Webasto Isotemp Slim Square Electric Hot Water Heater - 4.2 gallon

Purpose-built for yachts and boats, the Isotemp Slim Square delivers premium, marine-grade performance in a compact, low-profile design. Its brushed stainless-steel casing houses extra-long corrugated coils and a smartly positioned immersion heater at the bottom of the tank, ensuring even heating and minimizing hot/cold water mixing at the inlet and outlet. A plug-and-play 750W heating element and 360° adjustable mounting make it as easy to install as it is reliable to run.

Key Features:

• Marine-grade construction — stainless-steel tank and casing, stainless fixing feet, extra-thick insulation, and a 5-year tank warranty
• Smart heat distribution — extra-long corrugated coils and a bottom-mounted immersion heater for even, efficient heating throughout the tank
• Easy installation & upkeep — 360° adjustable mounting (including bulkhead installs), plug-and-play 750W element, and a simple winter drain built into the safety valve

Specifications:

• Capacity: 4.2 gallons
• Standard heating element: 750W immersion
• Available with or without thermostat mixing valve