heatmor owb pumps central boiler thermopex

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  1. T

    Help with OWB, is my pump right?

    Hi folks, My boiler is a heatmor 100cs. Roughly 125' of 1" thermopex each way, boiler is 125 from house. Buried 3' down Taco 0010 at the boiler 100plate sidearm in the house, Taco 007 moving inside water thru oil furnace. Heats house fine if one zone is calling or its warm out. Very slow heat...
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