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We stand behind the quality and craftsmanship of this sauna. That’s why it comes with a 10-Year warranty.
We streamlined the assembly process with our modular system and tongue and groove design.
This hybrid sauna offers the best of both worlds, reaching a max infrared heat of 170°F and traditional heat up to 190°F.
The Trinity Hybrid Sauna is the only sauna available that combines Finnmark’s UL listed Spectrum Plus infrared heaters combined with a traditional 120V sauna heater, plus true medical grade Spectrum Red Light™ Therapy.
No need to compromise. Finnmark’s FD-4 Trinity is the only combination sauna with true UL listed infrared heaters together with a traditional sauna heater. 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 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.
Traditional Sauna Heater Included
Includes
- 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)
- Infrared Sauna Heater Panels
- Harvia Vega Compact 1900 Sauna Heater
- 1 Box of the Harvia AC3000 0-10cm sauna stones (29 lbs)
- Medical Grade LED Red light therapy with 650nm plus color chromotherapy
- V2 LCD Controller 5" Touchscreen with Bluetooth
- ETL Certification
- Warranty
- Easy clasp together assembly - 30 minutes, no tools required
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 direct (hardwired) connection. Consult a certified electrician
- For sauna rooms from 70 to 106 cu. ft.
- Sauna stones included
- Built-in controls
- Designed, engineered, and made in Finland
- Dimensions: 11"W (279mm) x 11"D (279mm) x 21" (533mm)
- 2-Year Warranty (Consumer use)
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 15a |
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 |
Product Manual
Fast & Free Shipping Nationwide
We offer free shipping on all orders within the continental U.S. through our network of warehouses in California, Illinois, Virginia, and beyond. Once you place your order, you’ll receive a confirmation email, and we’ll begin processing it right away.
For in-stock items, expect them to ship within 2-4 business days, and delivery typically takes an additional 3-7 business days. Smaller items ship quickly via standard carriers like UPS, FedEx, or USPS, while larger saunas are delivered via freight carriers with curbside service.
You’ll receive a tracking number once your order ships, and for larger deliveries, the carrier will contact you to schedule a convenient 4-hour delivery window. Upon arrival, please inspect your order before signing to ensure everything is in perfect condition.
We’re committed to making the shipping process smooth and worry-free so you can enjoy your new sauna without delay!
Easy DIY Assembly—No Expertise Needed!
This hybrid sauna features a smart, modular design with a tongue-and-groove system for simple assembly. With just a power screwdriver and two people, it can typically be assembled in an afternoon, or a maximum of one day. Every piece fits seamlessly for a sturdy, reliable build. Whether you’re a DIY enthusiast or a first-timer, you’ll enjoy a smooth assembly process and be relaxing in your new sauna in no time!
Note: If you prefer not to assemble it yourself, we recommend hiring a local handyman. Thanks to the simplicity of our sauna kits, any handyman team can easily complete the setup with no prior experience required.
Comprehensive Warranty for Peace of Mind
We stand behind the quality of every sauna we sell, offering a full manufacturer’s warranty to ensure lasting performance. If anything goes wrong during the warranty period, we’ll replace the defective part at no cost to you, including shipping. Labor costs aren’t covered, but no worries—our saunas are designed with easy-to-remove parts that pop in and out, so professional help isn’t required.
The warranty remains in effect for as long as you’re the owner of the sauna, giving you complete confidence in your purchase and peace of mind throughout your ownership.
Hybrid Sauna Health Benefits
Hybrid saunas combine the best of traditional and infrared saunas, offering a unique combination of heat therapies that provide a wide range of scientifically supported health benefits.
- Detoxification: The dual heat system increases sweat production, helping eliminate toxins like heavy metals and chemicals. Infrared heat penetrates deeper, enhancing detoxification by up to 20% more compared to traditional heat alone.
- Improved Cardiovascular Health: Regular use of hybrid saunas has been shown to lower blood pressure, improve circulation, and reduce the risk of heart disease. The combination of traditional and infrared heat offers a balanced approach for heart health.
- Pain Relief & Muscle Recovery: The infrared component helps reduce inflammation and accelerates muscle recovery, while the traditional heat provides immediate relaxation and relief. Clinical studies show that 70% of chronic pain sufferers experience relief with consistent use of infrared heat.
- Skin Health & Anti-Aging: Hybrid saunas stimulate collagen production and improve skin elasticity, with infrared heat enhancing hydration and reducing wrinkles by up to 26%. Traditional heat opens pores and removes impurities for clearer, healthier skin.
- Stress Relief & Better Sleep: The combination of traditional heat for immediate relaxation and infrared heat for deeper stress relief helps reduce cortisol levels, leading to improved sleep and mental clarity. 83% of users report better sleep after regular sessions.
These benefits make hybrid saunas a powerful and versatile tool for overall wellness, allowing you to enjoy the advantages of both traditional and infrared therapy in one system.
Sauna Mastery: A Playbook for Success
Enhance your sauna experience with this specially designed bonus feature to help you achieve your health and wellness goals and get the most out of your sauna investment.

We are US owned and operated with our main headquarters located in Dallas, Texas. We ship orders anywhere within the continental US from our distributed network of warehouses operated by our logistics partners in California, Illinois, and Virgina.
We're proud to provide FREE SHIPPING on all of our products throughout the Continental United States.
Choosing between an infrared sauna and a traditional sauna depends on your personal preferences, health goals, space, budget, and other practical considerations like power requirements. Here’s a breakdown to help you decide:
1. Heat Experience & Comfort:
- Traditional Saunas: Heat the air to high temperatures (up to 190°F) and warm your body from the outside in. This creates an intense, steamy environment that many people love for its authenticity and immediate sweating.
- Best for: Those who enjoy high heat and steam, and want the classic sauna experience.
- Infrared Saunas: Use infrared light to directly heat your body at lower temperatures (120-150°F). This gentle heat penetrates deeper into the muscles and tissues, allowing for longer, more comfortable sessions.
- Best for: People who prefer a milder, more gradual heat and still want deep detoxification.
2. Health Benefits:
- Traditional Saunas: Great for improving cardiovascular health, muscle relaxation, and detoxification through intense sweat. They are effective at reducing heart disease risk by up to 63% and relieving joint and muscle pain.
- Infrared Saunas: Offer similar benefits but with deeper penetration, promoting enhanced detoxification (up to 20% more), collagen production for better skin, and more effective pain relief and muscle recovery.
3. Cost:
- Traditional Saunas: Typically more expensive upfront due to the construction requirements (wood, rock heaters, etc.). They also may incur higher operational costs due to their energy consumption.
- Best for: Those who are willing to invest more for a luxurious, authentic experience.
- Infrared Saunas: Usually more affordable, with lower upfront costs and more energy-efficient operation. They use less power, which helps save on electricity bills.
- Best for: People on a budget looking for an economical option with lower ongoing costs.
4. Power Requirements:
- Traditional Saunas: Often require dedicated electrical wiring and professional installation due to their higher power needs, especially for larger models.
- Best for: Those prepared for a more involved setup and higher electrical demands.
- Infrared Saunas: Use less power and many 1- or 2-person models can be plugged into a standard 120-volt outlet, meaning no electrician is required for most smaller models.
- Best for: People looking for a simple, plug-and-play setup without the need for special wiring.
5. Space & Installation:
- Traditional Saunas: Require more space due to their design, especially if you want steam options. They are typically installed in larger areas like basements, home gyms, or outdoor spaces.
- Best for: Those with ample space and the desire for a more immersive, traditional setup.
- Infrared Saunas: Tend to be more compact and space-efficient, making them suitable for smaller areas like bathrooms, closets, or even bedrooms.
- Best for: Those with limited space or seeking a more flexible, portable option.
6. Energy Efficiency:
- Traditional Saunas: Use more energy because they need to heat the entire room and maintain high temperatures for the session.
- Best for: Those who don’t mind higher energy use for a more intense sauna experience.
- Infrared Saunas: More energy-efficient, as they use less power and operate at lower temperatures.
- Best for: Those looking to reduce energy consumption and environmental impact.
7. Maintenance:
- Traditional Saunas: Require ongoing maintenance, especially with wood care and the rock heaters, which need cleaning and periodic replacement of stones.
- Best for: Those who don’t mind the upkeep for a traditional experience.
- Infrared Saunas: Generally lower maintenance, with fewer components needing care. The infrared panels are durable and require minimal upkeep.
- Best for: Those looking for a low-maintenance option.
Key Considerations:
- If you prefer high heat and the classic sauna experience, and you have the space and budget for it, a traditional sauna might be the best choice.
- If you’re looking for a more affordable, energy-efficient, and space-friendly option with deep health benefits (like enhanced detoxification and easy installation), an infrared sauna may be more suitable.
Summary:
- Choose a traditional sauna if you want an intense, authentic sauna experience and don’t mind higher upfront costs, energy use, or more involved installation.
- Choose an infrared sauna if you prefer a gentler heat, want to save on energy and installation costs, and value a compact, low-maintenance setup.
1-2 weeks if you order today. In stock products will ship out within 2-4 business days. Once your order leaves the warehouse, depending on where you're located, transit time will take between 3-7 business days.
As soon as you place your order, you will receive an email from us with your confirmation details. Please keep this email for your records. After we receive your order we will begin preparing your order for shipment. As soon as your order ships, you will receive an email with tracking information. 1-2 days prior to delivery, you will receive a phone call from the delivery team to schedule your delivery appointment. You must be home to accept and sign for the delivery during your appointment as scheduled.
This sauna is built to assemble easily within 30 minutes to two hours with two adults with no tools necessary. If, for whatever reason, you are unable to do it yourself, we recommend hiring a local handyman to do it for you.
We have partnered with Shop Pay to offer financing options at checkout. Just select Shop Pay Installments as your payment method in Step 3 at checkout and follow their instructions. You can find more info on the financing option here.
Our traditional saunas typically get up to 195F with a basic heater and can get up to 230F with a premium heater. Most of our infrared saunas get up to 140F, but if you want an infrared sauna that gets up to 170F, check out our Finnmark line.
Yes, as long as it's not exposed to sun and rain directly. If you don't plan to put it under a covered patio or something similar, we recommend getting a custom outdoor sauna cover for it and keeping it covered as shown.
Just the heating panels. Otherwise they're identical. The regular low EMF model emits less than 8mG and the Elite version emits less than 3mG. If you’re not familiar, EMF stands for electromagnetic frequency and you can think of it kind of like radiation. Long story short, the less EMF you expose yourself to, the healthier you’ll be, so it’s always best to go with the Elite version if you plan to make a habit out of using your sauna, and you can afford the upgrade.
Chromotherapy, also known as color therapy, is a form of alternative therapy that uses colors to improve physical and mental well-being. The idea behind chromotherapy is that different colors have specific wavelengths and energy frequencies, which can influence a person’s mood, emotions, and even health when absorbed by the body. Each color is believed to have unique healing properties.
- Red: Stimulates energy, vitality, and circulation.
- Orange: Promotes creativity, enthusiasm, and emotional balance.
- Yellow: Boosts mood, self-confidence, and concentration.
- Green: Known for its calming and balancing effects, aiding in relaxation and stress relief.
- Blue: Soothes anxiety, promotes calm, and helps with sleep disorders.
- Indigo: Encourages deeper levels of relaxation and introspection.
- Violet: Supports mental clarity and spiritual awareness.
Red light therapy uses low wavelengths of red or near-infrared light to penetrate the skin and stimulate cellular repair, boost collagen production, and reduce inflammation. It’s commonly used for improving skin health (anti-aging, wrinkles), speeding up muscle recovery, relieving pain, and enhancing circulation. It’s also beneficial for wound healing, hair growth, and even improving sleep and mood by supporting cellular energy production and reducing stress on the body.
Let customers speak for us
Designed For Easy Do-It-Yourself Assembly
Setting up your sauna is a breeze with our intuitive, snap-together design. No tools or prior experience needed—just follow the simple steps, and in as little as 30 minutes, you’ll have your sauna ready to use.