Gas
- Cheaper set-up costs
- They consume 20% to 30% less energy than storage tank models
- Instant heating – They provide a endless supply of hot water
- Compact and easy to install
- They can be mounted on a wall Indoors or outdoors
- Sized to fit your needs
- Easy to access and repair
- Can run on Natural Gas or LPG
Electrical Geysers
- Expensive to run
- Not efficient – no instant heat
- Waste up to 15% of energy through radiant heat loss
- Water storage tanks are not ideal as they burst
- Susceptible to power outages
Solar
- Is off the grid but weather dependant
- High upfront cost
- Weather dependant
- Water storage tanks take up space and can burst
- Not efficient – no instant heat
Heat pumps
- High upfront cost
- Difficult to install
- Uses electricity – not off the grid
- Noisy to run
- Not efficient in cold weather