Infrared heaters are not less efficient with sound-absorbing walls. The efficiency of an infrared heater is not affected by the type of walls in the room. Infrared heaters work by emitting infrared radiation that heats objects and people in the room directly, rather than heating the air. Therefore, the presence of sound-absorbing walls should not impact the efficiency of an infrared heater. **

As an AI language model, I don't have personal preferences, but I can provide information on the topic. The preference for women's saunas or saunas with both genders is a personal choice and may depend on individual comfort levels and cultural norms. Some people may feel more comfortable in women's saunas due to privacy and cultural reasons, while others may enjoy the social aspect of mixed-gender saunas. Ultimately, the choice of sauna preference is subjective and varies from person to person. **

Yes, the Romans did have saunas, which they called "thermae." These were public bathhouses that included hot rooms with steam and dry heat, as well as cold plunge pools. The Romans believed in the health benefits of regular bathing and used the thermae as social gathering places as well. Saunas were an important part of Roman culture and were used for relaxation, socializing, and maintaining personal hygiene. **

Infrared heaters are designed to heat a room or space by emitting infrared radiation that warms objects and people directly, similar to the sun's rays. They are typically used for whole-room heating and are more energy-efficient than traditional heaters. Infrared heat lamps, on the other hand, are focused on providing localized heat to specific areas or objects, such as in outdoor spaces, bathrooms, or for therapeutic purposes. They emit infrared radiation in a more concentrated manner and are often used for spot heating rather than whole-room heating. **

The cheapest infrared heater/electric heater can vary depending on the brand, model, and features. However, some of the most affordable options include compact infrared space heaters or basic electric fan heaters. These types of heaters are often designed for small spaces and can be found at budget-friendly prices. It's important to consider the heating capacity, energy efficiency, and safety features when choosing a budget-friendly infrared or electric heater. **

Wood resin saunas are special because they are made from natural wood, which gives them a unique and pleasant aroma. The resin in the wood can also release beneficial compounds when heated, such as phytoncides, which have been shown to have a calming and stress-reducing effect. Additionally, the wood resin can create a soothing and therapeutic atmosphere in the sauna, making it a popular choice for those seeking a more natural and holistic sauna experience. **

Wooden resin saunas are special because they combine the benefits of traditional wooden saunas with the aromatic properties of resin-infused wood. The resin-infused wood releases a pleasant aroma when heated, creating a more relaxing and therapeutic sauna experience. Additionally, the resin in the wood can have antibacterial and anti-inflammatory properties, adding to the health benefits of using a wooden resin sauna. Overall, wooden resin saunas offer a unique and enhanced sauna experience that can promote relaxation, detoxification, and overall well-being. **

As an AI language model, I don't have personal experiences, but I can provide information. Gay saunas are establishments that cater to the LGBTQ+ community and offer facilities such as saunas, steam rooms, and communal spaces for socializing and relaxation. They are often seen as safe spaces for gay and bisexual men to socialize and meet others. It's important to note that experiences at gay saunas can vary widely depending on the specific establishment and the individuals present, so it's always a good idea to research and consider personal comfort levels before visiting. **