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Navien Heating box.

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  • Navien Heating box.

    I need to know if anyone out there has installed these units with any tankless units, and how was their performancE. I prefer mod/cons with indirects, but sometimes u run into the need for a cheaper install.

  • #2
    Re: Navien Heating box.

    Took the leap & installed the heating box next to a rinnai com. and it works amazingly well. A little noisy when it is running, I believedue to pump flow thru the mix valve. i recommend this for duel systems. I used the open loop design for this unit due to redundancy of the gas furnace & wood f.p. Closed loop one is about $1000 more.

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