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135㎡ Top Floor Renovation Preparation Guide

Water/Electricity Phase + Smart Home + Appliance Selection

Property Background: 135m², 6th floor (top floor), Jinzhong, Shanxi
Current Stage: Design confirmation → Water/electricity renovation
Document Date: 2026-03-05

Part 1: Water/Electricity Phase Checklist

1.1 Design Confirmation Items

Space Planning

  • Finalize room layout and furniture placement
  • Confirm window treatments (curtain box depth ≥15cm for dual tracks)
  • Determine air conditioning type (central AC vs split units)
  • Plan ceiling height and design (especially for top floor)
  • Confirm kitchen layout (L-shape/U-shape/island)
  • Finalize bathroom layout (wet/dry separation)

Top Floor Special Considerations

  • Waterproofing quality (roof terrace/balcony)
  • Heat insulation measures
  • Solar panel placement (if applicable)
  • Elevator access for large items
  • Water pressure stability (install booster pump if needed)
  • Drainage system inspection

1.2 Water/Electricity Preparation

Electrical Points

Area Item Quantity Notes
Living Room TV area sockets 4-6 Behind TV cabinet
Living Room Curtain motors 2 Both sides of curtain box
Living Room AC (central) 1 Smart control panel
Living Room Floor lamp 2 Near sofa
Living Room Robot vacuum 1 Corner, away from water
Master Bedroom Bedside (each side) 2 For phone charging
Master Bedroom Curtain motor 2 Both sides
Master Bedroom AC 1 Wall-mounted
Master Bedroom Wardrobe light 1 Inside wardrobe
Kitchen Refrigerator 1 Dedicated circuit
Kitchen Dishwasher 1 16A, dedicated circuit
Kitchen Oven/Steam oven 1 16A, dedicated circuit
Kitchen Garbage disposal 1 Under sink
Kitchen Water purifier 1 Under sink
Kitchen Range hood + stove 1 Smart linkage
Kitchen Dishwasher 1 16A dedicated
Kitchen Ceiling light 1 Smart control
Kitchen Under-cabinet light 1 Motion sensor
Bathroom 1 Smart toilet 1 Waterproof socket
Bathroom 1 Towel warmer 1 Timer control
Bathroom 1 Exhaust fan/heater 1 Ceiling mount
Bathroom 1 Mirror light 1 Above mirror
Bathroom 2 Water heater 1 16A, dedicated circuit
Balcony Electric clothes rack 1 Ceiling mount

CRITICAL: All light switch boxes must have NEUTRAL WIRE (零线) for smart switches!

Water Points

  • Kitchen: hot/cold for sink, dishwasher, purifier
  • Bathroom 1: toilet, sink, shower
  • Bathroom 2: water heater, washing machine
  • Balcony: washing machine, floor drain
  • Water heater location confirmed (storage tank vs instant)
  • Water pressure test (>0.3MPa recommended)

Network Points (CAT6 recommended)

  • Living room: 2-3 ports (main router, TV, backup)
  • Master bedroom: 1 port
  • Study room: 1-2 ports
  • Weak current box: enlarge to 400×300mm

Part 2: Smart Home Preparation

2.1 Platform Selection

Option A: Xiaomi Ecosystem (米家)

Pros:

  • Cost-effective (50-70% cheaper than Huawei)
  • Wide product range (3000+ devices)
  • Mature automation
  • Good community support

Cons:

  • Requires neutral wire for most switches
  • Some devices need gateway
  • Cloud dependency

Budget: ¥8,000-15,000 (basic), ¥15,000-30,000 (advanced)

Option B: Huawei Ecosystem (华为全屋智能)

Pros:

  • Superior stability (PLC bus)
  • Professional installation
  • Premium build quality
  • Local processing

Cons:

  • Higher cost (2-3x Xiaomi)
  • Limited third-party devices
  • Requires professional design

Budget: ¥30,000-80,000+

Recommendation: For 135m² top floor, Xiaomi ecosystem offers best value.

2.2 Smart Device Recommendations

Xiaomi Ecosystem (Best Value)

Smart Switches (must have neutral wire)

  • Model: Aqara Wall Switch H1 (Double/Triple)
  • Price: ¥150-250 each
  • Compatibility: Mi Home, HomeKit

Curtain Motors

  • Model: Aqara Curtain Motor A1
  • Price: ¥600-800 each
  • Track length: custom order

Smart Door Lock

  • Model: Xiaomi Smart Door Lock Pro
  • Price: ¥1,200-1,600
  • Features: fingerprint, NFC, Bluetooth

Smart Speakers (Gateways)

  • Model: Xiao AI Speaker Pro
  • Price: ¥400-600
  • Features: Built-in gateway, IR control

Part 3: Appliance Selection Guide

3.1 Refrigerator (Kitchen)

Optimal Parameters for 135m² (3-4 people):

  • Capacity: 450-550L
  • Type: French door or side-by-side
  • Cooling: Variable frequency compressor
  • Energy: Level 1 (≤0.8kWh/24h)
  • Smart: WiFi, app control

Recommendations:

Mid Tier (¥5,000-8,000)

  • Xiaomi Mijia BCD-500WMSA
    • Price: ¥5,999
    • Capacity: 500L French door
    • Energy: Level 1, 0.72kWh/24h
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.2 Washing Machine + Dryer

Optimal Parameters:

  • Washer capacity: 10-12kg
  • Dryer capacity: 9-10kg
  • Type: Front load (stackable)
  • Motor: BLDC inverter

Recommendations:

Mid Tier (¥6,000-10,000 pair)

  • Xiaomi Mijia MD100VT715WD + MD100VT715WT
    • Price: ¥8,499 (pair)
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.3 Air Conditioning

Optimal Parameters for 135m² (Top Floor):

  • Cooling capacity: 200-240m² equivalent
  • Type: Multi-split recommended
  • Energy: Level 1, inverter
  • SEER: ≥5.0

Recommendations:

Mid Tier (¥22,000-30,000)

  • Midea MDS-140W/BN1-C8 (一拖五)
    • Price: ¥24,999
    • Configuration: 1×5HP + 5 indoor units
    • SEER: 5.4
    • Smart: M-Smart app (IR/smart plug control)

3.4 Water Heater

Optimal Parameters for Top Floor:

  • Type: Gas instant recommended
  • Capacity: 16L/min
  • Features: Constant temperature, safety shutoff

Recommendations:

Mid (¥2,500-4,000)

  • Xiaomi Mijia JSQ34-MJ02
    • Price: ¥2,999
    • Capacity: 16L/min
    • Features: Zero cold water, CO monitoring
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.5 Range Hood + Gas Stove

Optimal Parameters:

  • Suction power: ≥22m³/min
  • Pressure: ≥1000Pa (for top floor)
  • Noise: ≤52dB
  • Smart: WiFi, auto-start

Recommendations:

Mid (¥3,500-5,500)

  • Xiaomi Mijia MJ05C + MJ01
    • Price: ¥3,999 (set)
    • Suction: 23m³/min
    • Pressure: 1050Pa
    • Features: Gesture control, AI smoke detection
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.6 Dishwasher

Optimal Parameters:

  • Capacity: 13-16 place settings (for 3-4 people)
  • Type: Built-in
  • Features: High-temp disinfection (75°C+), drying

Recommendations:

Mid (¥4,500-6,500)

  • Xiaomi Mijia WQP12-7602
    • Price: ¥4,999
    • Capacity: 13 place settings
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.7 Robot Vacuum

Optimal Parameters for 135m²:

  • Type: LiDAR navigation + camera
  • Suction power: 3000-5000Pa
  • Battery: ≥5200mAh
  • Features: Mopping, self-emptying

Recommendations:

Mid (¥2,500-4,000)

  • Xiaomi Mijia Ultra 2
    • Price: ¥3,499
    • Suction: 5000Pa
    • Features: Auto-empty, LiDAR, camera
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

3.8 Smart Toilet

Optimal Parameters:

  • Features: Auto flush, heated seat, bidet, dryer
  • Water temp: Adjustable (30-40°C)
  • Smart: App control, auto-open/close lid

Recommendations:

Mid (¥2,500-4,000)

  • Xiaomi Mijia Smart Toilet Pro
    • Price: ¥3,299
    • Features: Full automation, UV sterilization
    • Smart: Mi Home native ⭐⭐⭐⭐⭐

Part 4: Budget Summary

Complete Xiaomi Ecosystem Bundle

Category Estimated Total
Smart Home System (switches, sensors, curtains, lock) ¥15,000-18,000
Core Appliances (Xiaomi bundle) ¥37,000-40,000
Total Smart Home + Appliances ¥52,000-58,000

Price Comparison

Appliance Budget Mid-Range Premium
Refrigerator ¥4,000-5,000 ¥5,500-8,000 ¥10,000-15,000
Washer + Dryer ¥4,500-5,500 ¥7,500-10,000 ¥15,000-20,000
AC System ¥16,000-20,000 ¥22,000-30,000 ¥35,000-45,000
Water Heater ¥2,000-2,500 ¥2,800-4,000 ¥4,500-6,000
Range Hood + Stove ¥2,500-3,500 ¥3,800-5,500 ¥6,000-8,000
Dishwasher ¥3,500-4,500 ¥4,800-6,500 ¥7,000-10,000
Robot Vacuum ¥2,000-2,500 ¥3,000-4,000 ¥5,000-6,000
Smart Toilet ¥2,000-2,500 ¥3,000-4,000 ¥5,000-8,000
TOTAL ¥37,000-45,000 ¥52,000-72,000 ¥87,000-118,000

Part 5: Top Floor Special Considerations

5.1 Waterproofing

  • Roof inspection (if accessible)
  • Balcony waterproofing (2 layers minimum)
  • Bathroom waterproofing (wall: 1.8m, floor: full coverage)
  • 48-hour water retention test
  • Waterproofing warranty (≥5 years)

5.2 Heat Insulation

  • Ceiling insulation (consider thermal insulation layer)
  • Window selection (double/triple glazing, Low-E)
  • Curtain choice (thermal blackout curtains)
  • AC sizing (+10-15% capacity for top floor)

5.3 Water Pressure

  • Test current water pressure
  • Install booster pump if <0.2MPa
  • Consider water tank (if pressure unstable)

Part 6: Pre-Wire Checklist Summary

Must Complete Before Plastering

  1. ✅ All switch boxes with neutral wire
  2. ✅ Deep boxes (≥50mm) for smart switches
  3. ✅ Curtain motor power (both sides)
  4. ✅ Central AC control wires
  5. ✅ Network cables (CAT6) to all rooms
  6. ✅ Enlarged weak current box
  7. ✅ Gas detector position (kitchen)
  8. ✅ Water leak sensor positions
  9. ✅ Outdoor camera power + network
  10. ✅ Video doorbell power

Document Version: 1.0
Last Updated: 2026-03-05
Purpose: Comprehensive renovation guide for 135m² top floor with smart home integration

Next Steps:

  1. Review water/electricity plan with contractor
  2. Confirm neutral wire installation at ALL switch locations
  3. Order deep switch boxes (≥50mm)
  4. Finalize smart home platform (recommend: Xiaomi)
  5. Create account and test Mi Home app
  6. Order core appliances during promotional period