Schwank 48" SupremeSchwank Outdoor Two Stage Gas Patio Heater

Estimated Arrival: Between and . (To All Contiguous States)

✔ Same-Day Order Processing
✔ Free Returns
✔ No Restocking Fees
✔ Financing Options Available

Text or call 888-992-1556, start live chat, or email with any questions. Our team is available to serve you 8:00 AM - 11:59 PM ET, 7 days a week.

SupremeSchwank Two Stage heater is a sleek and durable infrared gas patio heater with an attractive black finish. Fueled by natural gas, with high and low heat settings, it is a highly efficient heating solution. This heater is made of marine grade stainless steel and is available in black and stainless steel.

SupremeSchwank heaters allow you the freedom of mounting your heater the way you want. With a variety of mounting options, this heater is great for any patio setting. Choose a mounting option based on how you want your heaters to be installed. Great for indoor and outdoor commercial use. For residences, it is best to install this gas heater outdoors.

This natural gas heater has two heat settings which can be controlled using the two stage control switch required to operate the heater. Flip one switch for low setting, 36,500 BTU and both switches for high, 50,000 BTU. The switch is purchased separately with the transformer. 

*Note: "Mounting angles and distances are suggested to ensure comfort and are subject to site and design conditions. Install multiple heaters to keep large outdoor areas warm."

Available in another model SupremeSchwank Outdoor Single Stage Gas Patio Heater.


  • Commercial  Patios
  • Restaurants
  • Terraces
  • Outdoor Spaces
  • Entertainment Venues
  • Residential Spaces


  • Natural Gas heater, no need to keep changing tanks making the patio more efficient on your gas bill and safer for customers.
  • Black or Stainless Steel enclosure made of 316 Marine Grade Stainless Steel.
  • Pole, Wall or Ceiling Mounting to fit any patio setting. Optional mounting kits available.
  • Overhead mounting leaves more space for seating and keeps aisles clear.
  • High-Intensity Ceramic Infrared Burner System
  • Commercial-grade heating power with two heat settings, 36,500 BTU (Low) and 50,000 BTU (High).
  • Perfect for 8' to 10' mounting height for efficient heat coverage.
  • 0 to 30° Mounting Angle for installation flexibility.
  • High and low heat setting, requires two stage control switch. Required switch is purchased separately.
  • 24V transformer not included, sold separately with switch.
  • UL listed
  • CSA Approved
  • Made in the USA


Installation: Pole / Wall / Ceiling Mounted

Marine / Commercial / Residential
Ignition: Electronic Ignition
Heater Type: Ceramic
Heating Area:

92 sq. ft.
BTUs: 36,500 / 50,000
Volts: 24
Amps: 40VA
Dimensions: 48 1/4" L x 10" H x 13" W
Weight: 49 lbs
    • The Schwank warrants the burner and mantle for a period of three years (3 years).
    • Schwank supply any component part of the heater, excluding any labor, which the Schwank's examination determines to be defective in workmanship or material for a period of one year (1 year) from the date of installation, unless otherwise specified below.


    Click to see Flexible Gas Connector

    Black Finish Stainless Steel Flexible 3/8" x 24" (1/2"M x 1/2" M)

    Stainless Steel Flexible 1/2" x 24" (F.F.)


    Click to see Zone Transformers 24VAC
    Schwank Zone Transformers are used together with control options for bistroSchwank or supremeSchwank heaters. This transformer powers wireless receivers and the central control panel that are used to control your heaters. 40, 100, 150, 200, 250, and 350 VA transformers are available.


    Click to see Two Stage Control Illuminated Switch Gang


    Single Switch Gang:

    • 1 Zone of 1 To 4 Heaters

    Double Switch Gang:

    • 2 Zones: 2 To 8 Heaters

    Triple Switch Gang:

    • 3 Zones: 3 To 12 Heaters

    Mounting Options Kits:

    Click to see Wall Mount Brackets 
    • Wall Mount Bracket for bistroSchwank gas patio heaters
    • Available in black painted steel and stainless steel 
    • Provides combustible clearance from wall surface
    • 11″ x 7″ minimum mounting surface footprint
    • Made in USA

    *Note: "An optional wall mount arm kit can extend your bracket 30" from the mounting surface."

    Click to see Wall Mount Arm Kit (*Require the Wall Mount Brackets)
    • Wall Mount Arm Kit for bistroSchwank and supremeSchwank heaters 
    • Available in black painted steel and stainless steel
    • Extends the bracket 30" from the surface
    • Provides combustible clearance from wall surface 
    • Made in USA


    Click to see 4" Pole Mount Assembly

    Schwank 4" Pole Mount Assembly allows your bistroSchwank and supremeSchwank heaters to be mounted on a pole. There are different mounting options available to make sure that your heaters fit in your patio setting. Available in Black painted steel and stainless steel. 

    This pole mounting option is ideal for patios that cannot have a heater wall or ceiling mounted. Choose a mounting option based on your heater model and what's best for your patio setting.


    Click to see Ceiling Mount Kit

    Schwank Ceiling Mount Kit allows your bistroSchwank and supremeSchwank heaters to be mounted overhead. There are different mounting options available to make sure that your heaters fit in your patio setup. Available in stainless steel.

    This ceiling mounting option is ideal for large areas where wall mounting is not enough to heat the entire area. The kit includes two stainless steel brackets and hardware to complete the installation.