SunRay Cayman Traditional Outdoor Sauna 400D7 · 4-Person
A 4-person outdoor traditional sauna in Canadian hemlock with double-panel walls, a metal roof, upper and lower benches and an included 6 kW Harvia electric heater.
- 6 kW Harvia electric heater with stones included; SunRay rates the Cayman to 180°F.
- Sealed, weather-resistant Canadian hemlock cabin with double-panel walls under a metal roof.
- 10-year structural warranty from SunRay, with 1 year on parts and electronics.
- Description
- What's Included?
- Specifications
- Assembly & Installation
- Shipping
- Documents
- SunRay Warranty
- FAQs
The SunRay Cayman (model 400D7) is a 4-person outdoor traditional sauna built from Canadian hemlock, with double-panel walls, a sealed, weather-resistant cabin, a metal roof, a black-framed glass front and a 6 kW Harvia electric heater with stones included. SunRay lists its overall size as 72" W × 69" D × 85" H and its roof footprint as 85" W × 69" D; inside, it measures 68" W × 58" D × 75" H, with upper and lower benches. It is a wet/dry sauna: water poured over the heater stones raises the humidity. SunRay lists the Cayman at 810 lbs, and it ships by LTL freight as a kit for on-site assembly.
Among SunRay's outdoor traditional saunas, the SunRay Denali (model 400D5) also seats four and has a 6 kW Harvia heater, in western red cedar under a sloped metal roof, with a double-sided bench along two walls. The 3-person SunRay Freeport (model 300D1) is aged Canadian hemlock under a metal composite roof, with a 4.5 kW heater, in a 61" × 51" cabin with a 73" × 63" roof footprint. For other sizes and brands, see our outdoor traditional saunas.
How the SunRay Cayman is built
SunRay builds the Cayman for outdoor placement, with the heater, the benches, the lighting and the accessories part of the kit.
- Canadian hemlock cabin: double-panel walls, which SunRay describes as insulated, in a cabin SunRay describes as sealed and weather-resistant.
- Metal roof: it overhangs the cabin; SunRay gives the footprint with the roof as 85" W × 69" D.
- Glass front: a black-framed glass front with a glass door.
- 6 kW Harvia electric heater: supplied with stones. SunRay does not name the Harvia model or describe its controls.
- Heat: SunRay rates the Cayman to 180°F.
- Benches: upper and lower benches, seating four.
- Lighting: ambient dome lighting, as SunRay lists it.
- Accessories: a thermo-hygrometer and a sand timer.
What comes with the SunRay Cayman?
The SunRay Cayman ships as a complete outdoor sauna kit with its heater: the Canadian hemlock cabin panels, the metal roof, the glass front and door, the upper and lower benches, the 6 kW Harvia heater with stones, the dome lighting and the accessories. The 240 V circuit, its connection and the foundation are not included.
Included in the kit
Cabin and roof
- Canadian hemlock cabin panels with double-panel walls
- Metal roof
- Black-framed glass front with a glass door
Heat and interior
- 6 kW Harvia electric heater with stones
- Upper and lower benches
- Ambient dome lighting
Accessories
- Thermo-hygrometer
- Sand timer
Not included — arranged separately
- A dedicated 240 V circuit and its connection, by a licensed electrician; SunRay lists it at 40 A, and we confirm the rating with SunRay before your electrician sizes it (see Assembly & Installation)
- The foundation: a level, solid base sized for the 85" × 69" roof footprint
- Exterior sealant for the annual resealing SunRay's warranty requires
Does the SunRay Cayman include a heater?
Yes. The SunRay Cayman comes with a 6 kW Harvia electric heater and its stones, so there is no heater to choose separately. SunRay does not name the Harvia model. It runs on a dedicated 240 V circuit, which SunRay lists at 40 A. SunRay also lists an 8,000 W power draw, which does not match the 6 kW heater, so we confirm the rating with SunRay before your electrician sizes the circuit.
| Model | SunRay Cayman, model 400D7 |
|---|---|
| Brand | SunRay Saunas |
| Sauna type | Traditional, wet/dry |
| Placement | Outdoor |
| Capacity | 4 people |
| Exterior dimensions | 72" W × 69" D × 85" H (SunRay's overall figure) |
| Roof footprint | 85" W × 69" D (SunRay). SunRay gives the same 69" depth for the overall size and the roof, so plan the base and the site for the full roof footprint |
| Interior dimensions | 68" W × 58" D × 75" H |
| Interior volume | About 171 cu ft (calculated from the interior dimensions) |
| Benches | Upper and lower benches |
| Door and glass | Black-framed glass front with a glass door |
| Wood | Canadian hemlock; double-panel walls, described by SunRay as insulated; sealed, weather-resistant cabin |
| Roof | Metal |
| Heater | 6 kW Harvia electric heater with stones, included (model not named by SunRay) |
| Power draw | 8,000 W as SunRay lists it; this does not match the 6 kW heater, so we confirm the rating with SunRay before the circuit is sized |
| Maximum temperature | 180°F (SunRay) |
| Controls | Not described by SunRay for the Cayman |
| Lighting | Ambient dome lighting |
| Electrical | 240 V (SunRay lists 220 V), 50/60 Hz, 40 A dedicated circuit as SunRay lists it; SunRay does not state whether it ships with a plug or is hard-wired |
| Weight | 810 lbs (SunRay's listed shipping weight) |
| Warranty | 10-year structural; 1-year parts and electronics (SunRay warranty certificate); residential use only |
Can you assemble the SunRay Cayman yourself?
The cabin, yes; the 240 V connection, no. SunRay says its saunas are pre-assembled at the factory and broken down into panels for shipping, that two people are needed for the panel lifts, and it names a screwdriver as the tool. SunRay has not yet published an assembly manual for the Cayman, so there is no model-specific build sequence or foundation specification yet; contact us before delivery if you want to go through the assembly instructions SunRay supplies. The electrical connection is work for a licensed electrician.
Before the sauna arrives
- Prepare the base. SunRay has not published foundation requirements for the Cayman; its manuals for its other outdoor saunas call for a sturdy, level surface such as a concrete pad or a wood deck, and say the sauna should never sit directly on the ground. Size the base and the site for the 85" × 69" roof footprint, and contact us to confirm before you build it.
- Have a licensed electrician run a dedicated 240 V circuit to the site once we have confirmed the rating with SunRay, which lists 40 A.
- Plan how the boxed panels will get from the curb to the base. See Shipping below.
Tools you supply
A screwdriver (the tool SunRay names) and a second pair of hands for the panel lifts.
What electrical service does the SunRay Cayman need?
A dedicated 240 V circuit, which SunRay lists at 40 A. 240 V is the same kind of supply an electric clothes dryer uses; SunRay lists it as 220 V, 50/60 Hz. Nothing else can share the circuit, and if your electrical panel has no room for another 240 V breaker, your electrician may need to upgrade it before delivery.
SunRay's listed figures do not agree with each other: SunRay names a 6 kW heater but lists the Cayman's power draw as 8,000 W alongside the 40 A circuit. Because that decides the breaker and wire size, we confirm the rating with SunRay before your electrician sizes the circuit. SunRay does not say whether the Cayman ships with a plug or is meant to be hard-wired, so a licensed electrician makes and confirms the connection; contact us before you order and we will go through the requirements with you.
How do you look after the SunRay Cayman outdoors?
Reseal the exterior once a year. SunRay's warranty certificate makes annual resealing a condition of cover for outdoor saunas sold without a weather cover, and SunRay lists no weather cover with the Cayman. Clean the interior only with a water-soluble cleaning solution suitable for unfinished wood, as the certificate specifies; SunRay's warranty also treats surface cracks and minor blemishes in the wood as normal rather than defects.
How is the SunRay Cayman delivered?
The SunRay Cayman ships by LTL freight, with its panels boxed and strapped to a wooden pallet, and SunRay lists its shipping weight at 810 lbs. Delivery is curbside with a lift gate, which lowers the shipment to the driveway; moving it from there to the base is up to you, so plan the route before the truck arrives.
| Freight type | LTL truck; boxed panels on a wooden pallet |
|---|---|
| Delivery point | Curbside, lowered to the driveway by lift gate |
| Shipping weight | 810 lbs (SunRay) |
| Shipping cost | Free within the contiguous US |
| Appointment | Required; someone must be present to inspect and sign |
The carrier will reach out to book the delivery appointment once the shipment reaches their local terminal.
Inspect the shipment before you sign. SunRay's warranty excludes freight damage caused by the carrier, so note any visible damage on the delivery receipt, photograph it, and contact us before you start assembly. SunRay's delivery policy asks for internal damage found after unpacking to be reported within 3 business days of delivery.
SunRay has not yet published a manual for the Cayman, and none of the manuals on SunRay's support page names the 400D7; we send the assembly instructions SunRay supplies, and you can contact us to review them before delivery. SunRay's warranty certificate sets out the 10-year structural and 1-year parts and electronics cover, and the annual exterior resealing it requires for outdoor saunas without a weather cover.
SunRay Saunas Warranty
This warranty covers all SunRay branded saunas purchased directly from SunRay Saunas or any of its authorized affiliates. This warranty is non-transferable.
Structural Warranty — 10 Years
SunRay warrants the sauna structure against manufacturer defects in materials and workmanship for 10 years from the date of purchase.
What's covered:
- Wooden sauna panels, flooring, ceiling, and glass
- Replacement parts necessary for repair
- If a structural defect cannot be remedied by a replacement part, SunRay may send a full replacement sauna at its sole discretion
Note: Surface cracks in the wood and minor blemishes are normal characteristics of natural wood and are not considered defects.
Parts & Electronics Warranty — 1 Year
All sauna parts, including the heater and electrical components, are guaranteed against defects in materials and workmanship for 1 year from the date of purchase.
- Covers replacement parts only
- Labor costs for replacing a part are not covered
Warranty Terms
-
Applies to the original customer at the original delivery address only
-
Customers must have written consent from SunRay before proceeding with any warranty repair to be reimbursed
-
SunRay has sole responsibility for determining the cause and nature of any warranty claim
-
If a replacement sauna is provided, the customer is responsible for assembly/installation costs of the new unit
What Is NOT Covered
This warranty is voided if the sauna has been subjected to:
- Alteration, neglect, misuse, or abuse
- Freight damage caused by the carrier
- Accidents or acts of God
- Installation, operation, or maintenance not in accordance with the owner's manual
- Commercial use — saunas used in a commercial setting are excluded from all warranty coverage
Disclaimers
- SunRay shall not be liable for any incidental or consequential damages, including loss of use or cost of removal
- Liability under this warranty shall not exceed the original purchase price
- Warranty coverage begins on the original date of purchase and does not extend beyond the stated periods for any reason
Filing a Claim
To file a warranty claim, contact the SunRay Claims Department:
Phone: 800.976.5530
Electrical Requirements
Indoor traditional saunas require a dedicated 240V circuit in order to accommodate the high heat output of the heater. Please reference the product specification sheet to determine the specific requirements for your sauna.
Ventilation Requirements
Indoor traditional saunas are equipped with an air vent in the ceiling. This air vent is designed to help circulate heat throughout the sauna during the heat-up phase and to allow moisture to leave the sauna if you are adding humidity and using it as a steam sauna. The sauna cabin air vent also allows you to lower the sauna temperature without opening the door if the temperature inside the sauna becomes too hot.
Maximum Temperature
SunRay indoor traditional saunas have a maximum operating temperature of 170 degrees Fahrenheit. The normal operating range is 160-170 degrees Fahrenheit.
Traditional Sauna Shipping
All traditional saunas are shipped via truck freight with curbside and lift-gate delivery service unless otherwise specified. SunRay traditional saunas and steam saunas are shipped on a wooden pallet with removable bracing to protect the sauna boxes. Please contact us if you have special requirements for delivery. The trucking company will call you to schedule a delivery appointment.
Sauna Warranty
SunRay home saunas carry a 10-year structural warranty and 1-year parts warranty. All SunRay sauna parts, including electronic parts and the electric heater, are guaranteed for 1 year against defects.
Electrical Connection
Indoor traditional saunas for the home come with a power cord attached to the heater. The power cord does not have a plug. It is designed to be hard-wired into a junction box or you can put a plug on the end of the power cord. Please note that the power requirements differ by sauna model. Consult your traditional sauna user manual for the specific power requirements.
Assembly and Installation
An indoor traditional sauna is easily assembled by two adults. The typical assembly time is 1 hour. No special tools are required for the sauna to be assembled.
Cleaning Your Home Sauna
Your home sauna should be cleaned a minimum of every 3-4 months or more frequently depending on usage. To clean the interior of your home sauna, use a mixture of baking soda and water (3 teaspoons baking soda to 1 gallon of warm water). Using a clean towel, wipe down the interior of the sauna, focusing on where sweat accumulates. Let the area dry with the sauna door open. Use a standard ammonia-based glass cleaner to clean the sauna doors and windows.
Traditional Sauna Origin
SunRay traditional sauna cabins are constructed from Hemlock or Cedar wood imported from Canada. SunRay's manufacturing facility is in China and its distribution facility is in the United States. Warranty claims are handled by SunRay Saunas, based in Richmond, VA, and Topture helps you coordinate them.
Sauna Specification Sheets
Each SunRay sauna has a specification sheet with all the details of the kit, including the power requirements. Contact us if you would like a copy.
Placing an Indoor Sauna Outdoors
SunRay indoor traditional saunas are not rated for outdoor use. They have an open top that is not protected from the elements. If you place the indoor sauna outdoors, it must be covered and protected from the elements. Indoor saunas that are placed outdoors will not be covered under SunRay's sauna warranty.
Sauna Heating Time
The average heating time for traditional home saunas ranges between 30-45 minutes depending on the room temperature, size of the sauna, and the heater type.
Ceiling Clearance
You need at least 3-4 inches between the top of the home sauna and the ceiling. This allows the electrical components on the top of the sauna to receive the appropriate amount of airflow.
Sauna Stones
SunRay indoor traditional saunas come with heater stones that sit on top of the heater elements. The heater stones are used to help radiate heat throughout the sauna and can be used to create humidity inside the sauna. DO NOT pour excess water on the heater stones as it will cause damage to the heater. To create humidity in the sauna, simply drizzle a small amount of water over the stones once they are hot.
Sauna Heater Placement
All indoor traditional saunas are equipped with either a wall mounting bracket or cradle for the heater to sit in. DO NOT place the sauna heater directly on the floor as it could become a fire hazard. The sauna must be elevated off the floor to create airflow through the heating elements.
Sauna Lighting
All indoor traditional saunas come with ambient dome lighting. Saunas with dome lighting can be connected to the heater so that the light turns off when the heater turns off. Alternatively, you can wire the lighting separately on its own switch. Consult your sauna heating wiring guide for instructions on how to wire your sauna light into the heater.





