Check the Energy Efficiency Grades of Winter Heating Appliances

Which heating appliance categories are in the list?

In the category list on the Korea Energy Agency's Energy Efficiency Management System product search page (date checked: October 6, 2026), the categories related to winter heating are as follows.

The list also includes refrigerators, washing machines, air purifiers, clothes dryers, bidets, air fryers, and others. The number and makeup of categories can change over time.

What do you compare on the lookup screen?

The Korea Energy Agency says you can search all products reported under the energy efficiency grade labeling system. It lists five items to check and compare for each product.

• Energy efficiency grade
• Power consumption
• Capacity
• Carbon dioxide emissions
• Annual energy cost

In the list of categories the agency's system overview names as displaying annual energy cost, electric fan heaters and electric heaters appear, and electric heating and cooling units and household gas boilers do not. The items on the label differ by category, so look at the label of the product you will buy together with the lookup result.

What should you watch for when reading lookup results?

The product search screen has two notes. One is that, because of measurement method changes and tightened standards, the efficiency grade and efficiency can differ by a product's manufacturing date. The other is that, for company reasons, a lower efficiency or grade than the first reported measurement result may be shown on the product label. So it's better to match the grade and manufacturing date on the actual product label against the lookup result.

What about products with no label?

If there is no grade label, check for the minimum energy performance standard label. In its 2021 notice, the Ministry of Trade, Industry and Energy said there are 33 categories that must carry an energy efficiency grade or minimum energy performance standard label. Products that fall below the minimum energy performance standard are banned from production and sale. The number of categories varies with the date of the notice, so recheck the agency's list when you buy.

What do you check before buying?

• First check in the product search list whether the heating appliance you want is in an efficiency management category.
• Compare power consumption and annual energy cost among candidates in the same category.
• Check that the grade and manufacturing date on the product label match the lookup result.
• For categories not in the list, there may be no grade label, so check the power consumption on the manufacturer's spec sheet.