I am currently going through a deal with my landlord. The furnace has been acting up and is blowing cold air. About 3 days ago we got our Gas Bill from Peoples gas. IT WAS 200 DOLLARS! So we called the landlord to come fix our Furnace. About 2-3 weeks ago they came and replaced our thermostat becuase it wasnt working. It turns out that the guy that they had install it did it wrong and somehow it ended up where the AC runs while the Furnace is on.( found that out just now) My question is, Is the Landlord Liable for the gas bill since they put the thermostat in wrong?