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Spring Sale on Now | $100 with code SPRING100 | Free Shipping Over $1,000
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SunRay HL300D 3-Person Grandby Outdoor Infrared Sauna

Authorized Dealer | 7 Year Warranty
Save 12% Save 12%
Current price $3,490.00
Original price $3,956.00
Original price $3,956.00 - Original price $3,956.00
Original price $3,956.00
Current price $3,490.00

Delivery time between 1-2 weeks

30 Day money back guaranty

No Sales tax* Excludes Wyoming

Free Shipping

On orders over $1,000

Free Returns

Within 30 days*

Zero Sales Tax

Excluding Wyoming*

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SunRay HL300D Grandby Sauna - 3person (Outdoor)


Step into a world of relaxation and rejuvenation with the SunRay HL300D 3-Person Grandby Sauna. This stunning outdoor infrared sauna, crafted from durable Canadian Hemlock, is a sanctuary of wellness that comfortably seats three people. With rapid heat ceramic heaters that quickly reach up to 140 degrees, you can create your perfect spa-like experience right in your backyard. The Grandby sauna is not only a healthful retreat but also a beautiful addition to any outdoor setting. It's packed with features like wide bench seating for ultimate comfort, an oxygen ionization system for fresh, clean air, recessed interior lighting for a serene ambiance, and a Bluetooth system for your favorite soothing tunes. Easy to assemble and designed to enhance your outdoor patio setup, the SunRay HL300D 3-Person Grandby Sauna is your ticket to a daily dose of tranquility and wellness.

Notice: Although liftgate delivery is included, the trucking company will only take the shipment curbside. If they can, they will bring it up the driveway. You will be responsible for removing the items from the pallet, so please have 2-3 people with you on-site to assist you.


  • Natural Canadian Hemlock Wood: The SunRay HL300D 3-Person Grandby Sauna is constructed from durable Canadian Hemlock wood. This type of wood is not only robust and long-lasting but also provides a natural, rustic aesthetic that enhances the overall appeal of your outdoor space.
  • 7 Rapid Heat Ceramic Heaters: This sauna is equipped with seven ceramic heaters that can quickly heat the sauna to your desired temperature up to 140 degrees. These heaters ensure an efficient and even distribution of heat for a thoroughly relaxing sauna experience.
  • LED Control Panel: The Grandby sauna features an easy-to-use LED control panel. This allows you to adjust the settings of your sauna session according to your preferences, ensuring a customized and enjoyable experience every time.
  • Recessed Interior Lighting: This feature enhances the ambiance within the sauna. The recessed lighting provides a soft, calming illumination, adding to the relaxing atmosphere and making your sauna sessions more enjoyable.
  • Bluetooth Speaker System: For music lovers, the Grandby sauna comes with a built-in Bluetooth speaker system. This allows you to play your favorite tunes or podcasts during your sauna session, adding an entertaining element to your relaxation time.
  • Ozone Sterilization System: This sauna is equipped with an ozone sterilization system, which helps to keep the air inside the sauna clean and fresh. This system enhances the overall wellness benefits of using the sauna by creating a healthier breathing environment.
  • 2100 watts: With a power rating of 2100 watts, the Grandby sauna is both energy-efficient and powerful. This ensures that your sauna sessions are effective in helping to improve circulation, soothe muscles, and promote overall wellness.
  • ETL/CSA Certified: meeting all US and Canadian electrical safety standards - operates on a standard 120V, 20 amp.


 Dimensions: 72" x 47" x 83"

Exterior Product Dimensions

 Exterior Width: 69
Exterior Depth: 47
Exterior Height: 83

Interior Product Dimensions 

Interior Width:
Interior Depth: 43
Interior Height: 68
Product Weight: 425 lbs.



Infrared saunas utilize light to produce heat, a unique feature that makes them different from traditional saunas that heat the surrounding air. This method heats your body directly, allowing better penetration into your skin and providing various health benefits. The infrared light waves produced by these saunas create heat within the body, causing you to sweat and release accumulated toxins. The heat generated by an infrared sauna can increase your core body temperature, leading to a rise in heart rate — similar to what you experience during physical exercise. As your body works harder to cool down or maintain an elevated heart rate, it burns extra calories, potentially improving cardiovascular health. Moreover, the deep-reaching heat of infrared can stimulate the lymphatic system, enhance blood circulation, and oxygenate your cells, facilitating cellular repair and regeneration, thus contributing to overall health and wellness.

  • Detoxification: The process of sweating, a natural mechanism of the body to eliminate toxins, is critical for detoxification and is encouraged by infrared saunas.
  • Relaxation: Infrared sauna therapy aids in relaxation by balancing cortisol levels, which is the primary stress hormone in your body.
  • Pain Relief: The deep penetration of infrared heat into tissues, joints, and muscles can alleviate minor to major aches and chronic pain conditions.
  • Improved Circulation: Regular usage of infrared saunas, particularly at the middle-infrared level, can promote blood flow, enhance muscle recovery, and reduce pain and inflammation post strenuous exercise.
  • Skin Purification: Infrared sauna technology can purify your skin by eliminating toxins from your pores and boosting circulation, leading to clearer, softer, and healthier skin.


2100 watts-This model only requires a 20-amp 120V power outlet.

Download the User Manual Here

Our primary commitment is to ensure your interaction with us is as easy and uncomplicated as possible. Below is information about our shipping policy.

Shipping Charges

Free Shipping - On all saunas, hot tubs & heaters
Sauna Stones - $99
Dundalk Accessories - $50 
All other accessories - $30 

Additional charges may apply in certain locations and circumstances such as:

  • Delivery sites inaccessible by standard carriers (FedEx, UPS) will be charged an LTL freight fee.
  • Roads that cannot accommodate at least Class 6 Size Vehicles, such as remote or island locales.
  • Crates exceeding 92” in length can't be handled by a standard liftgate. If this happens, you'll need to manually unload the crate (with help), employ a moving service, or use forklift equipment. Note: The driver is not allowed to assist in these situations due to insurance constraints.
  • Any delay in receiving your delivery beyond 48 hours from the initial contact by the freight company might result in a daily storage fee of $100.

Shipment methods and sizes

Most saunas kits are shipped as kits pre-packaged onto a pallet and sent via LTL.

Pre-assembled saunas are shipped via flat-bed truck delivery by special appointment. These product will require off-loading from the flat-bed truck by a crane or extended forklift. This is not provided by the courier so you will be responsible for arranging the offloading and transporting the product to its final location.

Shipping Timeline

Upon placing your order, you'll promptly receive an "Order Acknowledgment" email, indicating we've got your order details. We will then check with our suppliers to ensure your selected item is ready for dispatch. Most of our off-the-shelf saunas and accessories are primed for quick shipping, whereas tailor-made saunas require more time (refer to the Shipping Timeline below).

Country: United States
Shipping Method: FedEx, USPS, and Local Freight Companies.
Handling Time: 1-2 Days (Monday to Friday)
Transit Time: 3-5 Days (Monday - Friday) depending on location
Total Delivery Time: 5-7 business days

After your order is verified and we've processed your payment, we'll prepare it for shipping. On the day of dispatch, a tracking update will be sent to the email you provided during checkout, allowing you to monitor your shipment with ease.

Should you not receive any tracking details within 5 business days from your order date, please don't hesitate to connect with us through chat, our contact page, or directly at

Note: In the event of unforeseen delays, such as extreme weather or supplier issues, one of our customer support specialists will contact you to explain the situation and discuss any changes. 

Where we ship to

We ship to all states within the contiguous United States. excluding Alaska, Hawaii, and and US islands. If you're located in these areas or need shipping specifics, please reach out for a detailed quote. Your order will first be sent to the closest freight terminal near you. Upon its arrival, the freight carrier will contact you to schedule a curb-side delivery at your convenience.

Where we ship from

All orders are shipped directly from the manufactures warehouse in Illinois &. This ensures the fastest possible delivery at the lowest cost for our customers.
We do not offer any Chinese or Asian manufactured saunas and all shipments are from inside the United States.

Receiving Your Order

The shipping company will contact you to schedule your delivery. Upon arrival:

  1. Inspect Upon Arrival: Before signing any paperwork, take care to inspect your delivered items.
  2. Count & Confirm: Make sure all pieces of your order are present.
  3. Hidden Damages: If you find damages not initially evident during delivery, report them immediately to

Handling Shipment Damages

Shipping damages, while uncommon, fall into two categories:

  1. Visible Damage: Damage is evident on the container/crate.
  2. Concealed Damage: Contents are damaged, but the container appears intact.

For visible damages or if items are missing, it's crucial to make precise notes on the delivery receipt. If concealed damages are found after unboxing, report them within 72 hours. Finnish Sauna Builders will replace any damaged or missing components if reported within this window. Claims made after this period cannot be addressed.


If you choose to refuse your order upon delivery for reasons other than evident damages or a shipping mistake, you'll be subject to any related shipping charges.

 When you are ready to purchase your items, click the Proceed to Checkout button. Please log in if you have an account with us, if you do not already have an account you will be prompted to create one, or you can checkout as a guest only.

On your payment screen you will see the total amount of items. Please add your payment method and billing address. accepts a number of payment methods:

  • Apple Pay
  • Diners Club
  • Discover
  • Meta pay
  • Google Pay
  • MasterCard
  • Shop Pay
  • Visa

How do I know my payment transaction is secure?

We ensure that every credit card transaction occurs within a secure environment. The payment system has a 128-bit SSL security encryption. You can see the transaction is secure if you see a key lock at the bottom right of your web browser. We do not retain your credit card information after your order is complete. Rather, it is submitted directly to our banks. You can rest assured that with each purchase your credit card or bank account information will be secure. is committed to a safe, enjoyable and smooth online shopping experience for all customers. For your safety, has implemented a payment security screening process. Confirmation of customer details on certain orders may be required prior to the order being processed. Please ensure that you provide accurate and up to date contact information should we need to confirm the security of your order.

For further inquiries: 

  • Website:
  • Phone number: (844) 933 2021
  • Email:
  • Physical address: 30 N Gould St, Ste R Sheridan Wyoming 82801 United States