Ключевые слова: air, aluminium, background, central, column, comfort, concept, convector, convenience, design, device, domestic, electric, element, energy, equipment, heat, heater, heating, home, hot, house, household, icon, illustration, low, modern, object, optimal, pictogram, power, radiator, save, set, supply, surface, symbol, system, temperature, thermometer, thermostat, thermostatic, valve, ventilation, warm, warmth, water, white,