between brews

Pleased with the HLT/heat exchanger project shown in a previous article, my friend Rick asked me to help him with his MLT build. We used the same techniques and many of the same components for this phase of his three vessel brewing system. This was the simplest kettle of the project, requiring...

In the first segment I described the necessary plumbing and valves to make low pressure gas (either LP or natural gas) burners electrically controllable. To achieve control, we need to be able to apply 24VAC when we want flame, and to remove the voltage source when we don’t want flame. In this...