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do combi boilers typically have outdoor reset controls

weil_failweil_fail Posts: 34Member
edited August 25 in Gas Heating
so, I had been looking into condensing boilers with an indirect tank, but I might be able to use a large combi boiler (liked the Noritz EZ98 at 9.8gpm or EZ111 at 11.1gpm). however, it's hard to tell from their site whether they do modulating operation with an outdoor reset control to lower the boiler water temp during moderate seasons (improves efficiency).

is that feature common for combi boilers, and I'm just not doing well googling it?

if it's not a common feature, do you know which brands support outdoor reset controls?
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Comments

  • hot_rodhot_rod Posts: 11,684Member
    Are the EZ models combis or just tankless water heaters?

    Most every combiner's boilerplates I know has some sort of ODR function.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    The magic is in hydronics, and hydronics is in me
  • weil_failweil_fail Posts: 34Member
    ohh, good point. they may just be water heating. I found them when searching for combi boilers, but may have gone off track
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