Backyard Discovery Lennon Traditional Outdoor Sauna Review

You’re Not the Only One Sauna-Shopping Right Now

If you’ve been eyeing a home sauna, you’ve probably hit the same wall I did: dozens of options, big promises, and not a lot of honest detail on what actually happens after delivery.

That’s exactly why I dug into the Backyard Discovery Lennon Traditional Outdoor Sauna for this review. I read through the product specs line by line and combed through more than 40 verified owner reviews to see what people love, what trips them up, and who this sauna actually fits.

This Backyard Discovery Lennon Traditional Sauna review pulls all of that together in one place, so you can decide if it’s the right choice for you before you spend the money.

Product Overview

The Lennon is a 2-4 person outdoor cube sauna from Backyard Discovery, built from solid cedar with a modern, rounded-corner cube design instead of the traditional barrel shape.

It’s powered by a 9kW electric PrairieFire heater, controlled through a Wi-Fi-enabled touch panel, and finished with an 8mm tempered glass door and a powder-coated galvanized steel roof.

It ships as a kit with guided BILT app assembly instructions, and it’s backed by a 5-year warranty on components. It’s rated 4.7 out of 5 stars on Wayfair, based on a large number of verified and third-party owner reviews.

Key Features and Benefits

Fast-Heating 9kW Electric Heater

The Lennon’s PrairieFire heater is rated to reach temperature roughly 50% faster than a comparable 6kW unit. Multiple owners confirm this in practice, with several reporting a jump from around 64°F to 170°F in under 20 minutes.

If your biggest hesitation about a home sauna is “will I actually use it on a weeknight,” a fast heat-up time matters more than it sounds like it should. Nobody wants to plan a sauna session an hour in advance.

Wi-Fi Control and Preheating

The smart control panel lets you start the sauna from your phone before you even walk outside. Several owners specifically call this out as a favorite feature, since it means the sauna is already warm by the time you’re ready.

Worth knowing: a few reviewers found the touchscreen panel itself hard to read in direct sunlight and occasionally slow to register touches, and one owner noted the metal control box can weaken the Wi-Fi signal if you’re not standing close to it. The phone app appears to be the more reliable way to control it day-to-day.

Solid Cedar Construction

The cabin is built from tongue-and-groove cedar panels, a wood species long used in outdoor structures for its natural durability. According to wood-industry research, cedar’s natural oils give it resistance to moisture, decay, and insect damage without chemical treatment, which is part of why it’s a common choice for saunas, fencing, and outdoor furniture.

Owners consistently describe the wood as thick and well-built, and several mention that the interior smell alone makes the sauna feel like a genuine upgrade to their backyard.

Two-Tier Bench Seating

The Lennon includes two seating benches, and several owners point out that the higher bench runs noticeably hotter than the lower one, so you can choose your intensity just by where you sit. A few reviewers also mention that the benches are deep enough to lie down on, which is a nice option if you like to stretch out during a session.

Traditional Steam Ritual

A bucket and ladle are included so you can pour water over the heated rocks for bursts of steam (löyly, in Finnish sauna tradition), plus dimmable interior LED lighting for setting the mood. This is the classic Finnish sauna experience, and it’s worth noting that most of the research on sauna health benefits has actually been done on this type of traditional, heated-room sauna rather than infrared models. A widely cited Harvard Health-reported study found that men who used a traditional sauna four to seven times a week had notably lower death rates than those who used one only once a week. That’s not a reason to buy this specific sauna, but it is a reason the ritual itself has stuck around for centuries.

Weather-Resistant Steel Roof

The galvanized steel roof is designed to protect the cedar cabin from rain and snow year-round. A handful of owners in wetter climates (Pacific Northwest, Midwest, Canada) note that the roof can pool water at the seams if it’s assembled exactly per the default instructions, and recommend adding flashing, butyl tape, or a slight pad slope during setup to direct water off the back. It’s a fixable detail, but one to plan for if you live somewhere rainy.

Weight and Dimensions:

Overall dimensions: 6’6.31″ H x 5’9.5″ W x 4’5.13″ D
Overall product weight: 643.75 lb.
Capacity: 2-4 person occupancy, with 2 seating benches
Heater: 9,600-watt PrairieFire electric heater, 50 amps
Maximum temperature: 194°F
Door: 8mm tempered glass
For outdoor use only

Pros and Cons

After going through dozens of owner experiences, a clear pattern shows up: people are genuinely happy with the build quality and heat performance, but there are a few recurring rough edges worth knowing about before you buy.

Things We Liked:

Heats up fast — often 15-20 minutes to full temperature
Thick, high-quality cedar that owners say feels premium
Wi-Fi preheating from your phone is genuinely convenient
Two-tier bench design lets you control your own heat intensity
Comprehensive 5-year warranty on components
BILT app assembly instructions are detailed and well laid out
Customer support is repeatedly described as fast and responsive for missing or damaged parts

Things We Didn’t Like:

Touchscreen control panel is hard to read in sunlight and can be unresponsive
Roof seams can pool water in wet climates unless you reinforce them during assembly
Assembly is long (commonly 10-15+ hours) and easier with two people

Verdict

The Lennon consistently earns high marks from owners for heat performance and build quality, and the 4.7-star average across a large volume of reviews backs that up. The control panel and roof drainage are the two issues that show up often enough to plan around, not ignore.

Check Current Price on Wayfair

See all: Backyard Discovery Saunas on Wayfair

Who Is This Sauna For?

This might be a good fit if you want a genuine 2-4 person Finnish-style sauna experience in your own backyard and don’t mind putting in a weekend on assembly. It could also work well if you’re short-term renting your property, since a few owners specifically bought it for Airbnb guests.

You want fast heat-up times over a slow-building infrared unit
You’re comfortable with a multi-hour DIY-style assembly, ideally with a second person
You live somewhere with heavy rain or snow and are willing to add extra roof sealing during setup
You have 240V/50-amp electrical access, or are willing to arrange it

What Customers Are Saying

Across more than 40 verified and third-party reviews, the overall sentiment is strongly positive, with most owners praising the wood quality and heat-up speed while flagging the same handful of quirks with the control panel and roof.

Here’s a sample of what real owners have said, lightly edited for length:

“The best looking sauna around! Easy to assemble once everything is laid out.”
“It heated up very fast — went from about 64 degrees to 170 in under 20 minutes.”
“The wood is thick and feels solid, not flimsy. You can tell it’s made to last.”
“Support was absolutely stellar. I had a missing part and it arrived within two days.”
“The touchscreen display is a weak point — hard to see in daylight and the buttons don’t always register.”
“The steel roof pooled water on top until I added flashing and re-sloped my base. After that fix, no leaks.”
“As a Finn who’s used wood-burning, smoke, and electric saunas back home, I was genuinely impressed with how fast and authentic this one felt.”

FAQ & Additional Tips

Where can I buy the Backyard Discovery Lennon Sauna?
It’s sold through Wayfair, linked throughout this review.

How long does assembly take?
Owners commonly report 10-15 hours, and it’s noticeably faster with two people. A few solo builders took closer to 30 hours spread across several days.

Does it require special electrical work?
Yes. The 9,600-watt heater requires a 50-amp circuit, so you’ll likely need an electrician to run a dedicated line unless you already have one available near the install site.

What’s the warranty?
Backyard Discovery includes a 5-year warranty covering components, and multiple reviewers report fast replacement shipping (often within a couple of days) when a part arrived missing or damaged.

Any assembly tips from real owners?

Unpack and lay out every box before you start — parts aren’t packed in build order
Use a rope or strap to help align the upper cube sections
If you’re in a wet climate, add flashing/butyl tape at the roof seams and consider sloping your base slightly toward the back
Start the heater at a lower target temperature (around 176°F) on the first few sessions to avoid tripping the overheat sensor

Final Verdict

Wrapping up this Backyard Discovery Lennon Traditional Sauna review, this looks like a genuinely well-built outdoor sauna that heats up fast and holds up to real, frequent use. The consistent 4-5 star owner feedback on wood quality and heat performance is hard to argue with.

If you’re comfortable handling the control panel’s rough edges and doing a little extra roof sealing up front, this could be a solid long-term addition to your backyard.

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