Infratech 21-2100 39" Stainless Steel WD-Series Dual Element Infrared Heater 4000W 240V 16.7A: Now you can add a heating system to your patio, terrace or outdoor dining area that reflects the same eco-conscious, forward-thinking ethos as the rest of your property. Infratech infrared heaters are 90% energy efficient, operate for just pennies per hour, and emit a subtle, pleasing glow that will not blow away in windy conditions. They provide odorless, radiant warmth for your space that won’t detract from the aroma of steaks on the grill, or interfere with the view – whether it’s of city lights or starlight. Linger longer outdoors all year round, and get more enjoyment out of your patio, terrace, pergola, poolside deck, balcony, outdoor kitchen or dining space.