They should be able to give you and idea of the temperature of the neighbors.

In many areas, there is a minimum temperature required in a rental.

With indoor temperatures here 110 degrees in the summer, if a tenant's A/C unit go's out, you are going to pay for them to stay in a hotel until the repair company with a 3 week wait period can get out to your home, and hopefully, they have the parts in stock.

if its in the lease, you are most definitely supposed to turn the a/c on regardless of your comfort level the same way a lease may state that inside temperatures cannot go below a certain threshold in the winter.

Since it's metal, I'm thinking I could treat this like auto body work.. patch the metal with welding, then body filler and smooth out, prime/paint, etc. 

Exactly what a dance-off has to do with solvent-welding Schedule 40 DWW pipe, I still haven't figured out.

As a result, the pipe was not able to drain properly and once below freezing temperatures came, the pipe burst in the basement.   

Oh.. and many people are also confused because they say they have a Lloyds of London flood policy - There are many Lloyds of London and they all have different temperatures for covering flood risk and they all have different underwriting and claims payout.

If you use option 2 there will be only 1 thermostat to decide the temperature, so it will probably need to be in the master bedroom. 

Last year, he had to sit and stink through temperatures hot enough to make a donkey lie down and explode as techs dithered around the ancient A/C.