My Kubota came with a block heater. I've never used it. The intake air heater works just fine. Your Mahindra does not NEED one - it just makes starting easier. I'm retired so going outside when it's really cold is my FIRST decision. The SECOND decision would be starting the tractor. I VERY SELDOM find it absolutely necessary to go outside and start the tractor when it's really cold.
- if it's really cold, stay in the house where it's warm
- if it's snowing, is there an 8" accumulation and is it still snowing. Maybe, then, go out and plow the driveway.
- remember, I'm retired and spring is only a couple months away