R.W. Fernstrum & Company
WEKA Boxcooler (US-built)
Uncoated 90/10 CuNi sea-chest box cooler built in the US under Fernstrum's WEKA partnership; no coating or ICAF required.
Box coolers products
12 products
Tube-bundle coolers installed inside a sea chest in the hull; sea water flows through by natural convection and ship speed.
Filter products: Box coolers
R.W. Fernstrum & Company
WEKA Guard & WEKA Protector Type T
Protection devices for WEKA Boxcoolers: Guard during construction, Protector Type T in service (Dual/Multi for shared sea chests).
R.W. Fernstrum & Company
Keel Cooler & Boxcooler Sizing / Engineering
Custom sizing of GRIDCOOLER keel coolers and WEKA Boxcoolers from customer engine, coolant and vessel data.
R.W. Fernstrum & Company
Replacement Parts & Installation Support
GRIDCOOLER anode kits (zinc/aluminium), gasket and isolator sets, compression sealing kits for cofferdam installs, and manuals.
Blokland Non-Ferro
Blokland Boxcoolers
Custom box coolers from ~0.5 to over 150 m² cooling surface, shaped to the hull, with welding frames and ICAF/ultrasonic anti-fouling options.
Blokland Non-Ferro
Blokland Bottom-Type Coolers
Steel-box cooler placed inside against the hull bottom, leaving a smooth bottom; for small propulsion engines, gensets and HVAC.
Duramax Marine
Duramax BoxCooler
Sea-chest box cooler with aluminium-brass tubes, heat-cured synthetic coating and ICAF copper-anode anti-fouling.
Kelvion
Kelvion Box Coolers
Sea-chest U-tube box coolers: round (2–21 m²) and rectangular (9–120 m², bundle depth 400–1,800 mm) for small and medium vessels.
WEKA Marine
WEKA Box Cooler – 90/10 Copper-Nickel
Uncoated 90/10 CuNi U-tube box cooler with naval brass tubesheet; no ICAF needed; WEKA Guard/Protector stray-current protection.
WEKA Marine
WEKA Box Cooler – 70/30 Copper-Nickel
Box cooler variant with 70/30 copper-nickel tube bundle.
WEKA Marine
WEKA Box Cooler – Coated Aluminium Brass
Box cooler variant with coated aluminium-brass tubes.
WEKA Marine
WEKA Steel Coolers
Closed-circuit coolers with phenol heat-cured coated or galvanised steel tubes for marine, industrial and stationary use.