Empire GWT25 66" White B-Vent Wall Furnace 25,000 BTU with Millivolt Control
Empire GWT25 66" White B-Vent Wall Furnace 25,000 BTU with Millivolt Control
SKU: SKU: GWT25WNAT
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Manufacturer's Warranty Included
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The Empire GWT25 66" White B-Vent Wall Furnace 25,000 BTU with Millivolt Control delivers dependable, energy-efficient gas heating in a compact, space-saving design. Proudly made in the USA, this 25,000 BTU/h wall furnace combines proven heating technology with a clean white finish that complements a variety of residential interiors. Designed with a common-size configuration, the Empire GWT25 is an excellent choice for replacing older wall furnaces or upgrading an existing heating system. Available in natural gas and propane configurations, this B-vent gas furnace provides reliable supplemental warmth while helping homeowners manage heating costs compared with conventional electric resistance heating, depending on local energy rates.
Engineered for convenient operation and lasting comfort, the Empire GWT25 B-Vent Wall Furnace features a millivolt control system that supports compatible external operating controls. Separately purchased control options include a manual toggle switch, wall thermostat, wall switch, or compatible remote control, allowing homeowners to customize furnace operation to their preferences. Its advanced heating design promotes efficient fuel utilization, while an optional blower can be added to improve warm air circulation throughout the room. Built-in safety controls provide automatic shutoff for both the pilot and main burners when necessary, helping support dependable operation. The millivolt system also allows the main burner to operate without household electrical power when paired with a compatible millivolt control, although an optional electric blower requires electricity.
Designed for flexible residential installation, the Empire GWT25 25,000 BTU Gas Wall Furnace can be recessed into a compatible wall cavity for a clean, integrated appearance. It can also be mounted flush against the wall using the optional GWTW2W installation accessory, providing additional flexibility for renovation and replacement projects. Its approximately 66-inch-tall design offers effective heating performance without occupying valuable floor space, making it suitable for homes, cabins, and other residential applications. As a B-vent appliance, the GWT25 requires a properly installed venting system to safely exhaust combustion gases outdoors. With American-made construction, millivolt operation, optional blower compatibility, and dependable safety features, the Empire GWT25 offers a practical solution for comfortable and reliable gas heating.
Included
- 66" 25,000 BTU White Millivolt Control, B-Vent Gravity Wall Furnace
- White Header (GWTH2535W)
Optional Accessories
- Thermostat
- Rear Register Kit
- Gas Conversion Kit
- Automatic Blower Kit
- Remote Bulb Thermostat
- Out-of-Wall Installation Kit
Features
- Made in USA
- Common Size retrofits easily
- State-of-the-art technology for better fuel efficiency
- GWT25W furnace recesses into wall or mounts flush with optional GWTW2W
- Total comfort for a fraction of the cost of electric heat
- Optional blower available
Specifications
| Model | GWT25 |
| Cabinet and Front Panels Color | White |
| BTU Input | 25,000 |
| Control Options (Not Included) |
| Works with Manual; Toggle Switch -Thermostat - Wall Switch; or Remote Control | Yes |
| Safety Controls |
| Pilot and Main Burners include Automatic Shut-off | Yes |
| Gas Inlet |
| Fuel Type |
Natural Gas Propane |
| Iron Pipe Size (N.P.T.) | 1/2" |
| Overall Dimensions |
| Width | 16" |
| Depth | 6" |
| Height | 66" |
| Height with Optional Blower Kit | 72" |
| Shipping Weight, lb | 86 lbs |
| Minimum Clearances to Combustibles From |
| Top | 12" |
| Each Side | 4" |
| Bottom of Unit to Floor Covering | 1 1/2" |
Warranty

| Combustion Chamber | 10-Year limited warranty |
| All Other Part Carry | 1-Year limited warranty |
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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When you shop with Ridge Flame, you can buy with confidence knowing you're purchasing from an authorized dealer. Every product is backed by the full manufacturer’s warranty, ensuring genuine products, reliable protection, and long term peace of mind. We never source from unauthorized channels or grey market suppliers. Instead, we provide authentic products, competitive pricing, and dedicated customer support every step of the way, from product selection and ordering to installation guidance and after sales assistance.
Why Buy From Ridge Flame?
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Authorized Dealer
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Free Shipping
All orders ship free within the continental United States, helping you save more on your purchase.
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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
Found a lower advertised price? We'll not only match it, we'll beat it by 10% whenever eligible.
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Expert Customer Support
From product selection to post-purchase assistance, our fireplace specialists are here to help every step of the way.