Ok, personally i have used just about all kinds of heaters over the years. While living in Havre Montana in the late 80's my truck had Lower radiator heater, a engine block heater and a battery blanket heater and i occasionally had to use a salamander heater to free up the transmission :laughing: :licking: :laughing:. 60 below does a number on any rig.
My older JD870 came with a lower block heater that worked great for over 14 years..and was still working when i sold the tractor.
My new Kioti DK45 HST did not come with a heater. My dealer was reluctant to install a block heater for some reason. I was going to try to install a lower radiator heater, but on the HST cab tractor, the lower radiator hose comes out of the radiator and makes an immediate 90 degree bend up. there was no room to install one.
I use a magnetic heater on my whole house generator oil pan, and it actually works great on that application. The pan is fairly small and i have never had an issue with hard starts in winter for over 16 years with that unit. Its attached to a thermometer equipped plug in unit so it operates 100% of the time temps drop below 35F.
The oil reserves on the Kioti are WAY to large for a magnetic heater. I went with the Wolverine glue on heat pads
Wolverine Heaters - The Most Trusted Engine Oil Heater For Cold-Weather Starts
I am really impressed with these units. I placed 2 small 125 watt units on the split oil pan base (the front axle splits the oil pan, so 2 heat pads were needed) and i also placed a 250 watt heater on my 25 gallon hydraulic tank that runs my snowblower.
No matter what anyone here says, the tractor starts easier, no lugging , and runs smoother after the heater has had a few hours to work. Mine are installed on a timeclock to operate 2 hours prior to my normal winter plow times.
If no snow is predicted in the near future, i simply click the timer button that delays the auto timer from working until the button is pushed again.