hazard.
Home mining is going to have spot gear on a solo pool like bitsolo.net . Spot miners like s-3's where heat is needed.
Home miners with 15btc worth of miners (s-3's) in a garage hashing 9.5 th at 7320 watts will stop.
Since the home miners having power cheap enough will limit that type of use quite a bit.