13 outside combustion air supply, 1 length requirements, 2 vertical outside air supply – Roberts Gorden Vantage twin Fire Unitary Infrared Heater TF-250 User Manual

13 outside combustion air supply, 1 length requirements, 2 vertical outside air supply | Roberts Gorden Vantage twin Fire Unitary Infrared Heater TF-250 User Manual | Page 48 / 72