IMO the big factors are wands,
glides and hose sizes. True story, we were cleaning an events center in town about a year and a half ago. My helper started on the job using the Sizzler36 and I showed up later in my other truck that had a Genesis59. The Sizzler set up had a standard 1.5" Steam genie wand he was using. On my truck I had a 1.5" PMF wand and my Stanley 2" wand. The 59 made great use of the 2" wand. Neither 1.5" wand had a glide. About 20 minutes in the valve cracked on my Stanley wand so I hooked up a short whip hose and the 1.5" wand to finish the job. We were both out about 200 feet working back towards the trucks and I'm telling you there was ZERO difference between the 2 wands 'power wise' . I was playing back and forth between the 2. To get the higher heat I had to run the Genesis at higher rpm so the blower was spinning pretty fast although I don't recall the rpm. My point is, when using the 1.5" wands w/8ft. 1.5" whip hoses the 59 didn't do any better than the 36. Same 200ft. lengths of 2" vac hose on each and Both machines had precision relief valves (Kunkle and Bayco). Simply put, you were only gonna pull so much cfm through that smaller tube. Right then and there everything was put into perspective for me. If you're not going to Use the power of the big blower there was no point in it. Guys running around using big blowers and choking them off with small hoses and wands are just wasting fuel.. The extra cfm is going out the relief valve and the drivetrain is working overtime when it doesn't need to. If you're using a 2 inch wand then the 59 blower will make you tired quick. However, add a glide and I think everything is effortless.. When I used my 2" Stanley wand with a holed Greenglide I could run it on either unit and push it just as easy as the other.
