Ключевые слова: blind, boards, central, convection, dirty, efficiency, enamel, energy, frame, glass, heat, heater, heating, historic, home, indoor, inside, interior, maintenance, metal, metallic, mounted, old, painted, perspective, plumbing, power, radiation, radiator, retro, robust, standing, supply, system, upkeep, vertical, vintage, wall, wallmounted, warm, warmth, water, weathered, white, window, winter,