... 3-4 meters far to heater in big fair hall with cool air conditioner system).3. 20-30% ... energy saving. (for example, your customer can use our 1500W heater instead ... on the wall, roof, profile, column.5. Easy use system design: 360° (horizontal) , up-down 180° (vertical ... 8. Less electrical impulse, safe for electric system and heater working.9 Best Material we using are ...