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Control to automatically switch boiler pump to constant circulation

Wellness Member Posts: 143
When the weather is hovering around design day temperatures, like now, I could use a control that automatically switches my boiler pump to constant circulation. My Triangle Tube boiler has that capability, but you have to switch it on manually. In normal operation it switches on when there is a call for heat and the buffer tank temperature is below its set point. Any ideas?


  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    Why would you want to do that? Should be running constantly at design temp, or pretty close to it.

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  • SuperJ
    SuperJ Member Posts: 609
    You don’t want it running when the boiler is off or it will destratify your buffer tank. A quick post purge and it should shut off to keep the heat at the top of the buffer where it belongs. If you don’t have a buffer, and just have a set of tees or a separator then running constantly is probably ok.