Isotemp Marine Water Heaters by Indel Marine - from SailorSams.com

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Slim, round Water Heaters

Dimensions:
 Manufacturer Diagram (pdf)

Highest capacity is achieved by the engine water heat exchanger, as well as by the immersion heater mounting. They are positioned as low as possible inside the tank, to heat the water where it is coldest.

Indel, the manufacturer, gives a 5 year warranty on the inner tank, for corrosion or material stress. The stainless steel outside cover, as well as the mounting feet, are made of non-magnetic stainless steel AISI 304.

Water connections: 1/2" BSP inside straight threads.

Slim Square Water Heater

Dimensions:
 Manufacturer Diagram (pdf)

The Isotemp Slim Square has been developed with the benefit of over 20 years experience in the manufacture of marine water heaters and this latest design not only complements the extensive Isotemp range but offers even more choice to boat owners who have limited space onboard.

The Isotemp Slim Square can be installed in three different positions, making it more versatile than standard models. It has a 4.2 gallon capacity, quickly and effectively heats water up via the engine or by the electrical heater element if the boat is connected to shore power.

As with all Isotemp water heaters, the Isotemp Slim Square has been constructed with a robust acid proof stainless steel (AISI 316) and fitted with special components to protect it from over-heating. It also features a safety valve for 87 psi with winter drain. All electrical installations are factory made and delivered with a cable and plug. It has a thermostat mixing valve as standard.

Water connections: 1/2" BSP inside straight threads.

Basic Water Heaters and
Dual Element Water Heaters

Dimensions:
 Manufacturer Diagram (pdf)

Highest capacity is achieved by the engine water heat exchanger as well as the immersion heater placement. They are positioned in the lowest part of the tank, where the water is coldest, to really heat all the water in the tank, which grants an outstanding volume of hot water. The water inlet and outlet are also designed for a minimal mixing of cold water into the hot, by the incoming water.

The selected materials are all the best; tank, tubes and all materials in contact with the water are made of acid proof stainless steel AISI 316 and welded with protection gas to eliminate any risk of corrosion. Each water heater is individually leakage tested to 230 psi, before delivery. Basic 40 and 75 Liter (11 gallon and 20 gallon) water heaters are also available with double engine water coils, for connection to an engine, as well as to a water based heater system on board.

Water connections: 1/2" BSP inside straight threads.