Ключевые слова: adjusting, background, banknote, battery, budget, cash, central, climate, closeup, cold, comfort, concept, consumption, control, convector, cost, crisis, currency, debt, dollar, economy, electric, energy, expense, family, finance, gas, hand, heater, home, hot, house, increase, investment, money, optimize, pay, price, problem, radiator, regulator, saving, system, tax, technology, temperature, thermal, thermostat, warm, winter,