Walmart offers the Eccotemp L5 Portable Tankless Water Heater for $95 with free shipping. That's the lowest total price we could find by $2. This 37,500-btu water heater features a 20-minute auto safety shutoff, CSA regulator for use with propane tank, battery igniter, shower head, garden hose adapter, temperature control, and 1.5 gallons per minute flow capacity. It uses three D cell batteries (not included).

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