I don't know I missed the talk about Zojirushi, I guess I just spaced out after conversion is limited to drip coffee which I long stopped drinking.
Anyhow here's my 2c on Zojirushi - besides they make awesome if not the best in the world thermal bottles and containers, they also make a bit less known but awesome hot water dispensers. It basically boils up the water AND keeps it warm in case of a tea emergency.
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So I'm on the second Zojirushi hot water dispenser and the reason for 2nd is since 1st one was getting too small (3 liters, less than 1gal), and secondary the new one looking a bit better in the kitchen. Both working for years - my point is Zojirushi can and DO make water heaters, so making a drip-coffee machine is right up their alley and I'm not a bit surprised that OP enjoys his.