Reader Service No 126 PROGRAMMABLE ELECTRIC THERMOSTAT The Pro- Stat programmable electric thermostat ... There are two-stage heating and two- stage cooling controls allowing the user to program each day of the week, with dual setback and set-up adjustments for use on weekends. ... For installation, only six 24V wires are required. KeepRite Inc., P.O. Box 460, Brantford, Ont. N3T 5P4.