Model number: SW6DRA 

Meet the Suburban 20.3Ltr Gas Water Heater—the compact, rugged solution for reliable hot water where space is at a premium. Built for easy installation, straightforward operation, and minimal maintenance, it’s designed to keep your showers warm and your daily routines seamless, whether you’re in a caravan, RV, cabin, or remote site.

Built for simple service from outside
All key service points are designed for outside access: the limit switch, reset button, and the combination drain plug/anode rod live behind a removable outer door. This thoughtful layout means routine maintenance and inspections are quick, clean, and hassle-free without dismantling the unit.

• Durable, long-lasting tank—a porcelain-lined steel water heater tank with a sacrificial anode to counter electrolytic action. The anode should be checked annually and typically lasts 2–3 years before replacement is needed, helping extend the life of the heater.
• Quick recovery for busy households—delivers up to 40 liters per hour at a 45°C temperature rise, so you’ll have hot water ready when you need it.
• Efficient ignition and control—an electronically ignited system driven by a 12V supply via a wall panel switch, delivering reliable operation with precise temperature control.
• Compact, robust design—weighs about 15 kg with footprint measuring 320 mm high by 320 mm wide by 490 mm deep (allow an extra 50 mm for plumbing fittings).
• Comprehensive installation kit included—the unit ships with 12 mm John Guest fittings and a 1/2" BSP water inlet. Note: pump pressure must not exceed 45 PSI; installation should be performed by a qualified gas fitter.

Technical snapshot

• Gas only
• 54°C
• 12,000 BTU/hr (approximately 4 kW)
• 1/2" BSP female
• 15 kg
• 320 H × 320 W × 490 D mm (add ~50 mm for fittings)
• 12 mm John Guest

The Suburban 20.3Ltr Gas Water Heater is designed with real-world living in mind—rugged construction, simple service, and dependable hot water on demand. It’s the practical choice for mobile and off-grid setups, delivering consistent performance while keeping maintenance straightforward. With Suburban’s emphasis on easy installation, operation, and maintenance, you gain a reliable hot water source without the complexity or downtime often associated with larger systems.