Heaters > Thermostats > Built-in Thermostats Built-in Thermostats TPI Baseboard Heater Built-in Thermostat Kit SKU TBD Volts 120 - 240 - 277 V Color Ivory & White Price $36.30 x Add To Cart TPI Baseboard Heater Built-in Thermostat Kit SKU TBS Volts 120 - 240 - 277 V Color Ivory & White Price $27.50 x Add To Cart TPI Double Pole Thermostat Kit SKU TSH2TX Price $54.45 x Add To Cart TPI Single Pole In-Built Thermostat SKU 3900T1 Volts 120 - 240 - 277 V Color White Price $42.35 x Add To Cart My Account Login Forgot Password Register New User Sign Up For Email Enter your email to receive exclusive offers, tips, and more straight to your inbox.