It's a bit noisy if used indoors. Fairly simple startup procedure, make sure to read the manual.. I know us men don't do that, but you'll need to prime the oil for initial start. I didn't prime anything because I didn't read the manual lol safe to say, it fired up in minutes and heated up my 1200sqft shop in 20 min to a toasty temperature. Using heat wrap on the silencer is handy, plus the provided head sleeve works great too