SureCal Calorifier

Surejust have been prominent in the marine industry for 25 years and have developed a range of calorifiers of the highest standard used by boat builders around the world!

SureCal boilers are made of the finest quality materials, which guaranteeing the ultimate performance and reliability. Inaddition,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. The unit is quick and easy to install with full fittinginstructions provided. The boiler is insulated in a polyurethane jacket which will retain the heat for up to 24 hours after the engine has been switched off. The boiler is made of 100% copper, this gives both performance and healthbenefits.

SureCal calorifiers come completely assembled ready for quick and easy installation. The immersion, pressure release valve, barbed engine coil connections and stainless-steel fixing brackets all come as standard. A thermostatic mixer valve is fitted as standard for the safety of those onboard and increases the volume of hot water available. The stored water within the boiler reaches the same temperature as the engine (generally 85°C). If the mixer valve is set at 65°C you will generally increase your available hot water supply by 25%. Every calorifer is also individually bench tested ensuring quality and reliability every time. In house development and a commitment to customer service, quality and reliability allow us to provide boat builders with the exact shape and size of boiler to suit their space and application.

Capacity (litres)Tank length no fittings (mm)Overall Length with fittings (mm)Diameter
(mm)
18550650274
329001000274
4512001300274

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