Infratech CD Series 39-Inch 4000/5000 Watt Dual Element Marine Grade Electric Heater

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    We all know the struggle of trying to keep warm outdoors, especially when regular patio heaters are no match for the damaging effects of moisture and corrosive sea air.

    For the best durability in the harshest environments Infratech's CD 39" Dual Element Marine Grade Electric Heater is the best choice. With its revolutionary Marine 316 Stainless Steel Construction, this heater is designed to withstand corrosion in saline environments.

    And let's not forget about its sleek design, featuring cleverly tucked-away mounting brackets that give it a floating look. The optional flush mount frame lets it seamlessly blend into your ceiling.

    Experience the brilliance of infrared heat, where every ounce of energy is put to good use, heating solid objects and not wasting heat on the air. Choose from the powerful 4000 W or 5000 W models, providing ample warmth for areas measuring 8 x 10 ft and 9 x 10 ft, respectively, in mildly cold temperatures. Please note that heaters exceeding 240 V are intended for commercial use only.

    With Dual Element, it delivers twice the power of a Single Element Heater. With the convenient duplex stack switch, you can easily set the heat at high or low levels. And for those who want the ultimate convenience, smart home integration is also available.

    Invest in one of the best electric patio heaters, designed to complement any modern setting; and, outlast any heater. Take advantage of our free shipping offer. Buy now!

    The CD Series 39" Marine Grade Electric Heater is also available in Commercial Grade Stainless Steel.

    Note: Less heat is provided in extremely cold or windy areas. Please see the recommendations below and the Infratech Heat Coverage Guide for setup recommendations.

    Standard Stainless Steel 120V/240V models are usually in stock and ready to ship. Custom 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 and we'll be happy to help!

    Download Product Manual

    Download Specs

    Infratech CD Series Marine Grade Electric Heater Videos:

    Key Features:

    • UL Listed for indoor and outdoor settings, install it anywhere you want.
    • Includes a 6" Mounting Kit with inset brackets for a floating effect. An optional flush mount kit is available for recessed installation.
    • Marine Grade 316 Stainless Steel Construction ensures the best corrosion resistance in locations exposed to corrosive saltwater air.
    • Dual Element Heaters pack 2x more heat than their Single Element Counterparts.
    • Infratech heaters can be used with various control options and are compatible with top-selling Smart Home systems like Lutron,™ Crestron,™ Control 4™, and others for your convenience.

    Other Features:

    • Quartz Element with approximately 5,000 hours of use
    • Mounting Height: 8' to 12' for efficient heat coverage.
    • 0° to 60° Mounting Angle lets you direct heat where you want it.
    • Minimal Maintenance Cost compared to gas, saving you money.
    • Available in 120, 208, and 240 V to meet your needs.
    • Made in the USA, ensures high-quality materials and superior craftsmanship.


    Model Number: CD4024MG / CD5024MG
    Manufacturer: Infratech
    Series: CD
    Indoor/Outdoor: Indoor / Outdoor
    Fuel Type: Electric
    Installation: Wall / Ceiling / Flush Mounted
    Material: 316 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 Controller, Universal Control, or a Home Management System for smart home integration.

    Flush Mount Frames give your unit a seamless mount on the wall or ceiling.

    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.