I bought my first of three so far. 8kw. I raise Beagles in upstate Idaho. My kennel is heated by propane, electric, or diesel.
This heater has been running nonstop for three weeks so far. I am able to direct heat where needed. With puppies born in our cold climate this unit is the best option for me. No complaints and quick delivery. I use heater on lowest setting and puppy kennel stays between 78 and 89 degrees. Low fuel use and 100% satisfied so far.