Santon produced a wide range of point-of-use water heaters for domestic, commercial and washroom applications. This collection brings together genuine Santon spare parts and specialist accessories for compatible Aquarius, Aquaheat, Aqualine, PowerPack and EV2008 appliances.
Available components include element plate assemblies, instantaneous heat exchangers, thermostats, thermal cut-outs, valves, gaskets, controls, expansion kits and specialist vented taps.
Many Santon models are now established or legacy appliances, but genuine replacement components and installation accessories may remain available. Compatibility can depend on the complete model, capacity, electrical rating, installation arrangement and manufacturing generation. Always confirm the original part number and appliance details before ordering.
Understanding the Santon Water Heater Ranges
Santon water heaters were produced for several different types of installation. Identifying the range is essential because parts should not be assumed to fit another Santon appliance simply because they look similar.
The principal ranges covered by this collection include:
- Santon Aquarius: vented storage water heaters in oversink and undersink configurations
- Santon Aquaheat: compact unvented storage water heaters
- Santon Aqualine: unvented storage heaters incorporating thermostatic blending controls
- Santon PowerPack: instantaneous electric water heaters that heat water on demand
- Santon EV2008: instantaneous handwash units designed to supply a single basin
- Santon vented taps: specialist open-outlet taps for compatible undersink vented water heaters
Some components have applications across more than one appliance range, while others are specific to one capacity, power rating or installation position. Compatibility should always be checked against the individual product description and original appliance documentation.
Santon Aquarius Spare Parts and Vented Taps
Aquarius is a vented storage water heater range available in oversink and undersink configurations. The heater stores a small quantity of water close to the point of use, making it suitable for sinks, basins, kitchens and utility areas.
Depending on the model, Aquarius spare parts can include:
- 1.2kW and 3kW element plate assemblies
- Control thermostats
- Over-temperature cut-outs
- Element plate gaskets
- Inlet control valves
- Terminal and top covers
- Outlet fittings
- Specialist vented taps
The oversink and undersink arrangements must not be treated as interchangeable. An undersink Aquarius requires an approved open-outlet vented tap that allows expansion water to discharge safely. A conventional restrictive tap must not be fitted in its place.
A small amount of water may discharge through a vented outlet while the stored water is heating and expanding. Persistent flow, discharge when the appliance is cold or unusual leakage should be investigated.
Santon Aquaheat and Aqualine Spare Parts
Aquaheat and Aqualine are compact unvented storage water heater ranges. Unlike a vented Aquarius installation, an unvented heater is connected directly to the mains water supply and relies on correctly selected pressure, expansion and temperature-safety controls.
Aqualine models also incorporate thermostatic blending controls, allowing stored hot water to be blended to a controlled outlet temperature. Components such as blending valves, pressure and temperature relief valves, thermostats and element assemblies must be matched to the exact appliance.
This collection includes compatible:
- Horizontal and vertical element plate assemblies
- Thermostatic blending valves
- Pressure and temperature relief valves
- Expansion vessels and expansion relief components
- Pressure-reducing valves
- Non-return valves
- Complete ALK installation and expansion kits
The correct ALK accessory kit depends on the heater, incoming water pressure, pipework arrangement and whether the system can safely accommodate expanded water. Kits with similar names may contain different valve and expansion components, so they should not be selected from appearance alone.
Safety valves must never be capped, obstructed or replaced with an ordinary plumbing valve.
Santon PowerPack and EV2008 Spare Parts
Santon PowerPack and EV2008 appliances operate differently from the storage heaters elsewhere in this collection.
PowerPack is an instantaneous water heater range that heats water as it passes through the appliance. Compatible parts can include electrically rated heat exchangers and control components. The correct heat exchanger must be matched to the appliance’s complete model and kilowatt rating.
EV2008 is an instantaneous handwash unit designed to supply warm water to a single basin through its dedicated outlet. Replacement components may include control knobs, internal controls and outlet-related parts.
A reduction in water temperature or flow does not automatically mean that the heating component has failed. Possible causes can include:
- Reduced electrical supply
- Incorrect flow adjustment
- Restricted inlet or outlet
- Scale accumulation
- A failed heating component
- An activated safety cut-out
- Loose or damaged electrical connections
Instantaneous appliances should be isolated and properly tested before parts are ordered.
Santon Elements, Thermostats and Safety Cut-Outs
The heating component transfers electrical energy into the water. Santon storage heaters commonly use element plate assemblies, while instantaneous models may use complete heat exchangers with different electrical ratings.
Before ordering a replacement, check:
- Original component part number
- Complete heater model
- Storage capacity, where applicable
- Electrical input in kilowatts
- Voltage rating
- Oversink, undersink, horizontal or vertical configuration
- Electrical connections
- Mounting plate and gasket arrangement
The thermostat controls water temperature during normal operation. A thermal cut-out provides additional protection by interrupting the electrical supply when an unsafe temperature is detected.
A cut-out that repeatedly activates should not simply be reset. The cause may be a faulty thermostat, excessive scale, restricted water flow, incorrect installation or another control problem requiring investigation.
When an element plate is removed, its gasket should be inspected and renewed where necessary. The heater must be completely refilled and checked for leaks before the electrical supply is restored.
How to Identify the Correct Santon Spare Part
Begin by locating the appliance data label. Depending on the model, this may be on the outer casing, underneath the heater or behind a removable cover.
Record as much of the following information as possible:
- Complete Santon model name and number
- Product or catalogue code
- Storage capacity
- Electrical power rating
- Serial number
- Approximate age of the appliance
- Original component part number
- Oversink or undersink installation
- Vented, unvented or instantaneous configuration
- Any ratings printed on the existing component
Do not rely solely on the appearance of the original part. Similar-looking elements, thermostats, valves and controls may have different electrical ratings, safety settings or applications.
You may see genuine replacement components described under either the Santon or Heatrae Sadia name. The part number and documented model compatibility are more important than the brand wording printed on the packaging.
Should You Repair or Replace the Water Heater?
Repairing an existing Santon water heater can be practical when the correct component remains available and the appliance is otherwise in serviceable condition.
Complete replacement may be more appropriate when:
- The water container or casing is leaking
- Several major components have failed
- The required part is obsolete
- The appliance has extensive limescale damage
- Wiring or terminals are badly damaged
- There is significant corrosion
- The repair cost approaches the cost of a suitable replacement
- The appliance no longer meets the required hot-water demand
A competent professional should inspect the appliance before a repair-or-replace decision is made. Replacing a component without correctly diagnosing the fault can add unnecessary cost without resolving the original problem.
Need Help Finding a Santon Spare Part?
If you are unsure which Santon component or accessory you require, contact Heatraq before ordering and provide:
- The complete heater model
- Capacity and electrical rating
- Product code and serial number
- Original component part number
- Clear photograph of the appliance data label
- Clear photograph of the complete heater
- Clear photographs of the existing component and connections
This information helps us assess compatibility and reduces the risk of selecting a similar-looking but unsuitable part.
Santon water heaters can contain mains-voltage electrical connections, very hot water and safety-critical pressure controls. Internal testing, component replacement and recommissioning should be completed by a suitably competent professional.
