Hoodle, the kero/diesle heater will give you all the heat you want. Normal wanding will give you over 300 dg, tile 250 dg +, no HX.
Marty, key is on the engine and the switches are labeled, there is an extra switch in case you want to add something. The second video after the install shows the labels.
Kevin, If you want the dual splash just ask for it when you place your order, this was built to the customers request. As for the cooling kit, it is 20 ft of 3/8" hp hose, thats all you need, simple but effective. Timing the blower to the engine is something that Kelly doesn't want me to talk about, but I'll say this, it's a smooth runner.
Jimmy, the switches are heavy duty industrial grade that will hold up for years.
This machine was built by Kelly and Mitch, and they have seen and worked on enough poorly designed machines to eliminate problematic issues.