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aprilaire transformer

  1. HVAC
    Trying to decide between two options for installing humidifier transformer: 1) Mount and wire humidifier transformer on box with furnace power on/off switch. That's where doorbell transformer is, although humidifier won't work with doorbell transformer output. 2) Mount and wire humidifier...
  2. HVAC
    I just bought an Aprilaire 58 digital humidistat (I believe this humidistat comes standard on Aprilaire humidifier models 600 and up) to install on my existing model 550 humidifier. I think I understand the instructions pretty well, except a couple things. The instructions say it needs a...
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