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how do i set white rodgers 11B18-101 MAXIMUM WATER TEMP for a boiler.
There are both radiators and baseboards


  • Is this being used as a

    High Limit for a boiler or as an aquastat for domestic hot water? Is this baseboard,radiators, radiant, hydro air etc???

    The unit operates between 100 degrees to 240 degrees (F) with a differentail of 5 degrees to 45 degrees if it is a 11B18-101, there is an 11B18-153 which is 35 degrees to 110 degrees.

    Need a little more info to help you out.
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