[quickthrowman]

One ton (HVAC unit) is 3.5kW of heat moved for each 1kW of input power under relatively ideal conditions, assuming a max COP of 4. The unit chosen to represent the amount of heat that can be transferred is irrelevant, you get the same information.

[dzhiurgis]

So it's a gallon of kilowatts?

[anotherhue]

Four imperial kiloquarts.