Marine & Caravan Water Heaters

Sigmar Compact Hot Water Systems for Boats & Caravans

There are two innovative hot water system models from Sigmar Marine, the “COMPACT” hot water heaters and the “INOX” hot water systems. From 20 to 80 litres, these hot water heaters are attractively encased in a compact plastic shell and offer better technical characteristics, water tank insulation and resistance to corrosion. They are easy to install and quick to heat. The COMPACT hot water system and the INOX hot water system offer the best cost for quality on the market today.

All Sigma hot water heaters feature an engine heat exchanger which uses the unwanted heat from the engine heat exchange circuit to heat water with the electric element of the water tanks. The heat exchanger function ensures you use engine heat and save on electricity usage and is a great feature to have whether you’re on the road or at sea.

Sigmar Marine is a hot water system certified manufacturer and one of the top leading brands for hot water heaters. We are certified Lloyds Register Quality Assurance ISO 9001 and Approval no: SAA-160756-EA. We carry all spares needed for the Sigmar hot water heaters range so contact us today if you need specific hot water system parts!

BOILER COMPACT - 20L

BOILER COMPACT - 20L

WIDTH: 366mm
LENGTH: 430mm
HEIGHT: 358mm
Price: $1,121.00

$1,121.00Add to cart

BOILER COMPACT - 22L

BOILER COMPACT - 22L

WIDTH: 287mm
LENGTH: 558mm
HEIGHT: 297mm
Price: $1,138.00

$1,138.00Read more

BOILER COMPACT – 30L

BOILER COMPACT – 30L

WIDTH: 366mm
LENGTH: 540mm
HEIGHT: 358mm
Price: $1,322.00

$1,322.00Add to cart

BOILER COMPACT – 40L

BOILER COMPACT – 40L

WIDTH: 366mm
LENGTH: 660mm
HEIGHT: 358mm
Price: $1,427.00

$1,427.00Read more

BOILER COMPACT INOX - 60L

BOILER COMPINOX - 60L

WIDTH: 366mm
LENGTH: 875mm
HEIGHT: 358mm
Price: $1,625.00

$1,625.00Read more

BOILER COMPACT INOX - 80L

BOILER COMPINOX - 80L

WIDTH: 410mm
LENGTH: 920mm
HEIGHT: 401mm
Price: $1,993.00

$1,993.00Read more

BOILER FRONT VIEW

BOILER FRONT VIEW

Volume
Litre
Heating Element
240 volt or 110 volt
Part Number
Watt
20800B020UC316
22800B022UC316
60800B060UI316
801200B080UI316

Materials: INOX AISI 316

Installation: Vertical / horizontal deck and bulkhead.

Insulation: Polyurethane foam (max 50 mm. top part of water heater)

Fittings Engine and Water: ½ “ Gas BSP UNI ISO 228

Safety and Non Return Valve: 6 BAR ± 1 (87 psi)

Heating Element: Incoloy with AISI 316 1 ¼” fitting.

Characteristics:


 

  • sturdy plastic casing with integrated brackets
  • stainless steel AISI 316 inside tank
  • injected polyurethane foam
  • stainless steel AISI 316 heat exchanger
  • 800/1200W 220V (on request 110V) heating element
  • regulating thermostat with double safety
  • safety and non-return valve
  • universal mount (vertical and horizontal)
  • thermostatic mixing valve kit available as an accessory
  • various models with different storage capacity are available

Sigmar Caravan and Marine Hot Water System, thanks to their innovative compact plastic casing and integrated brackets offer the following advantages:


  • Occupy less space than equivalent hot water heaters with separate fastening brackets, makes a great rv storage water heater
  • Greater strength of plastic to corrosion, breakage or damage.
  • Greater electric insulation of plastic.
  • Better thermal insulation: more insulation material covers the upper part of water heater where heat dissipation is normally greater thanks to inside tank’s dis-axial position in respect of outside casing.
  • Plastic casing itself dissipates less heat than other materials.
  • Greater security: casing houses five sturdy fixing points (rather than the four of traditional separate side mountings/brackets).
  • Quicker and simpler installation: no separate side mountings/brackets to be dismantled/ remounted and integrated bracket’s five fixing points are easily accessible from the sides or above.
  • Safer installation: no sharp edges or burrs.
  • Heat exchangers in stainless steel AISI 316 ensure that waste engine heat is transformed into hot water

Compact mounting positions

compact mounting positions

Thermostatic Mixing Valve Kit

This kit permits the mixing valve to be easily mounted onto all SIGMAR COMPACT.

 

Part Number : 15003

Function

SIGMAR marine mixing valves function automatically. All you have to do is turn the knob in the desired direction in order to obtain a temperature between 38°C (100°F) and 65 °C (149°F) with a tolerance of ± 7°C (±44°F).

The reliability of the device is assured by its simple design and no need of auxiliary energy. A thermostatic bulb senses the temperature of the mixed water and maintains it by changing the amount of hot or cold water mixed. N.B. in order to obtain a correct mix, the pressures of the hot and cold water must be the more or less the same.

Advantages

Water saving : By regulating the water temperature at the heating source, a significant saving of water can be attained.

Safety : Water temperature is preset and the chance of scalding is eliminated.

Temperature range : 38° – 65 °C ± 7 °C (100 °F – 149 °F ± 44 °F)
Flow rate ?p 1 bar (14.5 Psi) (kv): 1.300 l/h (347 US gals/h)

Max. temperature: 110 °C (232 °F)
Max. pressure : 10 bar (145 Psi)

Spare parts for Sigmar Compact Hot Water System for Caravans & Marine

Heating Elements: Listed Below
Volts
Watts
Material
Part No.
220
800
Incoloy
10034
220
500
Incoloy
10500
220
1200
Incoloy
10122
110
800
Incoloy
10006
110
1200
Incoloy
10265
Heating Elements
Safety non return value

Part No: 10012

Safety non return value
Monophase thermostat 220V/110V

Part No: 10016

Monophase thermostat 220V/110V
Thermostatic mixing valve Kit Range 30C – 48C/86F-118F

Part No: 15003

Thermostatic mixing valve Kit
Range 30C – 48C/86F-118F

FAQ

Marine hot water systems are between 20 and 80 litres generally, although there are many larger and smaller heaters. The size of marine hot water system you require will depend on the size of your boat and available space.
Water heater manufacturers do need to be certified. Sigmar Marine is a certified water heater manufacturer, by Lloyds Register Quality Assurance ISO 9001 to produce marine water heaters.
Installing a water heater on a boat means you have hot water for showering and washing dishes. hot water systems for boats make your time onboard more comfortable as a result. Read our Marine Hot Water Heater Guide to learn more about hot water installations.
Installing a gas water heater in your caravan means that you have hot water on tap. So with a water heater in your caravan, you have hot showers and water to wash up. Read our Caravan Water Heater Guide to learn more.
A marine installation enables you to heat water on board your boat. With a marine water heater installation, you can take hot showers and wash dishes with hot water. To learn more, read our guide to Marine Hot Water Installation.

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