The Infratech CD-Series Marine Grade 4,000W Electric Patio Heater is built for environments where corrosion resistance is critical. Featuring a Marine Grade stainless steel housing rated for salt air, coastal exposure, and high-humidity installations, this dual element heater delivers the same silent infrared warmth as the standard CD-Series — engineered to last in the harshest outdoor conditions.

This 4,000W model covers 80 sq. ft. with no noise, no emissions, and instant-on performance. Ideal for coastal homes, poolside patios, marinas, and commercial outdoor spaces. Available voltages: 240V/208V/277V/480V.

Please Note: This heater must be hard-wired by a licensed electrician to a dedicated circuit. It is not a plug-in unit and must be professionally installed for proper performance and safety.

Key Features

• Marine Grade Stainless Steel Housing – Engineered for coastal and high-humidity environments with superior corrosion resistance.

• High-Output Dual Element – 4,000W of focused infrared heat covering 80 sq. ft..

• Recessed Mounting Capable – Includes inset mounting brackets for a flush, floating ceiling installation.

• Silent, Emission-Free Operation – No gas, no odor, no noise — just clean radiant warmth.

• Indoor/Outdoor Rated – UL listed for safe use in both residential and commercial settings.

• Eco-Friendly Operation – More than 90% energy efficiency with zero emissions and silent performance.

• Extended Element Life – Quartz elements rated for approximately 5,000 hours of operation.

• Made in the USA – Backed by a 3-year manufacturer's warranty.

Specifications & Dimensions

Whats Included?

What's Included:

• (1) Infratech CD-Series 4,000W Marine Grade Electric Patio Heater

• (1) Set of adjustable mounting brackets

Additional Optional Accessories:

• Browse Infratech Accessories

Warranty

Infratech provides a 3-year limited warranty on this electric heater, ensuring it is free from defects in materials and workmanship from the original date of purchase.

For complete terms and conditions, please consult the manufacturer's warranty manual.

Shipping & Returns

Shipping Policy

• Free Shipping on All Orders – We provide free standard delivery on all orders within the contiguous U.S.

• Ground Shipping for Smaller Items – Accessories and lighter products ship via standard ground carriers such as FedEx, UPS, or similar.

• Freight Delivery – Large items (HVAC/Heaters) ship via LTL freight. Drivers deliver to the curbside only; they cannot bring items into your home or garage.

• Tracking Information – Tracking is typically provided within 1 business day once your order ships.

• Carrier Updates – Once tracking is issued, allow 1–2 business days for the carrier to populate shipment details.

• More Information – Full details can be found on our Shipping Policy page.

Return Policy

• 30-Day Return Window – Return requests must be submitted within 30 days of delivery; requests after this period cannot be accepted.

• Inspect Upon Delivery – Visible damage must be noted on the driver's paperwork. Report all damage within 24 hours to qualify for a replacement.

• Return Condition Requirements – Items must be unused, uninstalled, and in original packaging, including all boxes, crates, or pallets.

• Restocking Fees – Restocking fees of 25–35% apply to most brands; see full policy for details.

• Non-Returnable Items – Accessories, small components, and custom-finish items are non-returnable.

• Full Details – See our Return & Refund Policy page for complete guidelines.