As far as heat goes,
The ninja with steam mate can go to 110 degrees,
It eats what we call black top on pub carpets,
Plus if you want to you can use the external 3 rd vac booster.
Also, even though I average only a few jobs a week, over 3/4 years, only had power lead fail,andone pipe to steam mate replaced that was split at the coupling.
As mark says, perhaps from Nima, next step TM
That's what my next step will be!
Mr B
MrB