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Sunpak Patio Heaters

 Commercial-grade infrared gas heat for patios, restaurants and outdoor living spaces. 

Sunpak infrared patio heaters deliver powerful, sun-like radiant warmth that heats people and surfaces directly, not the air around them. Built for natural gas or liquid propane, Sunpak heaters have been a trusted choice for restaurant patios, hotels, outdoor bars and high-end homes for decades, thanks to their rugged construction, clean low-profile design and dependable output.

Our Sunpak selection includes the 25,000 BTU S25 and 34,000 BTU S34 heaters, plus two-stage TSH and TSR models that let you switch between high and low heat. Choose from black or stainless steel finishes, and complete your installation with Sunpak front fascia kits and wireless wall timers.

Not sure what size you need? Our team has helped homeowners, restaurants, and contractors spec the right heater for 25+ years — scroll down for a simple sizing guide, or just reach out.

How Sunpak Infrared Heaters Work

Sunpak heaters use a gas-fired infrared burner to produce radiant heat, the same way the sun warms you on a cool day. Instead of trying to heat the open air, the infrared energy warms the people, tables and floors in its path, so guests feel comfortable quickly and the heat holds up better on breezy nights than traditional mushroom-style heaters.

Sizing Guide: Which Sunpak BTU Do You Need?

  • Sunpak S25 (25,000 BTU) – heats approximately 100 sq. ft. (about 10 ft x 10 ft). Ideal for smaller patios, single tables and lower mounting heights.
  • Sunpak S34 (34,000 BTU) – heats approximately 144 sq. ft. (about 12 ft x 12 ft). Our most popular size for residential patios and restaurant seating.
  • Sunpak S34 TSH / TSR (25,000–34,000 BTU, two-stage) – heats about 12 ft x 12 ft on high and 10 ft x 10 ft on low, so you can adjust output to the weather.

Actual coverage depends on mounting height, tilt angle, wind and outdoor temperature. Larger spaces typically use multiple heaters spaced along the seating area. Our team can help you plan the right layout before you order.

Sunpak Models & Control Options

  • S Series (S25 & S34) – Sunpak's classic single-stage infrared heaters, available in black or stainless steel.
  • TSH Series – Two-stage S34 heaters with a hardwired Sunpak duplex wall switch for simple ON/OFF/HIGH/LOW control.
  • TSR Series – Two-stage S34 heaters with remote control, so you can change heat settings without getting up.

A Note for Contractors & Spec'ers

Sunpak heaters mount to walls or ceilings, with typical horizontal mounting heights of 8 to 9 feet (7 to 8 feet when angled at 30°). Two-stage TSH models use direct spark ignition with automatic re-light and a flame sensor, and include a 24V transformer and duplex switch. All installations should follow the clearances to combustibles in the Sunpak installation manual and local gas codes, and be completed by a licensed gas installer. Spec sheets and manuals are available on each product page, and we offer trade and volume pricing for commercial projects.

Why Choose Sunpak?

  • Commercial-grade heat: Up to 34,000 BTU of radiant infrared warmth from a compact 48-inch heater.
  • Natural gas or propane: Every heater is available in both natural gas and liquid propane versions.
  • Two-stage control: TSH and TSR models switch between 25,000 and 34,000 BTU to match the conditions and save fuel.
  • Built for the outdoors: Weather-resistant enclosures, with 304 stainless steel construction on TSH models, stand up to wind and rain.
  • Certified and American-made: Sunpak heaters are CSA design certified and made in the USA.

25+ Years Warming Outdoor Spaces

Patio Heating Direct has spent over 25 years helping homeowners, restaurants, commercial properties, and luxury home builders choose and install the right patio heater — electric and gas alike. Whether you're heating a backyard dinner table or a full restaurant terrace, we've likely specified something similar before.

How much area does a Sunpak heater cover?

A Sunpak S25 heats about 100 sq. ft. (10 ft x 10 ft) and a Sunpak S34 heats about 144 sq. ft. (12 ft x 12 ft). Two-stage S34 models cover about 12 ft x 12 ft on high and 10 ft x 10 ft on low.

What is the difference between Sunpak TSH and TSR?

Both are two-stage S34 heaters that switch between 25,000 and 34,000 BTU. TSH models are controlled with a hardwired wall switch, while TSR models include a remote control.

Do Sunpak heaters run on natural gas or propane?

Both. Each Sunpak model is available in a natural gas or liquid propane version, so be sure to order the version that matches your gas supply.

How high should a Sunpak heater be mounted?

Typical horizontal mounting height is 8 to 9 feet, or 7 to 8 feet when tilted at 30°. Always follow the clearances in the installation manual and your local codes.

What accessories are available for Sunpak heaters?

We carry Sunpak front fascia kits in black and stainless steel for a clean, finished look, plus the Sunpak wireless wall timer with 30, 60 and 120-minute settings.

Do you offer trade, contractor or volume pricing?

Yes — landscape contractors, electrical contractors, designers, architects and commercial buyers can request trade pricing, spec sheets, and wiring diagrams directly from our team.
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