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HWH, before or after existing boiler?

overpop Member Posts: 52
Weil McLain boiler with domestic hot water built in but my buddy wants to add a Geospring inline because the hot water is spotty. Should it go before the boiler or after? He's saying after. The third choice is to run parallel?


  • bmwpowere36m3
    bmwpowere36m3 Member Posts: 512
    Why not get an indirect and pipe it as a zone with priority.... lots hot water and efficient.