Infratech WD Series 39-Inch 4000/5000 Watt Dual Element Infrared Electric Heater

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    Experience warmth and luxury when you install the Infratech 39" WD Series Patio Heater - a Dual Element Infrared Electric Heater. Perfect for any indoor/outdoor space, it warms an area up to 9' x 10' with 500 Watts of heat. It works well with almost any control option, even with smart home systems while providing an optimal level of comfort!

    WD Series heater is a great choice for pole, wall, or ceiling mounting. It comes with swivel mounting brackets for easy installation. You can also have it recessed to the ceiling with the optional flush mount kit for a very seamless install.

    Available in 208 V, 240 V, 277 V, and 480 V, select the right model for your voltage requirements. To match your room's color palette, choose from 8 powder coat colors — Almond, Beige, Biscuit, Black Bronze, Copper Grey, or White for an additional cost.

    A Dual Element Heater packs twice the power, in the same sleek package, as their Single Element counterpart (W Series). If you are looking for a heater that is barely noticeable, but can provide a lot of heat, Infratech WD series heater is the best choice.

    Take advantage of our free shipping offer and shop now!

    Also available in sizes: 33" and 61" long.

    Note:The heating area may be reduced due to extreme weather conditions and incorrect placement. Please see the recommendations below and the Infratech Heat Coverage Guide for setup recommendations.

    Standard Stainless Steel 240V models are usually in stock and ready to ship. Custom colors and other voltages are special orders with 2-4 Weeks Manufacturing Lead Time.

    Need help determining the right heater and setup for your space and heating needs? Or, do you need more information about the current lead time? Give us a call at 1-866-713-4844 or email us at support@patiofever.com and we'll be happy to help!

    Download Product Manual

    Download Specs

    Download C/CD-Series vs. W/WD-Series

    Infratech WD Series Electric Heater Videos:

    Key Features:

    • UL Listed for indoor and outdoor use and is suited for low clearances, install anywhere you want.
    • Stainless Steel construction ensures durability and corrosion resistance.
    • Match your decor with Custom Powder Coating in Almond, Beige, Biscuit, Black, Bronze, Copper, Grey, and White (costs extra and has a 2 to 3 Week lead time)
    • 6" Stainless Steel Mounting Kit includes swivel brackets for easy installation.
    • Quartz Element with 5,000 Hour Life gives you many years of enhanced comfort.

    Other Features:

    • Optional flush mount kit is available for recessed installation.
    • Mounted 8 to 12 ft at a 0 to 60° angle with multi-position mounting bracket tabs for flexible installation.
    • Minimal Maintenance Cost compared to gas, saving you money.
    • Infratech Heaters can be used with various control options and works with top-selling Smart Home systems like Lutron,™ Crestron,™ Control 4™, and others.
    • Made in the USA, ensures high-quality materials and superior craftsmanship.
    • Heaters greater than 240 Volts are for “Commercial Use Only. Risk of fire. Do not use it as a residential or household heater.” This is for your safety.


    Model Number: WD 40 / WD 50
    Manufacturer: Infratech
    Series: WD
    Indoor/Outdoor: Indoor / Outdoor
    Fuel Type: Electric
    Installation: Pole / Wall / Ceiling / Flush Mounted
    Material: Stainless Steel
    Grade: Commercial / Residential
    Heater Type: Infrared
    Heating Area: 8 ft x 10 ft / 9 ft x 10 ft
    BTUs: 13,648 / 17,060
    Watts: 4,000 / 5,000
    Volts: 208 / 240 / 277 / 480
    Dimensions: 39" L x 8.19" W
    Certifications: UL Listed
    Warranty: 3-Year Warranty

    What's in the Box:

    • Electric Patio Heater - 1 pc.
    • Mounting Bracket - 1 set
    • User's Manual - 1 pc.


    Infratech offers a variety of control options, from duplex stack switches with high/low heat to more advanced controllers with more features. For Sleep Timer, temperature control, and other control options, get an Analog ControllerUniversal Control, or a Home Management System for smart home integration.

    The best angle to install this heater is approximately 45º. If installed outdoors, it is best to install it at the "cold side" for efficient heating and under a protective roof or weather cover, whenever possible. Even with its all-weather construction, your heater will last longer and look better if it is protected from rain and snow.

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  • There are currently no warnings.

    This product is safe to use according to the manufacturer's instructions.