Ключевые слова: air, aircond, appliance, building, business, conditioner, construction, contractor, coolant, cooling, craftsman, efficiency, effort, electric, engine, engineer, equipment, green, hand, heating, house, hvac, indoors, job, labor, machine, maintenance, manual, mechanic, occupation, person, production, project, repair, repairman, screwdriver, service, servicing, skill, technician, technology, tool, tools, torch, water, work, worker, working,