
2-Person Home Sauna with Infrared & Traditional Heat 48"W x 48"D x 78"H
The Trinity Combination Sauna is the only sauna available that combines ’s UL listed Spectrum Plus infrared heaters combined with a Harvia Vega 120V traditional heater, plus true medical grade red light therapy.
Eco-Friendly and Efficient Design:
No need to compromise. ’s FD-4 Trinity is the only combination sauna with true UL listed infrared heaters together with a traditional sauna heater. Furthermore, the IR panels, red light therapy, and the Harvia Vega heater are all powered by standard 120V and can be plugged into a common outlet, so no electrician is needed. Get all the benefits of infrared combined with traditional rocks with steam.
Contemporary Amenities for an Enhanced Experience:
"Get hot fast! The only IR heaters that have passed the rigorous tests from Underwriter Laboratories used in tandem with a traditional steam sauna stove. Short wave far-infrared penetrates muscles, joints, and makes you sweat 25 times more than carbon panel heaters. The Harvia Vega traditional 1.9kW sauna heater lets you splash some water onto the rocks for a luxurious steam sauna experience. Reap the benefits and the intensity only offered by a steam sauna."
Red light therapy is a type of phototherapy that uses low-level light wavelengths to penetrate the skin and stimulate the production of collagen and other proteins, which can lead to numerous potential health benefits. It’s a perfect enhancement to your sauna wellness ritual.
Features
- Spectrum Plus™ UL Listed short wave infrared heaters for deep penetrating heat, up to 25x more than standard carbon panel heaters.
- Spectrum Red Light™ Therapy. 192 Diode medical grade LED panel capable of producing highly beneficial 650nm of red light therapy combined with chromotherapy for those days you need a little love.
- Antimicrobial Western Canadian cedar interior that protects against mold, bacteria, and fungus.
- Thermal Plus™ Aspen exterior that will never rot, warp, decay, or chip. Making FinnMark Design's full spectrum infrared saunas one of the healthiest and longest lasting saunas on the market.
- 3-IN-ONE Combination. Compromise no more. Introducing the only combination sauna with true UL listed infrared heaters combined with a traditional heater that produces high heat steam. Get all the benefits of infrared combined with traditional rocks with steam all while soaking in the benefits of a medical grade Red light therapy LED panel.
- Built-in LCD touchscreen controller with Bluetooth audio.
- Audio with 6" HiFi marine grade speakers, 8mm tempered glass for the ultimate thermal retention.
- Extra large two-tier bench system
- Low EMF sauna tested by a NASA award winning testing facility.
- High Emissivity infrared heaters
Harvia Vega Compact 1900:
- Wall-mounted design
- Stainless Steel construction
- 1.9kW
- For sauna rooms from 70 to 106 cu. ft.
- Requires a minimum of 29 lbs of sauna stones (1 Box-AC3000)
- Please note that each natural stone is unique in shape and size. We recommend purchasing an additional box of sauna stones to allow you to choose the highest quality of stone for fit, form, and function (Additional freight charges will apply).
- Built-in controls
- Ergonomic operating switches
- Switches can be installed on the right or left side of the heater
- Designed, engineered, and made in Finland
- Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm)
- 2-Year Warranty (Consumer use)
- Manufacturer's Note: Sauna heater stones are significant to the unit's safety. In order for the warranty to remain valid, the user is responsible for proper maintenance.
Package Contents
- Bottom Panel
- Top Panel
- Back Panel
- Front Panel
- Left Panel
- Right Panel
- Glass Door
- Bench Support
- Bench Top
- Heater Cable
- Floor Cable
- Screws
- Power Supply Unit
- Power Cable
- Interior Heater Connections with Wood Cover
- Door Handle (2 Screws)
- Removable and adjustable sauna feet for uneven surfaces
- Infrared Sauna Heater Panels
- Spectrum LED near infrared ceiling lights combined with medical grade Spectrum Red Light therapy.
- Controller 2.0, built-in LCD touchscreen control panel with Bluetooth audio
- Audio upgrade with 6" HiFi speakers
- 8mm tempered glass for the ultimate thermal retention
- ETL Certification
- Limited Warranty
Specifications
| Model | FD-4 |
|---|---|
| External Materials | Thermo-Aspen |
| Interior Materials | Western Red Cedar |
| Volts | 120 |
| IR Watts | 1750 |
| Amperage | 15/20 |
| Plug Type | NEMA 5-15P |
| Outlet | Standard 120v 20a |
| Maximum Temperature | IR 170F - Traditional 190F |
| Interior Dimensions | 44"W x 45'D x 75"H |
| Exterior Dimensions | 48"W x 48"D x 83"H |
| Room Volume | 86 cu. ft. |
| Door Dimensions | 23.625"W x 68.875"H |
| Door Handle Dimensions | 1.5"W x 13.25"H |
| Glass Thickness | 8mm W/Gasket |
| Product Weight | 437 lbs |
| Shipping Dimensions | 36"W x 80"D |
| Shipping Weight | 485 lbs W/48 lb Pallet |
Resources
Last Updated: December 13, 2025
At ValiroWood, we aim to provide transparent and reliable shipping details so our customers know what to expect. Below, you’ll find information on order processing, delivery timeframes, and key conditions that can affect shipping.
1. Shipping Areas
We currently ship only within the United States. We do not ship internationally, to U.S. territories, APO/FPO addresses, or PO Boxes that are not serviced by carriers.
2. Shipping Costs
All U.S. orders include free standard shipping. There are no extra handling fees or hidden charges beyond the price displayed at checkout.
3. Order Processing
Before shipping, each order goes through verification, inventory check, and careful packaging. Standard processing time is:
- 1–3 business days for most orders
Orders placed after 6:00 PM EST or during weekends and holidays will start processing the next business day. Processing time is separate from shipping transit time.
4. Delivery Timeframes
Once your order is processed and handed to the carrier, estimated shipping times are:
- Standard U.S. Delivery: 7–10 business days from order placement (processing + transit)
Delivery times depend on factors such as:
- Distance from our fulfillment center
- Carrier workload and routing
- Weather events or natural disruptions
- Local delivery conditions
5. Tracking Your Order
You will receive a tracking number via email once your package is shipped. Tracking updates may take 24–48 hours to appear after the carrier activates the shipment.
6. Address Accuracy
Please double-check your shipping address before placing your order, including apartment or unit numbers. Delays or failed deliveries may occur due to:
- Incomplete or incorrect addresses
- Missing apartment or suite numbers
- Customer relocation after placing the order
If a package is returned due to address issues, we will contact you to arrange reshipping.
7. Delivery Delays
While most packages arrive within the estimated timeframe, delays can occur due to:
- Severe weather
- Carrier transportation or operational delays
- High order volume during holidays or peak periods
- Carrier distribution center backlogs
If your order experiences a delay, please contact us so we can assist with the carrier and provide updates.
8. Packages Marked as Delivered
If your carrier marks your package as delivered but you cannot find it, please:
- Check your property, mailbox, and designated drop-off areas
- Ask neighbors or building management (if applicable)
- Wait up to 24 hours, as carriers sometimes mark packages early
- Contact the carrier directly for confirmation
Once a package is delivered to the provided address, ValiroWood cannot be responsible for theft or loss. However, we will assist with a carrier investigation whenever possible.
9. Contact Us
If you have any shipping questions or need help, contact our support team:
Email: Support@valirowood.com
Phone: (833) 574-6387
Typical Response Time: Within one business day.
Last Updated: December 13, 2025
At ValiroWood, we want you to feel confident in your purchase. If you change your mind or experience an issue with your order, our return and refund policy is designed to be clear, fair, and transparent.
Summary of Return Costs
- Our error (damaged, defective, or incorrect item): We cover return shipping and issue a full refund or replacement.
- Change of mind / buyer’s remorse: You are responsible for return shipping costs. A refund will be issued once the item is received and approved.
1. Eligibility for Returns
Items may be returned unless clearly marked as “non-returnable” on the product page. To be eligible for a return:
- The return request must be submitted within 30 days of delivery.
- Items must be unused, uninstalled, and in original condition.
- All original packaging, accessories, manuals, and components must be included.
- Proof of purchase (order confirmation or receipt) is required.
2. How to Start a Return
- Contact us: Email Support@valirowood.com or call (833) 574-6387 with your order number, item(s), and reason for return.
- Receive return instructions: We will provide a return authorization (RMA) number and return address. Please do not send items without receiving approval.
- Pack your item: Securely package the item using the original packaging and clearly mark the RMA number on the box.
- Ship your return: Use a trackable shipping method. We will notify you once your return is received and inspected.
3. Refunds
- Inspection & approval: Returns are inspected upon arrival. Approved refunds are processed within 10 business days.
- Refund method: Refunds are issued to the original payment method used at checkout.
- Shipping fees: Original shipping fees (if any) are non-refundable unless the return is due to our error.
Where is my refund? If you do not see your refund after processing, please check with your bank or card issuer, as posting times may vary.
4. Exchanges
We do not offer automatic exchanges. If you need a different item, please return your original order for a refund and place a new order. For assistance, contact our support team.
5. Non-Returnable Items
Certain items cannot be returned due to safety, hygiene, or customization reasons, including:
- Items that have been used, installed, or modified.
- Custom-made or personalized products.
- Items clearly marked as “non-returnable” on the product page.
6. Damaged or Defective Items
If your order arrives damaged, defective, or incorrect, please contact us within 48 hours of delivery with photos and a description of the issue. We will provide a prepaid return label and offer a replacement or full refund.
7. Responsibility & Disclaimer
Customers are responsible for returned items until they are received by us. We recommend using a trackable shipping method. Refunds may be denied for items showing signs of use, damage, or missing components not caused by us. This policy does not affect your statutory consumer rights.
8. Contact Us
For return-related questions, please contact our support team:
Email: Support@valirowood.com
Phone: (833) 574-6387
We aim to respond within 24 business hours.