Finnmark FD-4 Trinity 2-Person Hybrid Infrared & Steam Sauna & Red Light

Shopping for an infrared sauna can feel overwhelming. We get it.

Let's be honest, you can spend hours scrolling through websites and still be left wondering which sauna is actually right for you. It's easy to get lost in a sea of technical jargon and competing claims.

That’s why we put this guide together. Below are the core reasons Finnmark stands apart, not just in quality, but in the results and peace of mind you get. Here’s what makes the difference.

The Finnmark Difference: 7 Core Principles

Instead of a long, confusing list, it really boils down to these key commitments.

1. True Therapeutic Heat (Up to 170°F). This is a big one. Much of the clinical research on sauna benefits is done at temperatures higher than what most home saunas can reach. While many brands top out around 145°F, Finnmark saunas are engineered to reach a powerful 170°F, ensuring you get the full therapeutic experience.
2. Advanced Full-Spectrum Heating. Finnmark is one of the only brands that combines long-wave Carbon and high-output Ceramic heaters. Think of it as getting two types of therapy at once: the deep, penetrating heat targets your core while the surrounding heat provides a gentle, 360-degree immersion. No cold spots, just total-body wellness.
3. Ultra-Low EMF Radiation (All 4 Types). You're using a sauna for your health, so it should be a clean experience. Finnmark saunas feature low-emitting heaters and upgraded, shielded electrical components to minimize all four types of radiation (EMF, ELF, EMI, and RF) for the lowest possible exposure.
4. Premium, Non-Toxic Materials. The interior is beautiful, antimicrobial Canadian Cedar that resists mold and won't off-gas chemicals. The power supplies and internal wiring are all upgraded to last 12-15 years, not the typical 5-7, ensuring your sauna is a lasting investment.
5. A Warranty You Can Actually Trust. In the U.S., a "lifetime" warranty is legally considered 7 years. Finnmark offers a straightforward, comprehensive 10-year warranty on the entire sauna. Plus, their Spectrum Plus™ heaters are backed by an unconditional lifetime warranty—that's how confident they are.
6. Certified Safe and Ethically Sourced. With more third-party safety certifications (ETL, CE, UL) than nearly any other brand, you can relax with peace of mind. The wood is also sourced from a Forest Stewardship Council (FSC) approved mill, ensuring it's harvested responsibly.
7. Decades of Manufacturing Experience. These saunas are built in a dedicated sauna factory—not a generic furniture factory. That means every unit is crafted by experts with decades of specialized experience.

What Doctors and Customers Are Saying

You don't have to take our word for it. Here's what medical experts and people who use their Finnmark sauna every day have to say.

An Investment Towards Optimal Health

“Heating your core temperature is a powerful tool to enhance your health. It protects your heart, burns calories, and helps you sweat away toxins. INFRARED heat is the most comfortable way to accomplish this. I love using my own sauna and believe it is an excellent investment towards optimal health.” —Steven Masley, MD, FAHA, FACN, CNS

Favorite Health Tool

“Infrared sauna is my FAVORITE health tool. Everyone who gets one LOVES IT. Just sweat it out. There is nothing more powerful for detoxifying your body and stimulating your immune system!” —Hyla Cass, MD

People Love Their Finnmark Sauna

“Just three sessions a week for three months and my chronic neck pain is finally gone. I can say without a doubt that regular infrared sauna therapy was the best investment I’ve made for my health and the health of my family.” —Kelly R.

“I have enjoyed my sauna more than I ever dreamed I would. It doesn’t take up much space... Because it is in my home, it is convenient and easy to use, and I can use it every day.” —Linda M.

“I use this sauna every night and love the improvement in my sleep. Because it takes away inflammation that can occur from running, I am able to work out the next day consistently without achy joints.” —Claudia S.

Your Daily Ritual for Wellness

A sauna session engages your body’s natural ability to heal and restore itself. Regular use can be a powerful tool to help you:

• Soothe sore muscles and joints
• Support detoxification through a deep, healthy sweat
• Promote relaxation and help manage daily stress
• Support cardiovascular health and circulation
• Leave your skin feeling refreshed and glowing
• Create a peaceful space for mental clarity

Explore the Finnmark Designs Collection

Find the perfect sauna for your space and wellness goals.

1-Person Full Spectrum

• Perfect for small spaces. Plugs into a standard home outlet!
• Exterior: 37”W x 38”D x 78”H

2-Person "Hybrid 2.0" Full Spectrum

• Ideal for couples or those wanting more room. Plugs into a standard home outlet!
• Exterior: 48”W x 44”D x 78”H

3-4 Person Full Spectrum

• Great for families or socializing. Requires a 230v 15a outlet.
• Exterior: 71.4”W x 45.75”D x 78”H

"Trinity" Infrared & Steam Combo

• The ultimate experience with both infrared heaters and a traditional Harvia steam heater.
• Exterior: 48.8”W x 48.8”D x 83”H

FREE & FAST SHIPPING SAVE Hundreds Today with Free Shipping on All Orders. We Ship to ALL 48 Lower States (We do not ship to Puerto Rico, Hawaii, Alaska)

Lead Time - 3-7 Business Days Depending on Product - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.

Transit Time - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.

Our Shipping Partners: FedEx, UPS, Freight Club (among others)

We partner with the most reliable freight companies in the USA to ensure your order arrives safe and in a timely manner.

Your Item will ship from warehouses all across the United States to ensure fast and efficient delivery times for our customers.

If there are any delays regarding your product shipment, we will let you know in advance. 

Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail. (please allow a few hours for this to come through in some cases) This means that we have received your order in our system and pre-authorized your credit card for the purchase. 

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment. 

If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at contact@topture.com

No Shipping outside the USA. (Some exceptions apply - if the website permits you to check out and enter your shipping address, you will receive your order. Some products in particular are available in Canada).

Shipping Options

Our base "Curb-side" Pickup shipping is always completely free! This option usually takes between 5-15 days to arrive at your doorstep, after you have submitted your order.

Threshold Shipping: This involves the item being brought onto your porch, or into a sheltered/garage area. 

Double-Check Your Address

To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct
abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase or not reachable by an 18-wheeler for heavy items without making an indication of that at the point of purchase.

Damages

Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage to contact@topture.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 24 hours.

1. Engineering-Grade Expertise (Not Just Salespeople) Unlike standard retailers, our team includes a mechanical engineer with 20 years of experience and technicians with 55+ years in the field. We don’t just sell boxes; we understand the electrical, spatial, and mechanical requirements of your home. You get clinical-level advice, not a sales pitch.

2. Authorized Retailer & Full Warranty We are a fully authorized partner for every brand we carry. This guarantees you receive authentic, factory-fresh equipment with a valid manufacturer's warranty. Zero grey-market risks. Zero voided warranties.

3. 100% Insured Priority Shipping We treat your order with urgency. We utilize strategic US-based warehouses for 24-48 hour dispatch on most items. Crucially, every shipment is 100% insured. If your item arrives with even a scratch, we handle the claim and replacement immediately at no cost to you.

4. No Sales Tax & Best Price Guarantee The price you see is the price you pay. We charge No Sales Tax (except where required by law) and no hidden handling fees. Find a lower price at another authorized dealer? We will match it instantly.

5. Nationwide Installer Network Need more than just delivery? We maintain a directory of independent professionals across the country. We can provide you with access to our list of recommended installers to help get your wellness space up and running without the headache.

6. Lifetime Technical Support Your relationship with us doesn't end at checkout. You get lifetime access to our US-based support team for installation guidance, troubleshooting, and usage protocols.