Suburban Nautilus On Demand Caravan Water Heater | W60A 5187A | Endless Hot Water Anywhere

Enjoy the luxury of instant, endless hot water wherever your travels take you with the Suburban Nautilus On Demand Water Heater. Designed specifically for caravans, motorhomes and RVs, this advanced tankless system eliminates waiting for reheats—so you can shower, wash dishes or run multiple taps simultaneously with consistent comfort.

Unlike traditional storage tanks, the Nautilus only heats water when you need it, reducing weight, improving efficiency and maximising usable space inside your caravan.

Why Choose the Nautilus On Demand System?

✔ Endless hot water – no tank, no reheating delays
✔ Powerful 60,000 BTU two-stage modulating combustion system
✔ Automatically adjusts gas output for consistent temperature
✔ Lightweight, compact design ideal for caravans & RVs
✔ Built-in freeze protection for year-round touring
✔ WaterMark certified for Australian compliance

Advanced Two-Stage Modulating Technology

The exclusive Modulating Combustion System (MCS) continuously monitors:

• Inlet water temperature

• Water flow rate

• Output temperature

• Fan speed

• Burner and heat exchanger performance

This ensures smooth temperature control and exceptional efficiency—no sudden hot or cold spikes.

Precise Temperature Control (Optional Control Centre)

Pair the Nautilus with the optional Digital Control Centre (sold separately) to enjoy:

• Adjustable temperature range: 35°C – 50°C

• Clear digital display

• Convenient control from inside your RV

Available in black or white to suit your interior.

Product Specifications

• Fuel Type: Universal LP Gas

• Power: 12V DC (2.1A)

• Heating Capacity: 7.6L/min @ 28°C rise

• Minimum Flow Required: 1.9 L/min

• Maximum Output Temp: 50°C

• Weight: 15kg (heater only)

• Dimensions: 316.6mm W × 317.8mm H × 464.9mm D

• Warranty: 2 Years

Installation Flexibility

The Nautilus system is highly adaptable:

• Minimum install: Heater + vent | click for VENTS

• Maximum install: Heater + digital control + vent + access door

Vents and access doors are available to suit various wall thicknesses and replacement tank sizes (sold separately).

What You’ll Love

✔ Hot water on demand—no limits
✔ Quiet, efficient, tankless design
✔ Ideal for long showers, families & full-time touring
✔ Lightweight upgrade from traditional tank heaters
✔ Trusted Suburban reliability