Because of their safe design, Warmrails can operate 24 hours a day at
the factory set temperature, using less electricity than a regular
light bulb! You can operate a Warmrail using a timer if you wish, but
most people find the comfort and convenience of Warmrails so appealing
that they run them continually. We do not provide temperature controls,
since Warmrails are designed to operate to the optimum performance
level.