Ключевые слова: adjusting, background, banknote, battery, bill, budget, cash, central, cold, concept, consumption, control, convector, cost, crisis, currency, debt, dollar, economy, efficiency, electricity, energy, expense, expensive, finance, gas, heat, heater, heating, home, hot, house, household, increase, money, pay, payment, power, price, radiator, regulator, save, saving, season, system, technology, temperature, thermostat, warm, winter,