Anyone know where to buy an electric heat exchanger similar to the one in the brewmajic system? I'm looking for a way to maintain and adjust mash temperature if I strike a little low somehow. I do not wish to do electrical work so I don't want a really powerful one that would be used to step mash, ect... Just something to make minor adjustments of say 5 degrees in the mash if I strike too low for some reason.
The plan would be to maybe mount it to the top of my mash tun right before a sparge arm with a temp controller upstream of the heat exchanger.
Lastly, It would have to be a standard voltage so I could just plug it in (again, no electrical work required)
It's gota exist somewhere right?