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    meltrol Posts: 74, Reputation: 4
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    #1

    Dec 14, 2010, 05:30 PM
    Looking for series 20 digital thermostats
    I have a four zone (Automag), hydronic, series 20, gas fired heating system in my house. I installed it several years ago and used Honeywell T-87 mercury type thermostats throughout. I'd like to convert to digital, non programmable thermostats... preferably Honeywell. All the thermostats I find lately seem to be geared towards combination hot air furnace/air conditioning systems. The type thermostats I need simply function as a SPDT switch... three terminals. Any suggestions?
    Thanks,
    Bill

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