Detailed Construction Process of Liaoyang Hanjimjilbang (Korean Sauna) I. Preliminary Planning and Design Site Selection and Space Assessment Applicable Scenarios: Residential (3-8㎡), Commercial (15-50㎡), or Comprehensive Wellness Centers (requires integration with SPA and shower areas). Basic Requirements: Ceiling height ≥2.3 meters, wall load-bearing capacity ≥150kg/㎡, independent electrical circuit (220V/380V), pre-installed drainage system. : Avoid proximity to water sources, gas pipelines, or wooden structures (additional fireproofing required). Type Selection and Functional Design Main Types: Far-infrared Hanjimjilbang (heated by far-infrared light wave tubes/far-infrared heating cables, temperature 40-60℃) Salt Therapy Hanjimjilbang (Himalayan salt bricks + negative ion system) Jade Hanjimjilbang (paved with Xiuyan jade/maifan stone, magnetic therapy function) Smart Configuration: Automatic temperature and humidity control. II. Material and Equipment Procurement Core Material List Category Recommended Material Technical Parameters Insulation Layer Extruded Polystyrene Board (XPS) Thickness ≥2cm, Fire Rating B1 Heating System Far-infrared Light Wave/Alloy Heating Cable Power 450-550W/㎡, IP67 Waterproof Decorative Surface Fir/Scots Pine (Residential), Salt Brick Moisture Content ≤12%, Formaldehyde-Free Auxiliary Equipment Electrical System: Leakage Protection Circuit Breaker (30mA operating current), Thermal Fuse (automatic cutoff at 70℃). III. Construction Process (Taking Far-infrared Hanjimjilbang as an Example) Foundation Construction Phase (3-5 days) Insulation Layer Installation: XPS board splicing, protective layer installation. Circuit Pre-embedding: Zoned wiring for heating system (each zone ≤8㎡), reserve junction box for thermostat. Main Installation Phase (7-10 days) Heating System Installation: Heating system setup, protective base layer installation. Decoration Work: Exterior finishing of Hanjimjilbang (leave 2mm expansion joints), salt brick walls require fixed wooden framing. Equipment Integration: Smart constant temperature control system, infrared temperature sensor (error ±2℃). IV. Debugging and Acceptance Standards Functional Testing Heating Test: Room temperature rises from 20℃ to 55℃; it may be slightly slower immediately after construction, please be patient. Safety Inspection: Insulation resistance measured with megohmmeter ≥50MΩ, leakage current <0.75mA. Energy Efficiency Evaluation: Continuous operation for 8 hours consumes ≤15 kWh (standard 10㎡ room). V. Operation and Maintenance Key Points Daily Management Open the door after daily use to release moisture. Wipe the decorative surface monthly with a slightly damp cloth.