Wood-fired hot tubs are gaining popularity among homeowners seeking a 'rustic' outdoor living experience, but safety experts are raising concerns about potential hazards including overheating and flammability.
These eco-friendly models, which operate without electricity using a wood-burning stove, have been embraced by various public figures, with some costing up to £8,000.
"They need a little more TLC than electric hot tubs as you're dealing with a live fire as well as hot water," said Andy Brooker, a luxury holiday property expert. He emphasized that these tubs "shouldn't be treated as something guests can simply light and forget about."
Key safety considerations include clear instructions for users on how to light, manage the fire, and determine when it is safe to enter the water. Overfilling with wood can lead to excessive heat, and the tubs should never be left unattended, especially around children and pets.
Proper installation and maintenance are also crucial. Owners must ensure the surrounding areas are clear of flammable materials to prevent fires. Unlike electric models, wood-fired tubs lack automatic temperature controls, making overheating a potential risk if users are not vigilant. Installing a thermometer and providing guidance on safe bathing temperatures, hydration, and breaks are recommended.
Adequate lighting around the tub and a clear, unobstructed path to and from it are important for safety, particularly for use after dark.
While some users have noted slow heating times, especially in colder weather, and the cost of firewood, designers suggest these tubs can be an attractive feature when integrated into a garden scheme. "Their appeal comes from the fact that they feel more natural and tactile than many contemporary spa options," noted Sergiu Tulbur, Head of Product Innovation and Design at OPA Living. He advises integrating them with timber decking, natural stone, or planting to make them feel like part of the landscape.
Interior designers also point to the aesthetic appeal of the timber barrel and visible stove, which can give the tubs an architectural quality. However, they caution against overly orange-toned timber or bulky pipework, which can make them appear less refined. Anchoring the tub with a hedge or timber screen and maintaining a visually quiet surrounding area with materials like gravel or plain timber decking can enhance their look.
"I do think they're fashionable, but I'd say they're fashionable because the shape and materials already have a certain timelessness rather than because they look obviously trendy," said Blanca Sanchez, Director at Halo Design Interiors. She added that the value of a wood-fired tub depends on the owner's preference for a slower, more tactile experience and their willingness to undertake the necessary maintenance.
Brands like Forestflame, Royal Tubs, and Skargards offer various models, emphasizing the natural aesthetic and a connection to the outdoors, with prices ranging from approximately £4,000 to £6,000 for deluxe options.