Isotherm

Most models here are special order. They are not held in stock, so ask us for a quote and lead time and we will confirm availability before you order.

Isotherm builds refrigeration designed for boats. eMarine stocks the full range: Cruise (CR) front-opening fridges such as the CR49, CR65, CR85 and the popular CR130; DR drawer refrigerators and freezers; BI built-in boxes; TB portable fridge/freezers; ITC, Compact and Magnum refrigeration systems with air-, water- or sea-water-cooled condensers; plus ice makers, Divino wine cellars and Isotemp marine water heaters.

How to choose an Isotherm refrigerator

  • Fridge or system: use a complete Cruise, Drawer or BI unit for a new cabinet, or a refrigeration system with evaporator to convert an existing icebox.
  • Power: many models are AC/DC; some are DC only (12/24V). Check what your boat has.
  • Cooling: air-cooled units need ventilation; water- and sea-water-cooled systems suit hot climates and enclosed spaces.
  • Fit: compare cut-out dimensions, door swing and flange style (3- or 4-sided) before you order.

What is the Isotherm CR130?

The Isotherm Cruise 130 is a front-opening AC/DC refrigerator of about 4.6 cu.ft., available in Drink (all fridge), INOX Clean Touch stainless steel, Classic and Elegance black finishes.

Can Isotherm refrigerators run on 12V and 24V?

Yes. The DC compressor models run on 12 or 24 volt systems, and AC/DC models also run on shore power or an inverter.

Where can I see all marine refrigerators?

Browse the full marine refrigerators and freezers collection, or Isotemp water heaters for hot water on board.

eMarine carries the full Isotherm range for boats: Cruise front-opening fridges such as the CR49, CR65, CR85 and the 4.6 cu ft CR130 INOX, DR drawer refrigerators and freezers, BI built-in boxes, TB portables, and ITC, Compact and Magnum refrigeration systems with air-, water- or sea-water-cooled condensers. Many models run on AC/DC, and the DC compressor units work on 12V or 24V banks. The same brand builds the Isotemp tanks in our water heaters collection. Most units are special order, so ask for a quote and lead time; we confirm cut-out dimensions, door swing and flange style before you order.

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Isotherm refrigerator buying guide

Isotherm marine fridges are built around DC compressors that run straight from a 12 V or 24 V house bank. The main choices are the cabinet style (front-opening Cruise, Drawer or built-in box), the size that fits your galley cut-out, and how much battery capacity the fridge will use each day. Figures below are from Isotherm's current marine catalogue.

Size: volume and cut-out

Isotherm model numbers are the gross volume in liters: a Cruise 49 holds 49 liters (about 1.7 cu ft), a Cruise 130 holds 130 liters (about 4.6 cu ft). Measure the cabinet opening and depth first, then compare with the W x H x D figures in the table. On several smaller models the compressor can be remote mounted, which reduces the depth needed. Air-cooled units also need ventilation around the condenser, so follow the installation manual for clearances.

Fridge, freezer compartment or Drink

  • Most Cruise models have a small freezer compartment. On the Cruise 49 to 130 it is rated at -6 °C (21 °F), well above the -18 °C (0 °F) of a true freezer.
  • Drink versions, such as the Cruise 130 Drink and Cruise 160 Drink, are all fridge with no freezer compartment.
  • For a real freezer, look at the Cruise 200 (50 liter freezer at -12 °C) or the Cruise 195 Combi (65 liter freezer at -18 °C).

Power use on a boat

Isotherm rates daily consumption in kWh per 24 hours. Divide by battery voltage to get amp-hours: the Cruise 130 Inox CT at 0.294 kWh/24h uses about 24.5 Ah a day from a 12 V bank. Isotherm's electronics shut the compressor off if voltage drops below 11 V, and the catalogue specifies a direct connection to the battery or main switch through a 20 A DC breaker. In the current catalogue the Cruise and Drawer cabinets are 12/24 V units; AC/DC operation, from 80 to 260 V at 50 or 60 Hz, comes through the Isotherm Power Pack, so check whether a listing is an AC/DC version.

ModelFridge / freezer (L)Freezer tempW x H x D (mm)Energy use (kWh/24h)
Cruise 49 Inox CT44 / 5-6 °C399 x 526 x 5050.238
Cruise 65 Inox CT60 / 5-6 °C469 x 531 x 5200.250
Cruise 85 Inox CT77 / 8-6 °C494 x 626 x 5500.287
Cruise 130 Inox CT122 / 8-6 °C544 x 750 x 5550.294
Cruise 130 Drink Inox CT130 / none544 x 750 x 5650.380
Cruise 160 Drink Inox CT160 / none626 x 871 x 6100.492
Cruise 200 Inox CT150 / 50-12 °C729 x 876 x 6250.799
Cruise 195 Combi Inox CT130 / 65-18 °C544 x 1351 x 5750.798
Drawer 190 Inox CT190 / none905 x 803 x 5510.670

Gross volumes; all run on 12/24 V DC.

Models in this collection

Questions

What size is the Isotherm CR130 refrigerator?

The Cruise 130 Inox CT measures 544 x 750 x 555 mm (about 21.4 x 29.5 x 21.9 in) with 122 liters of fridge space and an 8 liter freezer compartment. The Drink version is 130 liters, all fridge.

Does an Isotherm fridge run on 12 V and 24 V?

Yes. The DC compressors run on either 12 V or 24 V. AC/DC versions also run on 115 V or 230 V shore power.

How much power does an Isotherm marine fridge use?

Isotherm rates the Cruise 49 at 0.238 kWh per 24 hours, about 20 Ah a day at 12 V, and the Cruise 130 Drink at 0.380 kWh, about 32 Ah. Real use rises in hot weather and with frequent door openings.

What is the difference between Cruise and Drawer models?

Cruise models open with a hinged front door. Drawer models pull out like a kitchen drawer; Isotherm designs them for easy access to food and drinks even while the boat is moving.

Need help choosing? Contact us with your cut-out dimensions, battery voltage and whether you need a freezer, and we will match the right Isotherm model.