thoughts on Camco 11673 Hot Water Hybrid Heat Kit ?

I installed an instant heat kit into a 33 year old water heater. It works absolutely great! I highly recommend it if you regularly have full hookups. I found that my tank actually had two ports for an anode. If yours also has that second port, you could put the heater in it. Otherwise you have to take out your drain and replace it with the heater element. You can still open it up to drain, though.

Jose