THE SYDNEY HOMEOWNER’S COMPLETE GUIDE TO HOT WATER SYSTEMS

1. Electric Hot Water Systems

These are common in:

• Apartments
  
• Older homes
  
• Budget installations
  

Pros:

• Low upfront cost
  
• Easy repairs
  
• Reliable
  

Cons:

• Higher running costs
  
• Slower recovery
  

2. Gas Storage Hot Water Systems

Very common in Inner West & Eastern Suburbs.

Pros:

• Faster recovery time
  
• Lower running cost than electric
  
• Works during hot water demand spikes
  

Cons:

• Requires gas supply
  
• Tanks eventually corrode
  

3. Gas Instantaneous (Continuous Flow) Systems

Popular across the North Shore, Hills District & newer estates.

Pros:

• Endless hot water
  
• Highly efficient
  
• Compact
  
• Very reliable
  

Cons:

• Requires correct gas line sizing
• Installation cost is higher

4. Heat Pump Hot Water Systems

Common in energy-efficient households.

Pros:

• Extremely efficient
  
• Cheaper long-term running
  

Cons:

• Higher upfront cost
  
• Noisy compressors
  

5. Solar Hot Water

Used in some parts of Western Sydney & South West Sydney.

Pros:

• Cheapest to run
  
• Rebates available
  

Cons:

• Weather-dependent
  
• Requires booster system
  

Repairs

• Minor repairs: $150–$350
  
• Valve replacement: $150–$300
  
• Element replacement: $180–$350
  
• Gas service: $150–$350
• Thermostat: $180–$320

Replacements

• Electric: $1,100–$2,200 installed
  
• Gas storage: $1,400–$2,800 installed
  
• Instantaneous gas: $1,800–$3,500 installed
  
• Heat pump: $2,800–$4,500 installed
  
• Solar: $3,500–$7,500 installed
  

Prices depend on:

• Brand
  
• System size
  
• Installation complexity
  
• Valve upgrades
  

Jayco Plumbing provides clear, upfront pricing — no hidden extras.