Hello Adam,
First, please always describe the physics of the problem you want to model. In general, ALE is not very good for heat transfer, all thermally important events happens in time scales much larger than what ALE is designed for, which are hydrodynamic events of very high gradient and short durations. If you want general heat transfer, ALE is not the right tool.
If you want to increase the T in a gas, your approach is correct.
You are navigating away from the AIS Discovery experience