Ключевые слова: alternative, black, calorifer, calorific, cartoon, clean, conservation, convection, design, device, eco, ecological, ecology, economical, economy, energy, environment, environmental, equipment, generation, heat, heater, home, hot, house, icon, industry, innovation, light, line, metal, outline, panel, pipe, power, radiator, roof, solar, station, storage, sun, sunny, system, technology, temperature, thermal, thin, warm, water,