Pay attention to specific parameters: power consumption in operating mode, energy efficiency class, and the presence of automatic shutdown functions when idle. Manufacturers are increasingly equipping devices with intelligent controllers that adjust modes to the season, load, and family needs, which further reduces costs.
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It is equally important to consider the size and actual use: choose household appliances that meet the needs of your home so as not to overpay for excess power. It is often more cost-effective to purchase several compact energy-efficient devices than one large one, which allows for flexible load management.
Practical advice: before buying, read reviews about real consumption and operating conditions in your climate. This helps to choose a model with the best price-efficiency ratio.