Ключевые слова: banknotes, battery, bill, central, cold, control, cost, dollar, domestic, economy, efficiency, electric, electricity, energy, euro, europe, expensive, finance, gas, hand, heat, heater, heating, heating costs, home, hot, house, household, knob, money, nobody, plumbing, power, price, radiator, reduce, regulator, rising, save, saving, season, technology, temperature, thermal, thermostat, valve, warm, warmth, white, winter,