Which Chinese Diesel Heater should you buy? Testing multiple brands

Get one and stay warm anywhere!

I've been using these for a couple years now with wonderful results.  Mobile homes are very difficult and expensive to heat. This cost me an average of $120-150 monthly per unit.  About 1 gallon of diesel a day!  Great for garages, campers or anyone off grid.  Basically they are all same same just different screens.  Shut the power off for rolling black outs I don't care!  This little unit will run for more than a day on a fully charged battery.  

Not sponsored by any of these brands so honest opinions given.

My furnace was constantly running and electric space heaters in each room but it was never as warm as it is now with just 1 of these bad mama jamas running 24/7!

I run 2 in my big shop.  1 in the main area and another in the tool room.