E1-BCANRT1W-06 Laing Autocirc Pump with Adjustable Thermostat and Timer The Autocirc pump is installed under the sink or faucet farthest from the water heater, where hot water usually takes the longest amount of time to arrive. Adjustable Thermostat ModelsThere is an adjustable "ON" temperature range from 77°F to 91°F (25°C to 33°C). This built-in temperature sensor will turn the circulator OFF when it reaches 95°F (35°C) and turn the circulator ON when the temperature cools down to the "ON" temperature set point. Features:Built-in 24 hour timer which allows the selection of systems operating periods to suit family usageComes complete with a 6 ft. long power cordBuilt-in adjustable "ON" thermostat