Description
Holl’s Moon 4 Person Infrared Sauna – Black Wood
The Holl’s Moon 4 is a four-person indoor infrared sauna featuring a distinctive circular design and a Black FSC Hemlock exterior. With a Ø180 cm footprint and a height of 196 cm, the sauna provides a shared seated space for up to four people.
The curved design incorporates 8mm tempered safety glass and an Abachi interior, creating the distinctive appearance of the Holl’s Moon range.
4620W Infrared Heating System
The Holl’s Moon 4 uses a 4620W infrared heating system consisting of:
- 4 full-spectrum quartz emitters
- 12 carbon heating panels
The quartz emitters provide Near-Infrared heat, while the carbon heating panels provide Far-Infrared heat. The 12 carbon panels are positioned around the curved cabin to distribute infrared heat throughout the seating area.
Circular 4 Person Design
Unlike a conventional rectangular four-person sauna, the Moon 4 uses a circular Ø180 cm layout designed to provide a more natural seating arrangement.
The circular configuration also allows the carbon heating panels to be positioned around the cabin for 360-degree coverage.
Smart Controls and Connectivity
The Holl’s Moon 4 includes integrated smart features, including Wi-Fi remote activation. This allows the heating system to be activated using a smartphone before entering the sauna.
The sauna also features touchscreen controls and an integrated Bluetooth audio system.
LED Ambient Lighting
Integrated lighting includes a Starry Sky LED ceiling together with hidden LED strips beneath the Abachi benches.
Technical Specifications
Model: Holl’s Moon 4 Black / HL-MOON4-BLK
Capacity: 4 persons seated
Dimensions: Ø180 cm x H196 cm
Total Power Output: 4620W
Heating System: 4 x Quartz + 12 x Carbon Panels
Exterior Timber: Black FSC Hemlock
Interior Timber: Abachi
Glass: 8mm tempered safety glass
Electrical Requirement: Hardwired dedicated electrical supply
Electrical Requirements
The Holl’s Moon 4 has a total power draw of 4620W, approximately 20.1A, and cannot be connected to a standard domestic 13A three-pin wall socket.
A dedicated hardwired electrical feed must be installed by a qualified electrician. The product information recommends a dedicated 32A radial circuit using 6mm² cable, subject to the cable run length and the electrician’s assessment.
A 32A double-pole rotary isolation switch and 30mA RCD protection are also specified.
Installation Space
The sauna has a Ø180 cm diameter. A minimum clearance of 190 x 190 cm is recommended for assembly and ventilation.
Due to the weight of the 8mm glass and Hemlock construction, the installation surface should be level and capable of supporting the sauna and its occupants.





















