The H50-R1 Spa Pool Heater is a powerful 5.0kW electric heater designed for spa pools, spa baths and compatible small swimming pool systems.

Recommended for spa pools up to 1,280 litres, the H50-R1 is designed for installation on the outlet side of a compatible spa pump.

Its built-in pressure sensor enables heating when the pump is running and sufficient water pressure is present.

Featuring a durable stainless steel casing, Incoloy 800 heating element and overheating protection, the H50-R1 provides a compact heating solution for compatible spa installations.

Important: This heater does not have user-adjustable temperature control and is designed to operate with a compatible external spa touchpad or control unit.

Performance

• Heating power: 5.0kW
• Recommended spa capacity: Up to 1,280 litres
• Rated current: 21.7A
• Pressure-activated heating
• Fixed internal operating temperature: 50°C
• Internal reset temperature: 40°C
• External spa temperature controller required

Actual heating performance depends on water volume, starting temperature, heat loss and operating conditions.

Specifications

• Model: H50-R1
• Heater type: Electric inline spa heater
• Heating power: 5.0kW
• Voltage: 230V
• Frequency: 50/60Hz
• Rated current: 21.7A
• Inlet/outlet connections: 50mm
• Supplier-listed connection option: 40mm coupler
• Recommended spa capacity: Up to 1,280 litres
• Internal operating temperature: 50°C
• Internal reset temperature: 40°C
• User-adjustable thermostat: No
• External control: Compatible spa touchpad or control unit required
• Stainless steel casing: SUS304
• Heating element: Incoloy 800
• Power cable: 1.5m, without plug
• Length: 370mm
• Width: 170mm
• Height: 155mm
• 1 Year Manufacturer's Warranty

Construction & Features

• Pressure sensor for automatic heating activation when suitable pump pressure is present
• Designed for installation after a compatible spa pump
• SUS304 stainless steel casing
• Durable Incoloy 800 electric heating element
• Built-in overheating protection
• Fixed internal temperature-control settings
• Compatible with suitable external spa temperature-control systems
• Compact construction for compatible spa installations
• Supplied with 1.5m power cable without plug

Frequently Asked Questions

How does the H50-R1 heater work?

The H50-R1 uses a pressure sensor to detect water pressure from the spa pump. When the pump is operating and sufficient pressure is present, heating can activate, subject to the external control system.

Can I adjust the water temperature?

Not directly on the heater. The H50-R1 requires a compatible external spa touchpad or control unit for user temperature control. The stated 50°C operating and 40°C reset temperatures are internal heater settings, not recommended bathing temperatures.

What size spa is this heater suitable for?

The manufacturer recommends the H50-R1 for spa pools up to approximately 1,280 litres. Suitability depends on the spa's heating requirements, plumbing and electrical installation.

Does the heater come with a plug?

No. The H50-R1 is supplied with a 1.5m cable without a plug. At 5.0kW and 21.7A, it requires a suitably rated electrical circuit and installation by a qualified electrician.

Can I replace my existing spa heater with an H50-R1?

Possibly. Check the existing heater's power rating, plumbing connections, dimensions, electrical supply and control-system compatibility before ordering.

Need Help Choosing?

Not sure whether the H50-R1 is suitable for your spa pool or existing heating system?

Contact us for straightforward advice.