Replaced my thermostat for $ 302.00 (w/ $ 55.00 service call included). Did on line search and thermostats run between $ 50 and $ 100, would NOT suggest using A. Johnson as I felt their price was unusually high. Problem is fixed, tech was good but I fell like I've been ripped off by A. Johnson plumbing & heating - please tell Angie's list for me !!!