You cannot use standard cold-water scuba gear for thermal diving. The "hot" element changes everything. If you are searching for equipment, here is your checklist:
Engineered for serious explorers, it is rated for depths up to 240 feet (approximately 73 meters). h2ogems scuba hot
(clear, calm, leader) said: “I sense a human in thermal danger. We must balance his temperature.” You cannot use standard cold-water scuba gear for