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Low NOx cast iron boilers and b vents

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Northsong
Northsong Member Posts: 1
in Gas Heating

Hi, I need to replace my b vent, water heater, and very soon 30 yo Lochinvar boiler. I live in CO, and unless I can find a regular boiler before the stock is depleted, I have to go low NOx. I'm very hesitant to to replace boiler with a high efficiency boiler because of my 180° system, increased initial expense and increased maintenance expenses. I'm planning on mini-splits or a heat pump for cooling and perhaps some heating, but am not ready to go all electric. What is the recommended way to go? Thank you for your thoughts.

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 20,238

    What do you mean by a "regular boiler". Gas fired cast iron boiler? Or a high efficiency MOD CON. What type of boiler is your Lochinvar? There are also copper fin tube boilers.

  • kcopp
    kcopp Member Posts: 4,689

    Rent a trailer and drive to Cheyenne….

  • hot_rod
    hot_rod Member Posts: 27,509

    typically you only need 180 SWT on cold or design days, with outdoor reset control the boiler supply will be adjusted down from 180. So a mod con or copper fin boiler are good options.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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