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buderus gb 142 wiring question
The GB142 domestic hot water sensor is a 10K Ohm thermistor, not an open/close signal. It is suggested to use the sensor include by Buderus or other 10K Ohm sensor. The Buderus sensor can be filed down using a flat file till it fits in most aqaustat wells.
The option presented by Dobber will work, but the tank temperature will not be controlled by the GB142. This is suggested as a last resort.