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STP-TA11-15-BN phantomSchwank STP Series 2-Stage 115,000 btu Patio Garage Heater

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Manufacturer: Schwank Heating Design Comfort
Manufacturer Part No: STP-TA11-15-BN
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STP-TA11-15-BN phantomSchwank STP Series 2-Stage 115,000 btu 17' NG heater c/w EC motors and wireless controls

Featuring unique built-in smart wireless controls, allowing operators to use a mobile device/tablet to connect with Google smart devices or pair with Schwank. ONE control seamlessly.

Available in 2-stage, this fully enclosed wind-resistant model ranges from 35,000 to 115,000 BTUs and comes in 12′ and 17′ lengths; it is easy to install and maintain.
Plus, the ultra-low clearances and a broad range of mounting options provide effortless placement, creating a polished outdoor patio environment without compromising safety or functionality.


  • 35,000 – 115,000 input BTU/HR models
  • 12’and 17′ heater lengths
  • Built with an EC Motor across the complete product line
  • Available in 2-stage
  • Mounting options range from 8′ to 17′ heights
  • Factory-installed turbulators and mounted ignitor
  • Warranty 10-year burner-cup, 10-year tubes, 3-year components
  • UL Certified

Features Elusive Design

  • Phantom black powder-coated finish.
  • Intricate detailing of the grille.
  • Low profile model.
  • Ultra-low clearances with versatile mounting configurations.
  • Fully enclosed unit.
  • Overall captivating design with clean lines, sleek aesthetics, and minimalist shapes.
Energy-Efficient EC Motor
  • High-efficiency EC Motor with advanced whisper-quiet operation is 2-3x more efficient than standard Shaded Pole or PSC motors.

Optimal Serviceability

  • Accessible screwless latch with a swing-down cabinet for easy maintenance access; we have skipped the screws again for this model.
  • Factory pre-assembled modules for easy onsite installation

Built-in Smart Wireless Controls 

  • Easy-to-use control app or web browser.
  • Connects to your WIFI and is compatible with mobile devices/tablet.
  • Functionality to control on/off, high/low, and program weekly schedules (controls designed with the owner/manager in mind).
  • Compatible with smart devices.
  • Flexibility to turn on part or parts of your patio space with the ability to manage “zones”.
  • Pairs with Schwank.ONE control.

Engineered for Performance in outdoor patios

  • Engineered with marine-grade aluminum alloy.
  • Optimized reflector provides a more uniform heat distribution.
  • Wind resistant, fully enclosed model.
  • Factory pre-assembled modules for easy onsite installation.
  • Easily convert the unit in the field from NG to LP.
Built with EC Motor Technology
  • The latest advancement in infrared heating

Intuitive and enhanced operation

  • Provides +85% energy efficiencies throughout a full range of operations, in addition to whisper-quiet operation.
  • An EC Motor is 2x more efficient than a PSC motor (Permanent Split Capacitor) and 3x more efficient than a Shaded Pole AC motor which is commonly used for infrared tube heaters.
  • A constant torque EC Motor leads to more robust and stable combustion through the heaters’ entire range of operation and external pressure changes.
  • Schwank has engineered a customized control board (power input 24VDC) built specifically for the 2-stage phantomSchwank Series.

Intelligent control technology for heating systems

  • Optimized reflector geometry provides increased efficiency over conventional reflectors and maximizes heat distribution throughout the entire radiant area.
  • Providing a more uniform heat distribution across the same heating surface.

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Click to Download Manual

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Customer is responsible to check local codes and ordinances for permitted uses.
Normal Processing lead time to ship parcel orders will ship within 24-48 hours and LTL orders will ship within 2-5 business days.

Shipping in seasons: parcel orders will ship within 48-72 hours and LTL orders will ship within 6-8 business days.

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This item can only be shipped via LTL Freight due to its weight, size, or fragility.

Ships from Georgia Warehouse