Been out of the carpet cleaning industry for several years so I’m a little out of the loop when it comes to recent truck mounts,etc. Owned a heat exchange truck mount when they first came out and it totally sucked. Couldn’t keep consistent heat and couldn’t get near the heat that a propane heated mount can. Most of the new mounts nowadays utilize heat exchangers. My question is, have they gotten better? Can they keep up with a propane heated mount? I’m starting my business by next spring and need to know what kind of mount I should buy.