How to Choose an Infrared Sauna: A Buyer’s Guide + Health Benefits

Heidi Moretti using an infrared sauna with chromotherapy lighting

Using an infrared sauna at home with chromotherapy lighting

Saunas can have tremendous health benefits, so finding a sauna that will last you for years to come is the best return on your investment, both for your health and your pocketbook.

A good infrared sauna is going to be one that has low EMF, safe materials, is durable, has clinical evidence of benefits, and has good ratings from healthcare professionals who recommend them.

Using a sauna can help change your life, so this post will walk through what to look for and how to use one well.

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Why use an infrared sauna at home?

Sauna use is healthy, especially when you use one at least 4 times a week.

Many cultures across the world have long known about heat therapy and have used it to improve all sorts of ailments.

For example, the use of a sauna can be helpful, from pain relief to enhanced mental well-being and reducing the risk of some types of cancers.

While other healthy lifestyle habits like a nutritious diet and exercise go a long way, using a sauna can dampen down inflammation even further.

Cost-effective and time-effective

In order to get to the spa or gym 4-6 times a week, you will have to shell out a lot of cash over time.

The average spa visit runs at least $10-15 per session. Multiply that by 4-6 times a week over the course of a year, and you’re looking at several thousand dollars annually.

Some gym memberships include sauna access, but these are often dry saunas.

Dry saunas require a lot more time of sitting and waiting for the core temperature to increase to reap the same benefits of much shorter times in an infrared sauna. Time is precious.

Home infrared sauna perks

From a health clinician’s perspective, these are the biggest reasons to have a sauna at home:

  • You will be more likely to use it on a regular basis
    • Regular use is critical to reap the health benefits
  • Over the course of the year, it can easily offset the cost of gym or spa sauna access
  • More than one family member can reap the benefits at no extra cost
  • No sharing of tight spaces with other people, so less risk of catching a virus or bacteria
  • Infrared saunas are readily available for home use

Don’t get me wrong, if you have a gym that has a sauna and you feel good about going there, keep doing that. Be aware, though, that you likely won’t know the EMF output of these saunas, so it’s worth asking.

What to look for in a quality infrared sauna

Here are the big criteria to consider when comparing infrared saunas:

  • Low EMF – saunas should always be low EMF for the best health; ask the manufacturer for third-party EMF testing data
  • Clinical research to back its health claims
  • Full-spectrum infrared – ideally contains near infrared, far infrared, and mid infrared
  • Efficient heating technology – newer, patented heater designs tend to outperform older carbon-panel heaters on efficiency and even heat distribution
  • Easy to install – saunas are large and heavy, so realistically some work and help will be needed, but assembly shouldn’t require a rocket scientist
  • Good heat distribution – cheaply-designed saunas will lack good heat distribution, meaning you won’t reap the health benefits as quickly or easily
  • Long warranty – a good warranty is a sign the manufacturer stands behind the product
  • Meets your home’s electrical specifications – confirm your electrical setup can support the unit without a major rewiring job; a dedicated outlet is usually recommended
  • Positive reviews – anything less than 4.5-star reviews on an investment like this is probably worth skipping
  • Materials – look for heat-sealed, non-toxic construction and eco-certified wood (PEFC or FSC-certified), with options like basswood for those sensitive to other woods

Indoor or outdoor sauna?

This is largely a matter of preference, but you shouldn’t choose a cheap sauna for outdoor use due to electrical considerations and weather durability.

The health benefits of infrared saunas are the same regardless of placement, so the choice comes down to space and preference. An outdoor infrared sauna might make sense if you have a pool or spa area outdoors, while an indoor sauna offers more privacy and protection from the elements.

If you do go the outdoor route, look for a model rated for outdoor use and plan for weather covering during off-seasons.

Staying hydrated and replenishing minerals

If you use your sauna regularly and sweat a lot, plan to drink extra water – at minimum an additional 32 ounces on sauna days – and hydrate before you get in.

When you sweat, you lose minerals, including sodium, sometimes significantly. One study of steelworkers who sweat intensely on the job found losses of up to 9 grams of salt a day. There’s no exact formula for how much salt any one person loses – people vary a lot in this regard.

Quick tip: if your sweat tastes salty, you’re losing a fair amount of sodium during your session.

You also lose magnesium when you sweat, though research suggests it’s typically less than potassium or sodium loss [R]. Sauna use may also increase your needs for potassium, calcium, B vitamins, and vitamin C [R].

Listen to your body and take breaks if you notice cramping or other signs of mineral depletion. A quality daily vitamin and mineral supplement can help fill any gaps, and trace mineral support from fulvic acid is another option worth learning about.

Benefits of infrared sauna

Many people find that sitting in a dry sauna can feel suffocating due to the high heat. One advantage of infrared saunas is that they’re often more comfortable at lower temperatures because the heat penetrates more deeply.

Research shows sauna use is associated with benefits across nearly every area of health. Here’s an overview:

  • Regular sauna use (4-7 times a week) is associated with better heart health
  • Sauna use is linked to reduced risk of sudden cardiac death, lower blood pressure, and may help improve cholesterol
  • Sauna use may help stabilize heart rate, which is relevant for those managing thyroid-related heart rate abnormalities
  • Burns calories and may support weight management
  • Triggers heat shock proteins, which may help dampen inflammation – frequent sauna users have shown lower levels of inflammatory markers like C-reactive protein
  • May reduce pain in conditions like rheumatoid arthritis and ankylosing spondylitis
  • Better sleep and fewer sick days reported among regular users
  • Supports detoxification by sweating out heavy metals, including lead, cadmium, and mercury
    • Pairing sauna use with heavy metal-supportive foods can add to this effect – cilantro and chlorella are two options
  • Better immune function, including fewer cold symptoms
  • Helps reduce stress by supporting relaxation

For a deeper overview of the research, visit Thyroid Nutrition Educators.

Safety

According to Thyroid Nutrition Educators, sauna use is generally considered safe. Mild side effects can occur, and caution is warranted for people with orthostatic hypotension. Studies have demonstrated safety even in populations with congestive heart failure, though anyone with a cardiovascular condition should check with their physician before starting sauna use.

Stay hydrated, skip a session if you’re feeling unwell, and gradually increase your time in the sauna as your body adjusts.

DIY infrared sauna

If you want to avoid the cost of a pre-built unit, you can build your own.

Keep in mind that you’ll want to avoid toxic glues and flammable materials, so there’s some homework involved. You’ll also need a dedicated space that can handle sustained high temperatures. For more information, visit Infrared Light Therapy.

Where to buy

Infrared sauna reviews often link to Amazon-listed products for convenience. A reasonably well-reviewed option is the Dynamic Infrared Sauna, which uses natural reforested Canadian Hemlock wood with far infrared heat from 6 carbon PureTech™ ultra-low EMF heat panels.

Whichever brand you consider, use the buying criteria above – low EMF, non-toxic materials, warranty, and third-party testing – to compare your options and choose what best fits your space and budget.

Summary

Regular infrared sauna use, paired with other healthy lifestyle habits, can support cardiovascular health, pain relief, detoxification, and stress reduction. When choosing a sauna, prioritize low EMF, non-toxic and eco-certified materials, a solid warranty, and third-party safety testing over price alone.

Combine sauna use with other healthy habits – nutritious foods and supportive protocols like a kidney cleanse diet can help support your body’s natural detoxification processes too.

Related: Sauna Stress Relief + Gut Benefits

author avatar
Heidi Moretti, MS, RD, CLT
Heidi Moretti, MS, RD, CLT is The Healthy RD.  A registered dietitian for 25 years as well as a book author of the new bestselling book Cortisol FixPeriod Fix and Gut Fix and The Whole Body Guide to Gut Health, Heidi has a passion for functional nutrition and natural medicine.  She has researched supplements and natural medicine throughout her career.  One of her biggest loves is helping people gain function and vitality by tackling the root causes of illness.

9 thoughts on “How to Choose an Infrared Sauna: A Buyer’s Guide + Health Benefits”

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  2. I love that you point out that “even the most expensive saunas are going to be less than going to the spa or gym long-term”! I had never thought of it like that, but it’s so true!

  3. I and my wife had always wanted a sauna or go to a place that haves one! This one is the most amazing and most adorable looking sauna ever! I love that it isn’t just the typical normal sauna that many people have been to or have enjoyed but it also has health benefits with the right amount of temperature/heat and the ambiance is looking real comfortable!

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  5. Pingback: Sauna Stress Relief + Gut Benefits

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