Check the listing for details. 2.5 Gallons Electric Mini Tank Water Heater Instant Hot Water Wall/Floor Mounted. Color: White, Condition: New. Listed at 199.99 USD. Camplux ME25 Piont-of-Use Mini-Tank Water Heater stores up to 2.5 Gallons of water to supply hot water under sink or basin where you need it.Perfect for a basement wet bar, patio kitchen station, garage, attic, or even in an RV or on a boat, hot water will quickly be in hand. Save water by eliminating the wait for hot water to reach the faucet,reducing the heating losses. Easy installation.Simply tap into the water line and install the heater directly at the sink. No need for costly recirculating lines and pumps. The glass-lined tank offers great insulation and added durability, while the heater's fast recovery rate eliminates long waits for hot water. An external dial allows you to easily control the temperature range, and the CSA listed temperature-and-pressure relief valve.