11 Saunas, sauna bath installations, sanitary installations in the nature of steam rooms, bath installations, bathtubs and whirlpool baths, hot tubs, wood-fired hot tubs, chiller tubs in the nature of chilled pools and cold plunge pools, showers, whirlpools, swim spas in the nature of heated pools, whirlpool jets, heat pumps, water purification installations, water sterilisers, LED underwater lights, fitted spa covers