Hi Ken.
Big Bertha (4840) the model I have does heat water on the Extra White Program. Also it has a Sanitize program as well.
I used the Sanitize Once on a load of whites including socks and the elastic in anything in that load was toast. Clean and White, but Toast.
Sanitize is the Boil Wash. And Max Spin is 1400. But Ken, I can tell you that the Maximum Spin Speed can really wrinkle some fabrics. I have found that 1,000 (High) is sufficient.
All the other programs are good. Custom Program gives you your choice of Wash Temp and Spin Speed. The other Programs are pre set but I think you can change water Temp and Spin Speeds. I pretty much use Extra White and Custom. Express for Bathroom Rugs and Laundry that just needs freshening.
Comforter setting works well.
And the 4840 is 115 volt.