ETA  9^th June. 

The Suburban 20.3L Gas-Electric Water Heater Kit with Black Door is a compact, high‑reliability hot water solution designed for caravans, motorhomes, and off‑grid setups. Built for outdoor installation, it delivers dependable hot water with the flexibility of gas heating and an electric boost—and everything you need is accessible from a single, coded exterior access point.

Designed for straightforward service, the limit switch, reset button, electric heat element, and the combination drain plug/anode rod are all housed behind the removable outer door. That means routine checks and maintenance can be performed from outside the vehicle, without disassembly or complex piping work. The porcelain‑lined steel tank includes a sacrificial anode to protect against electrolytic action, delivering longer tank life and easier long‑term maintenance.

Why this Suburban kit stands out

• External access for easy service: Removable door keeps maintenance simple without opening the entire cabinet.
• Dual heat options: Gas burner (12,000 BTU approx) plus a 1,440W electric element provide rapid hot water delivery, with the ability to run both heat sources simultaneously for higher recovery.
• Strong recovery, compact footprint: 40 L/h recovery at a 45°C rise makes showers and chores quick, even in smaller RVs, while the unit fits neatly within a compact 320 x 320 x 490 mm footprint (allow extra depth for fittings).
• Durable tank with sacrificial anode: Porcelain‑lined steel tank with an anode rod absorbs electrolytic action, helping extend tank life. The anode should be checked yearly and typically lasts 2–3 years before replacement.
• Integrated fuel and power control: Wall‑panel switch electronically ignites (12V) and controls the water heater, while a 54°C set point provides comfortable, safe hot water.
• Quality fittings included: Supplied with 12mm John Guest fittings for quick, secure connections; water inlet is 1/2" BSP female thread for compatibility with standard RV plumbing.

What you get and how it works

The unit combines gas and electric heat for reliable hot water on demand. When you need heat quickly, the gas burner delivers rapid warmth, while the electric element provides a steady boost or full electric operation for higher recovery when shore power is available. The 54°C set point ensures comfortable water temperatures without constant adjustment, and the integrated drain/anode design simplifies routine maintenance.

Key specifications at a glance

• Capacity: 20.3 liters
• Heat sources: Gas and 240V electric element (1450W roughly); can operate together for faster recovery
• Recovery rate: 40 L/hour at 45°C rise
• Gas burner rating: ~12,000 BTU (approx)
• Electric element: 1,440W, 240V
• Set point: 54°C
• Inlet/outlet: Water inlet 1/2" BSP female; fittings included
• Weight: 15 kg
• Dimensions: 320 H x 320 W x 490 D mm (allow ~50 mm for plumbing fittings)
• Fittings included: 12 mm John Guest fittings
• Installation note: Installation must be performed by a qualified gas fitter; pump pressure must not exceed 45 PSI

Ideal use scenarios

This Suburban water heater kit is perfect for RVs, travel trailers, and compact living spaces where exterior access is preferred and space is at a premium. It’s particularly beneficial for owners who want the security of gas heating with the convenience of electric boost when on AC power. For camping trips, longer showers, or times when campground power is limited, the dual‑heat design delivers reliable hot water without sacrificing efficiency.

Maintenance and care tips

To maximize longevity and performance, perform these simple checks:

• Inspect the sacrificial anode annually; replace as needed (typical life: 2–3 years).
• Regularly check the 12V wall panel ignition and operation of the gas burner.
• Ensure the pump feeding the heater does not exceed 45 PSI to protect fittings and seals.
• Seasonal checks: confirm seals, drain plug, and connections are secure before heavy use in peak seasons.

The Suburban 20.3L Gas-Electric Water Heater Kit with Black Door embodies practical, space‑savvy design for mobile living. It delivers dependable hot water with flexible heat options, straightforward external service, and robust components that RV owners and caravanners can rely on day after day.