

Instant Electric Hot Water Systems
Instant electric hot water systems offer the luxury of on-demand hot water, ensuring you never have to wait for your shower or sink to heat up. At ASAP Trades, we recognise the critical need for reliable and efficient hot water. That’s why we offer 24/7 emergency plumbing services to address any issues with your instant hot water system and provide prompt solutions.
If you’re looking to upgrade, ASAP Trades has a range of top-quality instant electric hot water systems from leading brands to meet your specific needs. Our expert plumbers will assist you in selecting the best system for your home, ensuring you enjoy benefits like energy efficiency, a space-saving design, and continuous hot water. From the removal of your old system to the professional installation and testing of your new one, we guarantee a seamless transition.
With over 25 years of industry experience, ASAP Trades is a trusted name in hot water solutions across Perth. Whether you need a repair, installation, or upgrade, contact us now at 1300 ASAP 24 for a free, no-obligation quote and enjoy the convenience of instant hot water.

You’ve Got Questions, We’ve Got the Answers.
Read our most frequently asked questions
Instant electric hot water systems are cheaper to run than a storage tank as they only heat the water as you turn a tap on instead of trying to maintain the heat in a large tank.
Yes, you can absolutely replace it with an instant hot water system. However, instant hot water systems draw more power as they heat because they need to heat the water much faster. Because of this there may need to be some upgrades in regard to the electrical supply.
Instant hot water systems only heat the water as you need it, because of this they are much more efficient than a storage tank. Also, because of their slimline design they take up much less space and can easily be installed in a cupboard.
Hot Water System Categories
You’ve Got Questions, We’ve Got the Answers.
You’ve Got Questions, We’ve Got the Answers.
Read our most frequently asked questions
Instant electric hot water systems are cheaper to run than a storage tank as they only heat the water as you turn a tap on instead of trying to maintain the heat in a large tank.
Yes, you can absolutely replace it with an instant hot water system. However, instant hot water systems draw more power as they heat because they need to heat the water much faster. Because of this there may need to be some upgrades in regard to the electrical supply.
Instant hot water systems only heat the water as you need it, because of this they are much more efficient than a storage tank. Also, because of their slimline design they take up much less space and can easily be installed in a cupboard.

Hot Water System Categories
Browse our range of instant electric hot water systems
Stiebel Eltron SNU 5
A compact, easy-to-install water heater perfect for kitchens with frequent, small-scale hot water needs. Combining efficiency and convenience in one sleek package. The product has won the Red Dot Award for Product Design in 2023.
- Designed for single isolated sink
- Save energy and water
- Low minimum standby power consumption
- To be fitted with specialised open-vented tapware
- Plug-in appliance for easy installation

Stiebel Eltron SNU 10
A compact, easy-to-install water heater perfect for kitchens with frequent, small-scale hot water needs. Combining efficiency and convenience in one sleek package. The product has won the Red Dot Award for Product Design in 2023.
- Designed for single isolated sink
- Save energy and water
- Low minimum standby power consumption
- To be fitted with specialised open-vented tapware
- Plug-in appliance for easy installation
Stiebel Eltron DEL 13
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Stiebel Eltron DEL 18
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
Features:
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Stiebel Eltron DEL 27
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Wilson Super X
The Super X Electric Instantaneous Water Heater is energy efficient as it will only heat water as required and therefore suitable for areas that have space restraints. The heater has no storage and will continually heat as water passes over the heating elements. The Wilson Super X does not require a safetray or water saving devices.
Suitable arease of use:
- Factory amenities
- Apartments
- Small domestic dwellings
- Shops
- Portable units/temporary accommodation
Browse our range of instant electric hot water systems
Stiebel Eltron SNU 5
A compact, easy-to-install water heater perfect for kitchens with frequent, small-scale hot water needs. Combining efficiency and convenience in one sleek package. The product has won the Red Dot Award for Product Design in 2023.
- Designed for single isolated sink
- Save energy and water
- Low minimum standby power consumption
- To be fitted with specialised open-vented tapware
- Plug-in appliance for easy installation
Stiebel Eltron SNU 10
A compact, easy-to-install water heater perfect for kitchens with frequent, small-scale hot water needs. Combining efficiency and convenience in one sleek package. The product has won the Red Dot Award for Product Design in 2023.
- Designed for single isolated sink
- Save energy and water
- Low minimum standby power consumption
- To be fitted with specialised open-vented tapware
- Plug-in appliance for easy installation
Stiebel Eltron DEL 13
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Stiebel Eltron DEL 18
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
Features:
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Stiebel ELtron DEL 27
No other instantaneous water heater with 3i technology has such a wide range of features as the DEL Plus.
- Made in Germany
- Maximum hot water output temperature 50° Celsius, no tempering valve needed
- Available in 3 outputs
- Electronically controlled continuous flow hot water delivery with 3i Technology
- Temperature memory function keys
- Backlit Multifunction display
Wilson Super X
The Super X Electric Instantaneous Water Heater is energy efficient as it will only heat water as required and therefore suitable for areas that have space restraints. The heater has no storage and will continually heat as water passes over the heating elements. The Wilson Super X does not require a safetray or water saving devices.
Suitable arease of use:
- Factory amenities
- Apartments
- Small domestic dwellings
- Shops
- Portable units/temporary accommodation