The H20-R2 Spa Bath Heater is a compact 2.0kW electric heater designed for spa baths, spa pools and compatible small swimming pool systems.

Recommended for spa baths holding up to 750 litres, the H20-R2 is particularly suited to double spa bath installations.

Designed to connect to the outlet of a compatible spa pump, the heater uses a pressure sensor to activate heating when the pump is operating and sufficient water pressure is present.

The heater features a fixed-temperature thermostat, stainless steel casing and built-in overheat protection.

Performance

• Heating power: 2.0kW
• Recommended spa capacity: Up to 750 litres
• Typical application: Double spa bath
• Operating thermostat temperature: 45°C
• Reset temperature: 37°C
• Automatic pressure-activated operation
• Non-adjustable temperature setting

The H20-R2 is designed to maintain or increase water temperature in a compatible spa system. Actual heating performance depends on water volume, starting temperature, heat loss and operating conditions.

Specifications

• Model: H20-R2
• Heater type: Electric spa bath heater
• Power rating: 2.0kW
• Voltage: 230V
• Frequency: 50/60Hz
• Rated current: 8.7A
• Inlet/outlet connections: 40mm
• Connection fittings: Suitable for 40mm ID pressure pipework or 48mm OD connections
• Recommended spa capacity: Up to 750 litres
• Operating temperature: 45°C
• Reset temperature: 37°C
• Temperature setting: Fixed, non-adjustable
• Maximum working pressure: 3 PSI (supplier specification — confirmation recommended)
• Stainless steel casing: SUS304
• Heating element: Incoloy 800
• Power cable: 5m, supplied without plug
• Length: 370mm
• Width: 170mm
• Height: 155mm
• 1 Year Manufacturer's Warranty

Construction & Features

• Pressure sensor activates heating when suitable pump pressure is present
• Designed for installation on the outlet side of a compatible spa pump
• SUS304 stainless steel casing
• Incoloy 800 electric heating element
• Fixed-temperature thermostat with automatic reset
• Built-in overheating cutout
• Connection fittings supplied
• Compact design suitable for compatible spa bath installations
• Supplied with 5m power cable without plug

Frequently Asked Questions

How does the H20-R2 heater operate?

The heater uses a pressure sensor to detect water pressure from the spa pump. When the pump is operating and the required pressure is present, the heater can activate automatically.

Can I adjust the water temperature?

No. The H20-R2 has a fixed thermostat setting, with an operating temperature of 45°C and reset temperature of 37°C.

What size spa is the H20-R2 suitable for?

The supplier recommends it for spa baths up to approximately 750 litres, typically a double spa bath. Suitability also depends on the system's heating requirements.

Does the heater come with a plug?

No. It is supplied with a 5m cable without a plug. Electrical installation must be completed by a suitably qualified electrician in accordance with applicable New Zealand requirements.

Can I replace my existing spa heater with an H20-R2?

Possibly. Check your existing heater's power rating, plumbing connections, dimensions, electrical supply and control arrangement before ordering.

Need Help Choosing?

Not sure whether the H20-R2 is suitable for your spa bath or heating system?

Contact us for straightforward advice.