The Heritage Lumina TH is a premium 5.2-foot (1.6-meter) outdoor barrel sauna meticulously engineered for 2–3 people seeking a high-performance wellness sanctuary in compact residential spaces. Constructed entirely from advanced, thermally modified wood (Thermowood) for superior rot resistance and dimensional stability, this model is the ideal solution for homeowners requiring a fully enclosed, private environment that ensures maximum heat retention. Featuring a sleek brown tempered glass door and a black bitumen shingle roof for efficient water drainage, the Lumina TH balances traditional aesthetics with modern durability, including a comfortable Thermowood bench and Alder flooring. With a rapid one-hour heat-up time and a convenient flat-pack design for streamlined assembly, this sauna serves as the industry-standard choice for low-maintenance outdoor thermal therapy where space-efficiency and professional-grade insulation are primary requirements.