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NAVIEN NHB-150 or Energy Kinetic Accel CS

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RichRios
RichRios Member Posts: 3
Which one should I go with ? 
NAVIEN NHB-150 or Energy Kinetic Accel CS

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  • Hot_water_fan
    Hot_water_fan Member Posts: 1,917
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    What’s important to you? What kind of domestic hot water demands do you have? Do you have adequate floor space to fit an indirect tank? 
  • RichRios
    RichRios Member Posts: 3
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    I have a 35 year old EK1 2000 with a 40 gallon tank 
  • Hot_water_fan
    Hot_water_fan Member Posts: 1,917
    edited February 2023
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    Do you have any high GPM DHW loads? Like tubs, stuff like that. The Navien, because it’s a combi with an input of 150kbtu, can get you about 3.5 gpm max. An indirect can exceed that for short periods, and based on the size of the boiler can match it indefinitely. You can also go smaller because you have a tank, if that fits the heat loss better
  • EzzyT
    EzzyT Member Posts: 1,297
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    EK Accel every day of the week
    E-Travis Mechanical LLC
    Etravismechanical@gmail.com
    201-887-8856
    HVACNUTSuperTech
  • RichRios
    RichRios Member Posts: 3
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    I have 1 tub…..3 bathrooms and 4 heating zones 
  • kcopp
    kcopp Member Posts: 4,448
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    Never navien for me...
    That being said there are more options than these 2.
    Chose the installer over the product.
    Chose the best product that the installer knows backwards, forwards and upside down.
  • SuperTech
    SuperTech Member Posts: 2,205
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    Anything but Navien.  Energy Kinetics have never disappointed me. Installing contractor is usually more important than the brand name. 
  • HVACNUT
    HVACNUT Member Posts: 5,887
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    IMO, not only is the Accel a better boiler, you can actually get your hands in there to service it. 
    GGross