Find the documents for your Eclipse 2 or Eclipse 4, prepare your installation space, and get help with heating, lights, app setup and care.
Find your manual and spec sheet
| Your sauna | Assembly and installation | Spec sheet |
|---|---|---|
| Eclipse 2 | Assembly Guide — September 2026, v3.0 (PDF) | Eclipse 2 spec sheet — 2025 edition (PDF) |
| Eclipse 4 | Installation / Instruction Manual — April 2025, v1.0 (PDF) | Contact us for specifications. |
For operating instructions, safety information and ongoing care, open the Eclipse User Guide for both models. You can also find these assembly documents in Product manuals & assembly guides.
Use the assembly document for the full procedure and diagrams. Before installation or use, read its safety instructions and the User Guide. If your panels or controls differ from the illustrations, contact us to identify the instructions for your unit.
Prepare the room and the route before delivery
Choose a dry, level indoor location with ventilation and temperature control. Leave room for the door to open, for assembly, and for access to the ceiling connections. Do not install either model in a tight, unventilated closet or cabinet.
Check three separate things: where the crate will be opened, how the individual pieces will reach the room, and how much space the assembled sauna needs. A cabin that fits in the room may still have panels that cannot turn through a stairwell.
| Planning check | Eclipse 2 | Eclipse 4 |
|---|---|---|
| Assembled exterior, across the front × depth × height | 51.5 × 47.2 × 76.7 inches | 94.4 × 55.1 × 76.7 inches |
| Moving pieces into the room | Check the route for the front and back panels, each 51.5 inches wide × 76.7 inches tall. The shipping crate is a separate measurement. | Check the floor, ceiling and front-frame configuration before planning a tight turn. Send us route measurements and photos if access is restricted. |
| Clearance beyond the cabin | Allow at least 25 inches in front for the door and 12–14 inches above for assembly access. Check page 7 of the Assembly Guide for the separate requirements beside bare walls, combustible coverings and inside alcoves. | Confirm the clearances for your unit with us before committing to an alcove or enclosed installation. |
For Eclipse 2, plan for at least two people and about two hours, including uncrating. Have work gloves, a pry bar, a hammer for uncrating, a rubber mallet, a Phillips screwdriver or drill with a Phillips bit, a level and a ladder. The M4 hex key is included. Keep room nearby to stage and support the panels.
Eclipse 4 assembly also includes glass and door installation, with a helper holding the door and a ladder needed for the ceiling panel. Review those steps with your installer before delivery.
Inspect the crate before opening it and check the components as you unpack. If something is damaged or missing, stop assembly and contact us with your order number and photos.
Arrange the electrical connection before assembly
Eclipse 2 uses 120V; Eclipse 4 uses 240V. Give your electrician the exact model name and its installation documents. Both need a dedicated, GFCI-protected circuit installed by a licensed electrician; a standard household outlet is not a substitute.
| Detail to discuss with your electrician | Eclipse 2 | Eclipse 4 |
|---|---|---|
| Supply | 120V, dedicated 30A circuit | 240V, dedicated circuit; confirm circuit and receptacle requirements for your unit before installation |
| Plug fitted to the sauna | NEMA L5-30P, twist-locking | NEMA L6-30P, twist-locking |
| Outlet planning | NEMA L5-30R receptacle. Page 7 of the Assembly Guide shows its required location behind the sauna. | Have your electrician confirm the matching receptacle with Sun Home before installation. |
The plug attached to the sauna and the receptacle installed in your wall are different parts. Do not use a plug designation as an outlet specification.
For Eclipse 2, connect directly to the specified receptacle without an extension cord, power strip or adapter. Follow the model-specific assembly sequence before applying power. Unplug the sauna before touching cables or making connections. Never operate the controls with wet hands.
The display is on—how do I start heating?
Turning on the display and starting the heaters are separate actions. After installation and the required function checks are complete:
- Press Power to turn on the control panel.
- Set the temperature and session timer with their adjustment buttons.
- Use the heating button to start heating. On the Eclipse 2 September guide, this is Work, button 9. The Eclipse 4 v1.0 control diagram labels button 9 Far-Infrared Heating ON/OFF.
If your control panel does not match those illustrations, contact us before following a different button sequence. The display being lit, or a red-light panel being on, does not by itself confirm that the sauna heaters are running.
Room temperature and drafts affect warm-up. Check that heating is enabled and the door is closed if the cabin is warming slowly. Keep ventilation unobstructed. Avoid using a fixed warm-up time as a pass/fail test; if heating does not begin, use the checks below.
Read the User Guide's health and session-safety warnings before use. Stay hydrated, leave immediately if you feel dizzy or unwell, and keep electronics outside the sauna. Never leave it switched on unattended.
Heating, red light and room lighting
Match the controls to your manual edition. Eclipse 2 labels below follow the September 2026 v3.0 guide (pages 27–28); Eclipse 4 labels follow the April 2025 v1.0 manual (page 20). If your labels or lighting behavior differ, contact us to identify the instructions for your unit.
| Function | Control |
|---|---|
| Sauna heating | Heating/Work button on the sauna control panel, with temperature and timer settings |
| Red-light panels | Use the red-light panel's own RED / NIR controls. Follow the operating instructions supplied with your panel. |
| Ceiling color lighting | RGB (Eclipse 2 v3.0); RGB Color Adjustment (Eclipse 4 v1.0) |
| Under-seat and exterior lighting | Seat LED / Exterior Light (Eclipse 2 v3.0); Seat Panel Light / Eave Light (Eclipse 4 v1.0) |
The RGB ceiling light and the red-light panels have separate controls. Changing the ceiling color does not select RED or NIR on a panel. When finishing, stop sauna heating and switch off the red-light panels with their own controls.
Heaters and red-light panels become hot. Keep towels, clothing and packaging away from them, and do not touch their surfaces. Do not look directly into a red-light panel. If wearing goggles, sit safely away from the heaters first; remove the goggles before moving so you can see the hot surfaces. Read the full red-light safety instructions in the User Guide before use.
Do I need the app?
You can use the sauna's control panel without the app. If you want to connect the Sun Home Saunas app, have Bluetooth enabled on your phone and a 2.4 GHz Wi-Fi network available at the sauna. A 5 GHz-only network will not work.
- Download the Sun Home Saunas app from the App Store or Google Play and create your account.
- Turn on your phone's Bluetooth and connect it to the 2.4 GHz Wi-Fi network.
- In the app's Home tab, choose Add device. Turn on the sauna to enter pairing mode.
- Choose Continue and enter your Wi-Fi details.
- Select the sauna when it appears, give it a name, and open it from the Home screen.
For the illustrated walkthrough, open Sun Home Saunas App in the Eclipse User Guide. Keep your phone outside the heated cabin.
Care after each session
- Stop heating, turn off the sauna and switch off the red-light panels. Unplug the sauna when it is not in use.
- Dry the backrests, bench and floor with a towel or a lightly damp cloth. Keep clear of hot heaters and panels.
- Leave the door slightly open so the interior can air out and dry completely.
Do not spray water, make steam or use a wet mop inside. Avoid bleach, abrasive pads and harsh chemical cleaners. Keep towels off the heaters. The User Guide's Care & Maintenance section covers periodic cleaning and inspections.
Check these before contacting support
| What you notice | Safe first check |
|---|---|
| No display | Check that the power cord is properly connected to the correct supply. For Eclipse 2, check that the twist-lock plug is locked and whether the breaker or GFCI has tripped. |
| Display on, but no heat | Check that the heating button is enabled, not just Power. If heating still does not begin, stop use and contact us. |
| App cannot find the sauna | Check Bluetooth, the 2.4 GHz Wi-Fi connection and that the sauna is powered on for pairing. |
| A light will not turn on | Match the light control to your manual edition, or use the red-light panel's own controls. If the controls differ or the light still fails, contact us. |
| Heating continues after switching off, or the sauna gets wet | Unplug it and stop use. Contact us before restarting. |
Do not open electrical housings, swap ceiling cables or replace parts as an initial troubleshooting step. Unplug before any cable or connector work; use the complete instructions and support guidance for your unit.
Call 844-728-6200 or email info@sunhomesaunas.com. Include your Eclipse model, order number, what happens when you use the controls, and photos of the display or affected part. For a delivery-access question, include the doorway, stairwell and turning-space measurements.