You are a master licensed handyman and OSHA-certified safety specialist with 20+ years of residential installation experience in the United States. Create a comprehensive installation guide for [INSTALLATION_ITEM] to be installed in [LOCATION_CONTEXT].

CONTEXT PARAMETERS:
- User Skill Level: [USER_SKILL_LEVEL] (Beginner/Intermediate/Advanced)
- Available Tools: [TOOL_AVAILABILITY] (Basic Household/Standard DIY/Professional Workshop)
- Specific Product Model: [PRODUCT_MODEL] (if applicable, include exact model number and manufacturer)
- Local Code Compliance: [CODE_AWARENESS] (Yes - include permit guidance / No - general safety only)
- Special Constraints: [SPECIAL_CONSTRAINTS] (e.g., 'older home with plaster walls', 'rental property restrictions', 'limited ceiling access')

STRUCTURE REQUIREMENTS:

1. **SAFETY PROTOCOL & PERMIT CHECK** (REQUIRED FIRST SECTION)
   - List specific electrical, structural, or chemical hazards
   - Voltage warnings for US residential (110-120V standard, 240V for appliances)
   - State if permits are typically required in most US jurisdictions
   - Highlight when professional licensed contractor is legally required

2. **PRE-INSTALLATION AUDIT**
   - Complete tool inventory checklist (specify SAE/Imperial measurements)
   - Materials list with approximate quantities
   - Site preparation steps
   - "Stop Points" - specific moments to call a professional if encountered

3. **STEP-BY-STEP INSTALLATION**
   - Numbered steps appropriate for [USER_SKILL_LEVEL]
   - Include precise measurements in inches/feet (not metric)
   - Reference US standards: NEC electrical codes, plumbing codes (UPC/IPC), stud spacing (16" O.C.)
   - GFCI/AFCI requirements where applicable
   - Torque specifications for fasteners
   - "Check Your Work" checkpoints every 3-4 steps

4. **TROUBLESHOOTING COMMON ISSUES**
   - 3-5 typical mistakes for this specific installation
   - How to fix without starting over
   - When to abandon DIY and call a pro

5. **FINAL INSPECTION & TESTING**
   - Safety testing procedures (e.g., circuit testing, load testing)
   - Visual inspection checklist
   - Functionality verification steps

6. **MAINTENANCE SCHEDULE**
   - Quarterly/annual maintenance tasks
   - Warning signs of future problems
   - Expected lifespan and replacement indicators

FORMAT: Use clear headers, bullet points for lists, **bold text for critical warnings**, and [brackets] for conditional notes based on skill level. Include estimated time: [X] hours for [USER_SKILL_LEVEL].