This product works as advertised. Easy to install. Remote works as intended. I use it to heat a small barn style insulated shed10’x12’ where I house my inverter generator to power up my off grid solar system when it is cloudy and needs to be bumped up. When it’s -40, yes -40 this little diesel unit didn’t skip a beat . Warmed up the shed within an hour to where the generator remotely started with ease . Worked so well I purchased a second unit for a sea-can where I keep my ATV. Same results with the second unit.