Optimal 750 litre

The Optimal Water Heater

Optimal is a flexible solution for the future for different combinations. It makes it possible to connect in an optimal way from day one and also to make amendments. Optimal is developed to allow for optimal installations for thermal solar heating, heat pumps, wood burners, pellets as an electrical heater or as a combination of those systems.

Maximum security concerning legionnaire’s disease. The hot water is heated in double battery loops made of copper. The standing water volume is minimal (for normal water heaters it is common to have at least 120liter standing water). The water is quickly replaced as soon as it is flushed; there is a direct production of hot tap water.

Optimal 300, 500 litre

Maximum flexibility. The tank has got many possibilities for connections. They are not connected at the top which gives a bigger flexibility and makes it possible to use different connection combinations. Different height of the connection can be chosen. It is for instance possible to retrofit a pool exchanger to the tank.

The loops are kept apart and vertical for optimal heat exchange. We are using 22mm loops to achieve a lower pressure fall and larger heat exchange surface. Our preheating loop starts far down in the tank. This gives the lower bottom better layering and allows the solar panel to produce more energy per year.

The tanks are produced in three sizes: 300L, 500L, 750L. 300 and 500 litre are delivered in white or galvanised steel sheet. 750 litre is polyurethane insulated. This insulation is possible to remove.

Technical Specification:

300 litre

500 litre

750 litre

Dimensions:

600x600x1740 mm

740x740x1750 mm

750x1900 mm

Insulation:

Mineral wool

70 mm

Mineral wool

70 mm

Polyurethane

40 mm

(alt 90 mm)

Total height:

1800 mm

1860 mm

1945 mm

Hot tap water loop:

Pre-heating loop:

Solar heating loop:

Extruded coppercoils

22mm x 15 m

Extruded coppercoils

22mm x 9,5 m

Extruded coppercoils 22mm x 15 m (9,5 m)

Extruded coppercoils

22mm x 15 m

Extruded coppercoils

22mm x 9,5 m

Extruded coppercoils 22mm x 15 m (9,5 m)

Extruded coppercoils

22mm x 15 m

Extruded coppercoils

22mm x 9,5 m

Extruded coppercoils 22mm x 15 m (9,5 m)