Ключевые слова: amount, appliance, building, consume, consumption, cost, count, counter, crisis, economic, economy, efficiency, efficient, energy, engineering, flow, gas, gasmeter, gasometer, heat, heating, home, house, household, instrument, interior, measure, meter, natural, orange, pipe, plumb, plumbing, power, register, save, saving, simple, structure, system, tap, tubes, usage, use, wall, warm, warmth, water,