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.
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.