I used to have a 'Spirit 1' no heater. I think the 2 has a heating system.
It was OK but the handtool supplied at that time was poor,
& the tiny piston pump only produced about 35 - 40 psi.
I mounted a solvent capable 'Flowjet' on the top to give sufficient spread to a curtain tool.
I gave up dry-cleaning ages ago, so sold it off.
Definitely not suitable for carpets, insufficient power!
Bryan