Ключевые слова: 4k, animation, art, background, central, climate, cold, comfort, contour, control, domestic, element, energy, equipment, heat, heater, heating, home, hot, house, household, icon, illustration, interior, isolated, line, linear, lineart, metal, modern, number, object, outline, pipe, power, radiator, room, symbol, system, technology, temperature, thermal, thermostat, valve, video, wall, warm, warmth, water, winter,