Welcome to Surejust Manufacturing

Surejust have been manufacturing equipment used by the marine industry for over 25 years, our reputation for quality is shown throughout our product range.

Our calorifiers are the best of class in the industry, designed and hand built in our purpose build factory; every calorifier follows stringent quality tests and extreme pressure testing to ensure it quality and reliability every time.

The Sure Cal boiler or calorifier has been our flagship product for decades, high quality materials, superb hand built construction and a hard earned reputation for quality make the Sure Cal calorifier one of our top selling products year on year.

The Sure Cal 'Super Yacht' range was introduced a few years ago specifically for the high demand super yachts increasingly being produced across the world. The theory was to take our flagship Sure Cal calorifier and perfect it for the Super Yachts it would serve. The result is the high end quality and performance of the Sure Cal calorifier on a much larger scale!

Featured products

Marine Immersion heaters

Surecal TITANIUM immersions are superior to all other marine immersion heaters and have been specifically designed and engineered over 30 years to provide an outstanding and long lasting product. Available in various sizes from 500watt – 3000watt.
From £65.00 inc VAT

6 Litre 12v/240v Motorhome Water Heater

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability.
£275.00 inc VAT

35 litre vertical single coil Surecal calorifier

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability. In addition the drop coil technology and finned surface heat exchanger used in the boiler provides unrivaled heat recovery. The units also come in twin coil version for use with secondary water heaters.
£404.00 inc VAT

22 litre horizontal single coil Surecal calorifier

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability. In addition the drop coil technology and finned surface heat exchanger used in the boiler provides unrivaled heat recovery. The units also come in twin coil version for use with secondary water heaters.
£336.00 inc VAT

DZR Ball Valves

WRAS approved, Hot forged sand blasted DZR unplated Ball Valves. Can be used with salt water.
From £13.50 inc VAT

Brass Nickel Plated 3-Way Ball Valves

3-way hot forged brass ball valves
From £35.00 inc VAT

5 litre expansion tank

The Surejust expansion tank complements any hot water system and provides a safer and smother water system. It comes pre-assembled and pressure set for easy installation. Mount on bulk head and use push fit plastic plumbing to install.
£58.00 inc VAT

Stainless Steel Table Legs

The surejust Island stainless steel table leg including aluminium above floor base and recessed base. This is a UK manufactured item and not a cheap imported replica.
From £16.00 inc VAT
Bestsellers

2 litre expansion tank

The Surejust expansion tank complements any hot water system and provides a safer and smother water system. It comes pre-assembled and pressure set for easy installation. Mount on bulk head and use push fit plastic plumbing to install.
£47.00 inc VAT

5 litre expansion tank

The Surejust expansion tank complements any hot water system and provides a safer and smother water system. It comes pre-assembled and pressure set for easy installation. Mount on bulk head and use push fit plastic plumbing to install.
£58.00 inc VAT

10 litre horizontal single coil Surecal calorifier

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability. In addition the drop coil technology and finned surface heat exchanger used in the boiler provides unrivaled heat recovery.
£283.00 inc VAT

22 litre horizontal single coil Surecal calorifier

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability. In addition the drop coil technology and finned surface heat exchanger used in the boiler provides unrivaled heat recovery. The units also come in twin coil version for use with secondary water heaters.
£336.00 inc VAT