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Vehicle engine heaters increase winter power bills, but you can
easily lower costs by following some simple energy-saving tips and
by installing energy-saving devices.
Vehicle heaters are often plugged in unnecessarily. A warm engine
takes from three to five hours to cool down, even in very cold
weather. If the vehicle sits for longer, manufacturers suggest
heating should still not be required unless the outdoor
temperature drops below -10ºC.
Regular vehicle maintenance will also improve cold weather
starting, reducing the need to plug-in. Little things like using
lower viscosity oil (5W30) and regularly inspecting air and fuel
filters can improve your vehicle’s performance during Alberta’s
cold winters. And on the days you need to plug-in your vehicle, no
matter what the outdoor temperature is, four hours is the maximum
time your block heater needs to be plugged in before you drive
your vehicle.
Inexpensive controls help to save money when you plug-in your
vehicle over winter. The first three devices are installed
externally, normally on the electrical outlet.
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Thermostats – These devices activate at a predetermined
set temperature. Some thermostats also increase the length of
time the outlets are turned on as the temperature drops.
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Time clocks – Time clocks regulate outlet operation
according to programmed time periods. Timers can be programmed
to turn the power on and off to the block heater in cycles that
suit the users needs, the vehicle condition and the weather
condition.
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Combined thermostat and timer – This combined unit turns
the power off when the temperature is above -10ºC. Below this
temperature, the power is activated only when the timer
indicates.
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Power saver cord – Power saver cords have an internal
thermostat. The thermostat monitors the temperature of the
coolant in the engine turning the block heater on and off at
specified temperatures. This maintains adequate engine
temperatures to ensure easy starting. A power saver cord may
require a professional mechanic to install.
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