Surejust Calorifiers

Surejust Calorifier Hot Water Tanks For Boats

Surejust Calorifier hot water tanks are essential components for modern boats, designed to provide a consistent supply of hot water for various onboard activities. These tanks function by utilising heat from the engine, central heating, back boiler, or electric immersion heater to warm up water for showers, dishwashing, and other sanitation needs onboard. Our calorifier hot water tanks are constructed to withstand the marine environment, using durable materials that resist corrosion and damage from seawater. Their efficient design allows for quick heating and ample storage capacity to meet the demands of multiple users simultaneously.

The listings below are not extensive. Other sizes and vertical orientation tanks are available. Please get in touch for a quote.

Copper and Stainless Steel Coil Calorifiers

When choosing a Surejust Calorifier for your boats, an important consideration is whether the coils should be made from copper or aluminium. Hot water tanks with copper coils are usually slightly cheaper to buy. However, they are not suitable for use with some heating appliances. Heaters, boilers, or central heating systems that contain aluminium heat exchangers or piping should not be fitted with Surejust Calorifiers containing copper coils. Cooper and aluminium will react and cause corrosion. It is usually the aluminium part that fails first. This will lead to costly repair work for replacing heat exchangers and other parts. For appliances with aluminium heat exchangers, stainless steel coils are the best option.

Surejust Calorifier Installation

Our Surejust Calorifier installations on boats are carried out in accordance with the relevant safety standards and with a high-quality finish. Our engineers have many years of experience installing marine plumbing components and are fully qualified. Choose Marine Heating Solutions for your calorifier installation.


For quotes and bookings, call or email us here.


Surejust Calorifiers with Copper Coils

Copper Coil 40 Litre

40-litre Surejust calorifier with copper coil, featuring brass fittings and a blue exterior, designed for marine hot water systems.

Single Coil £765.00

Twin Coil £830.00

Copper Coil 55 Litre

Copper coil calorifier with multiple inlet and outlet connections, designed for marine heating applications, emphasizing reliable hot water supply for boats.

Single Coil £887.00

Twin Coil£887.00

Copper Coil 75 Litre

Surejust 75 litre calorifier with copper coil, featuring brass fittings and a blue exterior, designed for marine heating solutions.

Single Coil £1050.00

Twin Coil £1149.00

Please note that prices are for the appliance or kit only, if we fit it. Prices do not include labour. To buy the appliance directly, please email us for a quote.

Surejust Calorifiers with Stainless Steel Coils

Stainless Steel Coil 40 Litre

Stainless steel 40 litre calorifier with copper coil connections, featured in marine heating solutions for boats, showcasing quality construction and plumbing components.

Twin Coil £989.00

Stainless Steel Coil 55 Litre

Stainless steel 55 litre calorifier with multiple connections, used for marine heating solutions, emphasizing durability and efficiency for boat hot water systems.

Twin Coil £1085.00

Stainless Steel Coil 75 Litre

Stainless steel calorifier with multiple connections, designed for marine heating solutions, emphasizing reliable hot water supply for boats.

Twin Coil £1247.00

Please note that prices are for the appliance or kit only, if we fit it. Prices do not include labour. To buy the appliance directly, please email us for a quote.


For quotes and bookings, call or email us here.