For folks running Windows 10 home, there is a vendor with working upgrade licenses to Windows pro. I bought one cheap which was a ripoff and eBay refunded immediately. I then tried another that was a legal key and finally got my wife's Lenovo All In One upgraded to pro. So now our Surface Pro 3 and 4 and Dell Venue 11 Pro tablets, and my Dell 2720, are all Pro and set to delay updates until they have been out for a few weeks and bugs fixed. Email if you need to upgrade. My email is rv at rvroadie dotcom.
Carl, I just looked at Phil's rig and mine, and I think you are wrong in that the flexible ducting you show does not connect to the front bath area. In fact, that is probably the ducting at the top of your picture in the background. The probably 6 inch by 2 inch metal duct. It will connect to your floor vent in the bathroom. That flexible duct should be staying behind your sliding doors and heat your plumbing area. And whether it is insulated or not should have no effect.