16L Water Heater

16L Portable Water Heaters — 4.22 GPM High-Flow Propane Units for Cabins & Off-Grid

When 2.64 GPM isn't enough — when you're running a shower and a kitchen tap at the same time, or supplying hot water to a cabin with multiple fixtures — the 16L / 4.22 GPM class is where you step up.

The Camplux BW422 is the core model in this range — 4.22 GPM output, propane, digital display, and enough flow to handle two simultaneous low-flow fixtures. The 16L On Demand model is optimized specifically for off-grid and cabin use, where the water supply may be gravity-fed or pump-assisted rather than pressurized.

One practical note: at 4.22 GPM, these units require a minimum inlet pressure to activate the flow sensor. If you're running from a gravity tank or low-pressure pump, check the minimum activation pressure spec before ordering — it's listed on each product page.

Browse by size: 6L · 10L · 20L · or see the full Portable Water Heaters lineup.