Refrigeration System Conversions

Upgrade to Efficient DC Refrigeration

Thinking about upgrading your boat’s old refrigeration system? At Extremely Cool, we specialise in retrofitting outdated marine refrigeration units to modern DC (12V/24V) systems, providing boat owners with a reliable, energy-efficient solution designed for life on the water. Whether your current setup is no longer performing or you're looking to reduce your power usage, we can convert your existing system into a streamlined DC-powered unit built for efficiency and convenience.

Why Convert to a DC System?

DC refrigeration systems are now the go-to choice for most pleasure craft thanks to their:

Low Power Consumption

Ideal for off-grid cruising and battery-powered setups.

Quiet Operation 

Enjoy peace onboard without a noisy compressor.

Improved Efficiency 

Modern components provide better cooling with less energy.

Reliable Performance 

DC systems are built tough for marine conditions.

What We Do

We assess your current refrigeration setup and custom-fit a DC solution to suit your vessel’s layout, battery system, and usage needs. Our retrofit services include:

Removal of outdated or inefficient systems

Installation of high-quality DC compressors and components

Integration with existing fridge or freezer units (where compatible)

Advice on power usage and ongoing care

We specialise in Isotherm and Frigoboat DC systems but can work with a wide range of marine refrigeration brands.

Why Choose Extremely Cool?


Fast Mobile Service

We come to your berth.

40+ Years Experience

Qualified and trusted since 1999.

All Brands & Models

We retrofit and service them all!

Quality Workmanship

Professional conversions done right, the first time.

Marinas We Service

Our mobile service covers these marinas across the Auckland region. We’ll come to you—wherever your boat is moored.

Orakei Marina

Milford Marina

Outboard Boating Club (OBC)

Westhaven Marina

Bayswater Marina

Hobsonville Point Marina

Sandspit Marina

Gulf Harbour Marina

Ready to Upgrade?

Enjoy a quieter, more efficient boating experience with a DC refrigeration conversion. Call us or send an enquiry today to discuss your options with Auckland’s marine refrigeration experts.