Waterco Digiheat Electric Spa Heater – 2.4kW to 24kW
Waterco DigiHeat Electric Spa Heater – 2.4kW to 24kW
The Waterco DigiHeat electric spa heater provides compact and reliable electric water heating for spas, swim spas and plunge pools. Available in models from 2.4kW through to 24kW, the Waterco DigiHeat range offers multiple heating capacities for different spa sizes and heating requirements.
Featuring a corrosion-resistant titanium heating element, digital temperature control and integrated safety systems, the DigiHeat is designed as a dedicated electric heating solution where gas heating is not required or available.
Browse the Waterco DigiHeat models and power options below, or view our complete range of Electric Spa Heaters to compare alternative electric spa heating systems.
Why Choose a Waterco DigiHeat Spa Heater?
The Waterco DigiHeat combines electric resistance heating with a compact design suitable for spa and small-volume water heating applications. Multiple output options allow the heater to be selected according to water volume, required heat-up time and available electrical supply.
- Titanium Heating Element – provides strong resistance to corrosion in correctly maintained spa and pool water.
- Digital Temperature Controller – displays water temperature and allows easy temperature setpoint adjustment.
- Built-in Safety Systems – incorporates water-flow and over-temperature protection.
- Weather-Resistant Construction – designed for installation in suitable outdoor equipment locations in accordance with manufacturer requirements.
- Multiple Heating Capacities – models from 2.4kW through to 24kW allow the heater to be matched to different applications.
- Single and Three-Phase Options – provides options according to the electrical supply available at the installation.
Waterco DigiHeat Models and Power Options
The Waterco DigiHeat electric heater range includes both single-phase and higher-output three-phase models.
Single-Phase Waterco DigiHeat Models
- DigiHeat 2.4kW – suited to smaller spa heating applications.
- DigiHeat 3.6kW
- DigiHeat 4.8kW
- DigiHeat 6.0kW
Three-Phase Waterco DigiHeat Models
- DigiHeat 18kW – higher-output electric heating for larger applications.
- DigiHeat 24kW – the highest-output DigiHeat option within this range.
The correct model should be selected according to the spa or plunge pool water volume, desired temperature increase, required heating time and available electrical supply.
Waterco DigiHeat Heating Performance
Higher-output DigiHeat models can increase water temperature faster than lower-output models when heating the same volume of water. Actual heating time will also be affected by starting water temperature, ambient conditions and heat loss from the spa or plunge pool.
| Waterco DigiHeat Model | Output | Heat 1000L by 1°C | Heat 1000L by 5°C |
|---|---|---|---|
| DigiHeat 2.4kW | 2.4kW | 31 min | 155 min |
| DigiHeat 3.6kW | 3.6kW | 22 min | 103 min |
| DigiHeat 4.8kW | 4.8kW | 15 min | 77 min |
| DigiHeat 6.0kW | 6.0kW | 9 min | 46 min |
| DigiHeat 18kW | 18.0kW | 4 min | 20 min |
| DigiHeat 24kW | 24.0kW | 3 min | 15 min |
Heating times are a guide only. Actual performance will vary according to water volume, starting temperature, heat loss and installation conditions.
What Can the Waterco DigiHeat Heat?
Depending on the model selected and installation requirements, the Waterco DigiHeat can provide electric heating for applications including:
- Residential spas
- Swim spas
- Plunge pools
What Size Waterco DigiHeat Do I Need?
Choosing the correct Waterco DigiHeat size depends primarily on the volume of water being heated and how quickly you want to increase the water temperature.
For example, smaller DigiHeat models can suit lower-volume spas where slower heating is acceptable, while higher-output models provide substantially faster heating. The larger 18kW and 24kW models require an appropriate three-phase electrical supply.
Other factors to consider include:
- Total spa or plunge pool water volume
- Starting water temperature
- Desired operating temperature
- Required heat-up time
- Ambient temperature
- Whether an insulated spa cover is used
- Available electrical supply
Using a correctly fitted insulated cover while heating can substantially reduce heat loss from the water surface and improve overall heating performance.
Waterco DigiHeat vs Gas Spa Heating
The DigiHeat provides an electric alternative to a traditional gas spa heater. Which heating method is appropriate depends on the application.
Gas spa heaters generally provide considerably higher heating outputs and are particularly useful when rapid on-demand heating is required. An electric heater such as the Waterco DigiHeat can be attractive where gas is unavailable or where the installation is specifically designed around electric heating.
If rapid gas heating is more appropriate for your spa, compare the HeaterFix range of Gas Spa Heaters.
Waterco DigiHeat Installation
The Waterco DigiHeat must be installed in accordance with the manufacturer's installation requirements. Correct water flow, plumbing configuration and electrical supply are essential for reliable heater operation.
Installation considerations include:
- Correct electrical supply for the selected model
- Single-phase or three-phase requirements
- Correct water flow through the heater
- Suitable plumbing configuration
- Equipment location
- Manufacturer-required installation clearances
- Access for future servicing
Electrical installation and connection must be completed by an appropriately licensed electrical contractor.
Waterco DigiHeat Titanium Heating Element
One of the important features of the Waterco DigiHeat spa heater is its titanium heating element. Titanium provides excellent corrosion resistance and is particularly suited to pool and spa heating equipment exposed to chemically treated water.
Correct water chemistry remains essential. A titanium heating element does not eliminate the need to maintain spa water within the equipment manufacturer's recommended water-balance parameters.
Waterco DigiHeat Warranty
- Residential Use: 2 Years
- Commercial Use: 1 Year
Warranty conditions and exclusions apply. Refer to the current Waterco warranty documentation supplied with the product for complete warranty terms.
Waterco DigiHeat Frequently Asked Questions
What is a Waterco DigiHeat?
The Waterco DigiHeat is an electric water heater designed for applications including spas, swim spas and plunge pools. The range includes heating outputs from 2.4kW through to 24kW.
Which Waterco DigiHeat model is right for my spa?
The correct model depends on spa water volume, starting temperature, desired temperature, required heat-up time and available electrical supply. Higher-output models heat the same volume of water faster but may require three-phase power.
Can a Waterco DigiHeat be used for a plunge pool?
Yes, a DigiHeat can be used for suitable plunge pool applications provided the heater is correctly sized for the water volume, desired temperature and heating requirements.
Does the Waterco DigiHeat use a titanium heating element?
Yes. The DigiHeat uses a titanium heating element designed to provide strong corrosion resistance in pool and spa water when the water is correctly maintained.
Does the Waterco DigiHeat require three-phase power?
It depends on the model. The lower-output DigiHeat models are available for single-phase applications, while the 18kW and 24kW models require an appropriate three-phase electrical supply.
How long does a Waterco DigiHeat take to heat a spa?
Heating time depends on the DigiHeat model, spa water volume, starting temperature, desired temperature and heat loss. Higher-output DigiHeat models will generally heat the same volume of water faster than lower-output models.
Can I install a Waterco DigiHeat myself?
The heater must be installed according to Waterco's installation requirements. Electrical installation and connection must be completed by an appropriately licensed electrical contractor.
Buy Waterco DigiHeat Electric Spa Heaters
HeaterFix supplies Waterco DigiHeat electric spa heaters in multiple heating capacities from 2.4kW through to 24kW. Select the appropriate model above or browse our complete Electric Spa Heaters collection to compare other electric spa heating options.
Download Digiheat Brochure | Download Digiheat User Manual
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