Live Plumbing Help Plumbing and Heating Answers

The aquastat also regulates the temperature of the boiler water. This is just a simple bmp diagram of how they are wired.

The Honeywell zone valve These valves have been around for a long time, and have changed over the years. But you can still (in most cases) replace the Head and the ball with out having to replace the body.  

 

Honeywell zone

 

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