Espar Ltd - Products: Marine Water Heaters

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Products: Water Heating
Supply, Repairs And Parts

Marine Water Kits:

A water heater will offer air heat via radiators or fan blowers and give a supply of domestic hot water for taps, showers, etc.

A water line is connected to the boat’s Calorifier to give domestic hot water. From this line heated towel rails and drying locker outlets are possible. This offers the flexibility for summer use to avoid heating the cabins unnecessarily.

A second hot water line takes heat to the cabins. The hot water is converted into warm air via panel radiators. This is the favoured approach, but adequate fascia or bulkhead space will be necessary to house the panels. Alternatively low current consumption fan blowers are available to work in a similar way to a car heater. Blown warm air is then available by switching the individual heater units as heating is required. These can be linked to individual cabin thermostats for full system control.

The water heaters own thermostat will control the system temperature automatically, very much as a domestic boiler does.

Eberspacher offer all the parts for the system so there is no need to worry about obtaining the right individual components. And a kit can be developed from the available parts to suit your particular requirement.

Download Eberspacher Marine Heating brochure
(pdf format)

For a Technical Brochure click here (pdf format)

marine water heater kits, eberspacher, hydronic, D4W, D5W, D10W

How the Water System Works
On starting, the heater draws in combustion air from the engine area or where the heater is located. Fuel is drawn from the main boat’s fuel tank and mixed with the air. A glow pin ignites the mix and a controlled flame is established in the heat exchanger. The integrated water pump now circulates the system’s water, passing it over the heat exchanger and onto the Calorifier and radiator system.

Once the system is hot the heater will regulate down to a lower heat level. This avoids unnecessary cycling by detuning the once heated system into a steady ‘top up’. The system is under much greater control and is very economic to run. When heavy demands are made on the system, such as a shower or maximum cabin heat, the heater automatically returns to a higher heat level.

Kits
Each kit comes complete with a comprehensive instruction manual to ensure installation is as simple and straight forward as possible and, for further reassurance of quality, is backed by a full 12 months parts and labour warranty together with a nationwide dealer network.

Hydronic 5 complete marine kit
12v E2649

Hydronic 5 complete marine kit
24v E2924

Kit contains:

Hydronic 5 heater with integral electronic control.
Long life ignition pin – used only once per heating period for initial starting.
Mini digital 7 day programmer.
All electrical looms and connections.
2 metre insulated exhaust system.
Complete fuel system.
Header tank.
Stainless steel heater mounting bracket.
Stainless steel exhaust skin fitting.
14 metre's water pipe and fittings.
Comprehensive installation manual.

Hydronic 4 complete marine kit
12v E1727

Kit contains:

Hydronic 4 heater with integral electronic control.
Long life ignition pin – used only once per heating period for initial starting.
Mini digital 7 day programmer.
All electrical looms and connections.
2 metre insulated exhaust system.
Complete fuel system.
Header tank.
Stainless steel heater mounting bracket.
Stainless steel exhaust skin fitting.
8 metre's water pipe and fittings.
Comprehensive installation manual.

Hydronic M10 complete marine kit
12v E3554

Hydronic M10 complete marine kit
24v E3428

Kit contains:

Hydronic M10 heater with integral electronic control.
Long life ignition pin – used only once per heating period for initial starting.
Mini digital 7 day programmer.
All electrical looms and connections.
2 metre insulated exhaust system.
Complete fuel system.
Header tank.
Stainless steel heater mounting bracket.
Stainless steel exhaust skin fitting.
23 metre's water pipe and fittings.
Comprehensive installation manual.

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Queries: sales@espar.co.uk

Tel: (01752) 491900
Fax: (01752) 491910