The Danfoss 102 087N6521 Heating Timer Mini Programmer Controller is a versatile and reliable heating control system suitable for use with boilers, any room, and even storage tanks. This programmable controller features a 24-hour timer and a range of control styles including rotary knob, switch, and analog/mechanical. With a sleek white plastic design and surface or wall mounting options, this timer from Danfoss is a convenient and efficient addition to any home heating system. Made in the United Kingdom, this 230V controller offers a durability of 135mm resistance properties.