Type:FurnitureType:HeaterStandard FeaturesInshot burner designDirect Spark IgnitionIndividually adjustable and removable louvers20-gauge steel jacket with baked enamel fi nish.120/1/60 supply voltageEasy access control panelPower ventedSingle stage combination gas valve120/24 volt control transformer115/1/60 volt fan motor with internal overload protectionRight hand control accessSterling 175,000 BTU 81% Tublular Gas-Fired Unit Heater - TF175The Sterling Model "TF" gas-fi red unit heaters offer a highly efficient, extremely durable alternative to the traditional clam shell design. These propeller type units combine the latest tubular heat exchanger and in shot burner technology with the quality and reliability you have come to know from Sterling. Model "TF" units are certified by ETL for use in commercial and industrial applications. Sizes are available in 150 to 400 MBH.High EfficiencyStandard energy saving features like the direct spark ignition and power venting reduces standby losses and offers improved seasonal effi ciencies. "TF" models are certifi ed by ETL as providing over 80% thermal (combustion) efficiency.Tubular Heat ExchangerThe Sterling tubular heat exchanger has been designed to provide maximum and uniform heat transfer. The low pressure drop associated with this design enables heated air to be evenly distributed to the conditioned space. This curved, non-welded serpentine design experiences less thermally induced stress making it highly durable for significantly longer service life. All Sterling tubular heat exchangers are constructed of heavy duty 20-gauge aluminized steel. Optional 409 stainless steel is available.Direct Spark Ignition SystemSterling Model "TF" units utilize a direct spark pilotless ignition of the burner, providing fast heat delivery. This highly reliable and efficient ignition system incorporates an integrated electronic control board to regulate the system sequence of operation, including an onboard LED indicator for simple troubleshooting.VentingSterling Model "TF" unit heaters are ETL certified in accordance with categories I and III venting requirements. This certification allows units to be vented both vertically and horizontally using either single wall or double wall venting materials. This venting flexibility makes installation easier and more cost effective by allowing the installer to utilize existing venting components.Control AccessibilityDesigned with the service person in mind, every component of the Sterling gas-fi red unit heater is easily accessible. Ignition and fan controls are located in one centrally located control panel. The removable access door provides control isolation as well as a pleasing exterior appearance.Standard FeaturesInshot burner designDirect Spark IgnitionIndividually adjustable and removable louvers20-gauge steel jacket with baked enamel fi nish.120/1/60 supply voltageEasy access control panelPower ventedSingle stage combination gas valve120/24 volt control transformer115/1/60 volt fan motor with internal overload protectionRight hand control accessCash only please.Need to sell it since I moved to Ecador.