It has two block heaters, and a battery heater, but when home, it stays in the shop. On the cold night, like, under 32F, I leave it run, it burns .3GPH idling with the EX brake on, holds 180F and 500F on the EGT. It has a winter front too.
When we are away on hockey trips, and it is cold, it runs all night, longest it has ran was when I ran pilot car to the north slope, 5 days, never turned the key off, rattled away like a trash can rolling down a hill.
You want a smoke show eh? It does that nicely!