Sterling tf150a1ns111 Unit Heater 150000 Btu/h Natural Gas

Product Description

The STERLING tf150a1ns111 is a 150,000 BTU/h natural gas unit heater designed for single-stage heating in commercial and industrial spaces. It operates on 115-volt single-phase, 60 Hz power and delivers 82 percent thermal efficiency through an in-shot burner configuration with direct spark ignition (DSI). A power vent system handles flue gas exhaust, making placement more flexible than gravity-vent alternatives. At 195 pounds, this is a substantial suspended or wall-mounted unit intended for installation by licensed HVAC professionals in warehouses, garages, loading docks, and similar high-volume spaces.

This unit heater is suited for commercial and light-industrial heating applications where a high-output gas-fired suspended heater is required. The single-stage heat output provides straightforward on/off operation appropriate for spaces that do not require modulating heat control. The open drip-proof (ODP) motor construction suits indoor environments where occasional moisture exposure is possible but direct water contact is not expected. The 10-year heat exchanger warranty provides long-term coverage on the core thermal component.

Key Features

• 150,000 BTU/h natural gas input for high-capacity space heating
• 82 percent thermal efficiency with in-shot burner design
• Direct spark ignition (DSI) for reliable, pilot-free startup
• Power vent exhaust for flexible installation positioning
• Single-stage operation on 115-volt, single-phase, 60 Hz power
• 10-year heat exchanger warranty
• Open drip-proof (ODP) motor construction

Compatibility

Designed as an OEM unit heater for commercial and industrial gas heating applications requiring a 150,000 BTU/h single-stage natural gas suspended heater with power vent exhaust.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the manufacturer instructions. Shut off and lock out electrical power and close the gas supply valve before servicing or mounting. Power vent units require proper venting pipe sizing and termination per the installation manual to prevent flue gas recirculation. At 195 pounds, two-person rigging and appropriate structural support are required for safe suspended mounting.

Technical Specifications

• Heating Capacity: 150,000 BTU/h (150 MBH)
• Fuel Type: Natural Gas
• Ignition: Direct Spark Ignition (DSI)
• Burner Type: In-Shot
• Venting: Power Vent
• Efficiency: 82 percent
• Voltage: 115 volts, Single Phase, 60 Hz
• Motor Type: Open Drip-Proof (ODP)
• Heat Exchanger Warranty: 10 years
• Unit Weight: 195 pounds

Standard Information

• Brand: STERLING
• Manufacturer Part Number: tf150a1ns111