Isotemp Slim Square 16 Hot Water Tank: Compact, Efficient Hot Water for Modern Boats

Whether you’re enjoying a weekend cruise or embarking on an extended voyage, having a reliable supply of hot water on board can make all the difference. From washing up after a meal to enjoying a hot shower after a day on the water, a dependable marine water heater adds comfort, convenience and value to your boat.

At JPC Direct, we supply the Isotemp Slim Square 16 Hot Water Tank because it offers an excellent combination of compact dimensions, efficient heating and robust marine-grade construction. Designed specifically for the demanding marine environment, this premium 16-litre water heater is an ideal solution where installation space is limited but performance cannot be compromised.

What Is the Isotemp Slim Square 16 Tank?

The Isotemp Slim Square 16 is a premium stainless steel marine calorifier that stores and heats up to 16 litres of fresh water. Unlike many conventional cylindrical water heaters, its slim square profile allows it to be installed in narrow lockers, under seating, behind bulkheads or in engine compartments where space is at a premium.

Designed for use with engine waste heat and a 750W electric immersion heater, it provides a reliable supply of hot water whether you’re under way or connected to shore power.

Why Choose the Isotemp Slim Square 16?

Boat owners often have to balance available space with onboard comfort. The Slim Square 16 has been engineered to maximise both.

Key Benefits

• – Compact slim square design for restricted installation spaces
  
  
• – 16-litre hot water capacity
  
  
• – High-quality 316-grade stainless steel inner tank
  
  
• – Brushed stainless steel outer casing
  
  
• – Efficient single heat-exchange coil
  
  
• – Powerful 750W immersion heating element
  
  
• – Excellent thermal insulation for reduced heat loss
  
  
• – Adjustable mounting brackets for flexible installation
  
  
• – Supplied with a Temperature Control Safety Mixing Valve
  
  
• – Simple winter drain system
  
  
• – Built specifically for demanding marine environments
  
  
• – Genuine Isotemp quality and reliability

Technical Specifications

* Specifications should always be confirmed before purchase to ensure compatibility with your installation.

Designed Specifically for Marine Use

Unlike domestic water heaters, the Isotemp Slim Square tank has been engineered to withstand the harsh conditions found onboard.

Features such as the corrosion-resistant stainless steel tank, robust mounting feet, high-efficiency insulation and marine-grade fittings provide dependable performance even in challenging environments.

This makes it suitable for:

• – Sailing yachts
  
  
• – Motor cruisers
  
  
• – Canal boats
  
  
• – Inland waterways craft
  
  
• – Commercial vessels
  
  
• – Workboats
  
  
• – Liveaboard boats

Efficient Heating from Two Energy Sources

While Cruising

The internal heat-exchange coil captures waste heat from your boat’s engine cooling circuit. Instead of allowing this heat to be lost, it is transferred efficiently into the stored fresh water, providing hot water without additional electrical consumption.

While Connected to Shore Power

The integrated 750W immersion heating element allows you to heat water whenever mains electricity is available, making it ideal for marina stays and overnight berthing.

Is the Slim Square 16 Right for Your Boat?

The Isotemp Slim Square 16 is an excellent choice if:

• ✔ – Installation space is restricted
  
• ✔ – You require approximately 16 litres of stored hot water
  
• ✔ – You want both engine-heated and electric hot water
  
• ✔ – You need a premium stainless steel marine water heater
  
• ✔ – You want long-term reliability from a recognised marine manufacturer

Slim Square 16 vs Cylindrical Water Heaters

Why Buy Your Isotemp Tank from JPC?

As Isotemp specialists, we can help you choose:

• – The correct tank capacity
  
• – Suitable installation accessories
  
• – Genuine replacement spare parts

Keeping your water heater performing like new is both straightforward and cost-effective.

At JPC Direct we can also supply genuine Isotemp spare parts including:

• – Heating elements
  
• – Mixing valves
  
• – Safety valves
  
• – Flanges
  
• – Gaskets
  
• – Thermostats
  
• – Hoses
  
• – Mounting components

Isotemp Slim Square 16 – FAQs