Re: dream machine design...


"Dan Bollinger" <danNObollinger@xxxxxxxxxxxxxxxxx> wrote in message
news:i4adnfYtZq0XDlHYnZ2dnUVZ_ualnZ2d@xxxxxxxxxxxxxxxx
may I add no. 16:-
- a small pump circulating water between the brew boiler and the group.
Thermocouple for the PID to be fixed in group - so the temperature
indicated, is what you get.

Recirc pumps are common in a lot of buildings and industrial equipment
such as oil to keep compression molded heated to temperature. If you use
one, you can reduce the mass of the group head significantly, and adding
grouphead insulation would be advised. I know of no miniature recirc
pumps rated NSF for these temps. The smallest I know of are the ones used
on hydronic heating systems. 110VAC, almost silent, fits inside a 5" cube.

I guess you would need to isolate the recirc pump, just before the brew pump
kicks in?

Bertie


.