Empire Gateway 3500 EPA Certified 28" Freestanding Wood Stove WB35FS (Tax Credit Qualified)
Empire Gateway 3500 EPA Certified 28" Freestanding Wood Stove WB35FS (Tax Credit Qualified)
SKU: SKU: WB35FS
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Manufacturer's Warranty Included
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The Empire Gateway 3500 EPA Certified 28" Freestanding Wood Stove WB35FS is built to provide exceptional heating performance for large homes while combining rugged durability with timeless wood-burning appeal. Featuring advanced non-catalytic combustion technology and EPA 2020 certification, this powerful freestanding stove produces up to 110,000 BTUs and efficiently heats spaces ranging from 1,000 to 2,700 square feet. Its generous 3.5 cubic foot firebox accommodates logs up to 22 inches long and delivers burn times of up to 10 hours, providing long-lasting warmth with fewer reloads. Finished in a durable metallic black coating, the Gateway 3500 offers classic styling that complements both traditional and rustic interiors. As a tax credit qualified model, it also provides additional value for eligible homeowners.
Designed for years of dependable service, the Gateway 3500 features a heavy-duty 5/16-inch steel top that maximizes heat radiation while ensuring outstanding durability. High-density firebricks line the firebox to improve heat retention and distribution, while a premium ceramic baffle promotes efficient combustion and resists deterioration over time. The advanced air wash system continuously directs heated air across the ceramic glass to help keep the viewing window cleaner, allowing you to enjoy a clear view of the fire. A heavy-duty door latch creates a tight seal for efficient operation, and the simple one-lever air control makes it easy to adjust the burn rate for optimal performance and extended burn times.
Built with homeowner convenience in mind, the Empire Gateway 3500 includes a removable ash pan with a fitted cover for clean, hassle-free ash disposal. With optimum efficiency reaching 77%, impressive 10-hour burn times, and clean-burning EPA-certified performance, this wood stove delivers economical, environmentally responsible heating throughout the coldest months of the year. Combining Empire's trusted craftsmanship, durable construction, and outstanding heating capacity, the Gateway 3500 is an ideal choice for homeowners seeking powerful, reliable warmth and lasting value.
Included
- Gateway 2300 Wood Burning Stove
Required Accessories
- Door Overlay
- Pedestal and Leg Sets
Optional Accessories
- Thermodisc Kit Quick Connect
- Variable Speed Blower Kit
- Fresh Air Kit
- Fire Screen
- Step Top
Features
- DIFFEENT SIZES: Available in 24", 26" and 28".
- AIR WASH SYSTEM: Hot air circulates through the stove and keeps dirt and debris from building up on the glass, maintaining clear view of the fire.
- DOOR LATCH: The heavy duty door latch ensures your door seals tight every time for an efficient burn.
- NO MESS ASH PAN: The easy to remove ash pan includes a cover to keep dirt and debris contained, allowing easy, mess-free disposal.
- SIMPLE CONTROL: Easy to use one-lever control adjusts the burn rate to optimize burn times.
- DURABLE STEEL: 5/16" thick steel top allows for extended heat radiation and adds lasting durability.
- HIGH HEAT BAFFLE: The high heat ceramic baffle is made of high quality ceramic that won’t deteriorate.
- CERAMIC GLASS: High temperature ceramic glass stands up to the changing temperatures inside the firebox.
- FIREBRICK LINED: High-density firebricks line the interior of the firebox, allowing for closer clearances and more heat distribution into the room.
Specifications
| Model | Gateway 3500 |
| Color | Metallic Black |
| Combustion Technology | Non-Catalytic |
| Fuel Type | Dry Cordwood |
| EPA Certification | EPA 2020 Certified |
| Firebox Size | 3.5 cu. ft. |
| Heating Area | 1,000 to 2,700 sq. ft. |
| BTU Ratings (AWEIS) | 110,000 |
| Average overall efficiency - HHV | 71 % |
| Average overall efficiency - LHV | 76 % |
| Optimum efficiency | 77 % |
| Burn Time | 10 Hour |
| Diameter Flue | 6-inch |
| Maximum Log Length | 22-inch |
| Mounting Location | Freestanding |
| Decorative Style | Classic/Traditional |
Dimensions
| Width | 28" |
| Height | 34" |
| Depth | 25" |
Warranty

- LIMITED LIFETIME: Combustion chamber (welds only) and cast iron door frame, Ceramic Glass, Plating (manufacture defect), step top.
- LIMITED 7 YEAR: Surrounds, heat shields, ash drawer, pedestal, C-Cast Baffle, secondary air tubes, deflectors and supports.
- LIMITED 5 YEAR: Handle assembly, glass retainers, air control mechanism, removable carbon steel combustion chamber components.
- LIMITED 2 YEAR: Standard and optional blower, heat sensors, switches, rheostat, wiring and electronics.
- LIMITED 1 YEAR: Paint peeling, gaskets, insulation, ceramic fiber blankets, firebricks and other options.
- LIMITED 90 DAY: All parts replaced under warranty.
Tax Credit Information
This Wood Stove is Eligible for the 26% Tax Credit Program
?75% HHV Efficiency
- The 26% tax credit is valid from January 1, 2021 through December 31, 2022. In 2023, the tax credit will remain in effect for the entire year, but the percentage steps down to a 22% tax credit.
- Customers will claim their tax credit when they file their taxes on IRS form 5695 under “Residential Energy Efficient Property Credit “. They will need their purchase receipt (showing the cost of product and installation).
- Customers will also need the manufacturer certificate stating that the stove qualifies for the credit and is at least 75 percent efficient HHV.
- The credit applies to qualifying wood and pellet stoves and, unfortunately, not to the gas stoves.
- People who have zero tax liability may not qualify for the tax credit. It's recommended to consult a qualified tax professional to determine if the customer is eligible to take advantage of this tax credit.
About The Manufacturer

Founded in 1932, Empire Comfort Systems is a trusted American manufacturer of high-quality heating products known for their reliability, efficiency, and innovation. Family-owned and proudly made in the USA, Empire produces a wide range of fireplaces, gas log sets, room heaters, wall furnaces, and zone heating solutions designed to deliver dependable comfort and long-term value. Renowned for pioneering safety features such as Oxygen Depletion Sensor (ODS) technology and for developing highly efficient heating systems, Empire continues to be a leading choice for homeowners seeking durable, energy-efficient, and easy-to-operate heating products.
Our Shipping Policy
Order Processing Time
Orders are typically processed within 1–2 business days (Monday–Friday, excluding holidays).
Orders placed after 5:00 PM EST will begin processing on the next business day.
Once your order is processed and prepared for shipment, you will receive a shipping confirmation email with tracking information.
Please note that certain products, including oversized, custom-made, special-order, or high-demand items, may require additional handling or production time. If your order is expected to ship later than the advertised timeframe, our customer service team will contact you via email or phone.
Shipping Rates & Delivery Estimates
We offer Free Standard Shipping on all orders within the contiguous United States.
Estimated delivery timelines:
- Standard products: typically delivered within 2–5 business days after shipment
- Total estimated delivery time: approximately 3–7 business days from the order date
Delivery times are estimates only and may vary due to carrier delays, weather conditions, product availability, holidays, or other unforeseen circumstances.
While we strive to meet all estimated delivery timelines, delays may occasionally occur due to weather, carrier issues, holidays, manufacturer backorders, or other unforeseen circumstances.
Shipping Destinations
We currently ship to customers within the United States.
Free shipping applies to the contiguous United States only (Lower 48 states and Washington D.C.).
For shipments to:
- Alaska
- Hawaii
- U.S. Territories
please contact us before placing your order for a shipping quote and estimated transit time.
We do not currently offer international shipping.
Freight & Oversized Deliveries
Certain large or heavy items such as fireplaces, fire pits, mantels, and outdoor heating products are shipped via freight carriers.
Freight deliveries may include:
- Curbside delivery service
- Delivery appointment scheduling
- Signature requirement upon delivery
An adult must be available to receive and inspect freight shipments at the time of delivery.
Additional delivery services such as liftgate service or inside delivery may be available upon request depending on the carrier and delivery location.
Shipment Inspection & Damages
Please inspect all shipments carefully upon delivery.
If your shipment arrives visibly damaged:
- Note the damage with the carrier before signing the delivery receipt
- Take photos of the product and packaging
- Contact us immediately at sales@ridgeflame.com
If concealed damage is discovered after delivery, please notify us within 48 hours of receiving the shipment and provide photos of the packaging and damaged item.
Please retain all original packaging materials until the claim is resolved.
We will work directly with the carrier and manufacturer to help resolve shipping damage claims and provide an appropriate solution whenever possible.
Shipment Confirmation & Tracking
Once your order ships, you will receive a shipment confirmation email containing tracking information.
Tracking numbers may take 24–48 hours to become active after shipment.
If you have not received tracking information within several business days after your order ships, please contact our support team.
Incorrect Shipping Information
Customers are responsible for providing accurate shipping information at checkout.
If an incorrect or incomplete shipping address is provided, delivery delays, additional carrier fees, or returned shipments may occur.
Please contact us immediately if you notice an error in your shipping address after placing your order.
Order Cancellations
Orders may be canceled without penalty before shipment processing begins or before a shipping label or Bill of Lading has been created.
Custom-made, made-to-order, or special-order products cannot be canceled once production or processing has started.
If you need assistance with an order cancellation request, please contact us as soon as possible.
Returns & Refunds
Eligible non-custom items may generally be returned within 30 days of delivery unless otherwise stated on the product page.
Returned items must:
- Be unused and in original condition
- Include original packaging and accessories
- Be returned in resellable condition
Return shipping costs and applicable restocking fees may apply.
Custom-made, made-to-order, clearance, or final-sale items may not be eligible for return.
Please review our Return & Refund Policy for complete details before initiating a return.
Shipping Carriers
We partner with trusted shipping providers including:
- FedEx
- UPS
- USPS
- Certified Freight Carriers
Carrier selection may vary depending on the product size, destination, and shipping method.
110% Best Price Guarantee
At our store, we are committed to offering exceptional value and competitive pricing on every product we sell. If you find the same item available at a lower price from another authorized online retailer, we'll not only match it, we'll beat it by 10% of the price difference.
To request a price match, simply send us a link to the product on our website along with a link to the competitor's listing. Our team will review your request and, in most cases, respond within one business day.
Eligibility Requirements
To qualify for our 110% Best Price Guarantee:
- The product must be identical in brand, model, size, and specifications.
- The item must be currently in stock and available for purchase from both retailers.
- The competitor must be an authorized online retailer of the product.
- The comparison price must include applicable shipping charges. Sales tax is excluded from price match calculations.
- The competitor's advertised price must comply with the manufacturer's pricing policies.
Exclusions
The following are not eligible for price matching:
- Promotional offers, rebates, coupons, or buy-one-get-one-free deals
- Auction, marketplace, liquidation, or discount websites (including eBay, Overstock, Amazon marketplace sellers, etc.)
- Retail stores with in-store-only pricing
- Pricing errors, clearance sales, or special limited-time offers
- Brands or manufacturers excluded from our Best Price Guarantee program
If you have any questions regarding eligibility or excluded brands, please contact us. We are always happy to help.
Please inform us of any damage or missing parts within 48 hours of receiving your delivery. Include clear photos of the damage and keep the original boxes and all protective packaging materials.
For the smoothest experience, we strongly recommend inspecting your shipment while the delivery driver is present. If you discover damaged items, refuse the delivery or note the damage on the delivery receipt.
If you cannot inspect the items with the driver present but notice damage to the boxes, please note this on the delivery receipt and inspect your items as soon as possible.
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Why Buy From Ridge Flame?
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Authorized Dealer
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Easy Returns
Need to return the merchandise? We accept returns for 30 days from the date of delivery.
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110% Best Price Guarantee
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Expert Customer Support
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