Your browser does not support HTML5 video. Quick to assemble and get running. Instruction book is worthless, English translation makes no sense. Plenty of YouTube videos to explain what to do though. Makes good heat, my testing says it can match a 10,000 BTU electric baseboard heater in cold weather. It is rated at 17,000 BTU, (5kW) They don't specify if that's 5kW on the burner (input rating), or coming out of the heat exchanger where it matters (output rating) I suspect we're getting the input rating, which is how many furnaces are sold. Also note this package does not include a grill cover for the heat duct pipe. Video illustrates the 6 minute computer controlled startup sequence. The camera was very close, it is not as loud as it sounds in the video. Be sure to let it complete the automatic shutdown sequence when you are done with it. It must cool off before turning off the blower, or you will damage internal components with residual heat.