Ключевые слова: account, background, bank, blue, budget, central, cold, concept, consumption, control, convector, copy, design, domestic, economy, efficiency, electric, electricity, energy, finance, financial, heat, heating, investment, modern, money, object, orange, pay, pig, piggy, piggybank, plumbing, radiator, save, saving, season, space, system, technology, temperature, text, thermometer, utility, wall, warm, warmth, white, winter, yellow,