Morally I see nothing wrong with your strategy, I wouldn't even be against tossing in a couple cans of tear gas to get them out and then locking the doors and securing the building, they can get their stuff when they pay or it is used as collateral. 

ALOT of guys I know convert the boiler from gas to steam.

That said, he arranged the gas to be switched back into my name on the 26th.

So if you change your home from using minimal gas to using more gas with appliances, gas heat etc. this is an important step.

An offer in the blind like this means that you have zero skin in the game - not even the gas to see the property!

So I looked into it, and as it turned out, the way billing is done, there's a minimum charge for providing gas to a particular meter, comes to about $17.00/month, so between him and his landlord, gas use comes to $13.00/month, each consuming about $6.50/month gas.