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Before buying, it is useful to compare models by several criteria: power consumption in standby mode, power in operating mode, noise level and functionality. Sometimes a standard set of functions can be replaced with a simpler device without losing comfort.
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Installation and use also affect savings. Correctly setting thermostats, protective modes and regular maintenance extend the service life of equipment and reduce repair costs. Simple monitoring of the condition of the equipment will help to avoid unnecessary expenses in the future.
