Ключевые слова: aluminum, appliance, backdrop, background, central, comfort, concept, conceptual, consumption, copyspace, domestic, eco, ecological, energy, engineering, field, friendly, grass, green, heat, heater, heating, home, hot, house, independent, individual, knob, lawn, modern, natural, nature, new, object, plumbing, radiator, sun, sunny, temperature, thermal, thermostat, thermostatic, valve, warm, warming, water, white,