Sunpak® heaters are simple to operate and use draft free and highly energy efficient infrared radiant energy just like the sun’s warming rays. Installed in many commercial locations such as restaurant patios, resorts, entertainment venues, outdoor patios, and hotels Sunpak® continues to be the #1 choice for many commercial establishments. 25,000 BTU and 34,000 BTU models available and come in a high temp black powder coated finish or 304-grade stainless steel. Our new Sunpak® S34 B TSH and S34 S TSH add a unique two-stage 25,000 to 34,000 BTU adjustable output feature. This model gives the ability to adjust heat settings with a Sunpak® Duplex Switch to "ON / OFF / HIGH / LOW.