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Solarvent - Solar Water Heaters

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The low pressure heaters are suitable to work with a borehole type setup with a storage tank on a stand where the supply pressure does not exceed 1 bar head, or with our small auxiliary tank with ball valve mounted on top of the main tank in order to reduce municipal water pressure.

The SOLARVENT high pressure units are designed to work with a supply pressure not exceeding 6 bars, for example municipal supply pressure or from a pressure pump. These models have a copper tube heat exchanger inside the main tank and the water supply is connected to this tube. As the water flows through the heat exchanger, it gets heated by the hot water inside the tank. The water in the tank is only the heat exchange medium and it permanently stays inside the main tank.

The SOLARVENT tanks are made from AISI 304 2B stainless steel suitable to hold potable water and are insulated with 55 mm poly-urethane foam. This means little heat loss during the night. We recommend a minimum tank capacity of 60 litre per member of the household. The frames are made from powder coated galvanized steel plate.

Functioning: Water inside the vacuum tubes is heated by means of radiation from the sun causing it to rise into the main tank. The tubes with an outside diameter of 58 mm and a length of 1800 mm have a average heating capacity of about 125 W. This means 8 vacuum tubes produce 1 kW of heating power. They have a glass thickness of 2.1 mm and are made from very tough borosilicate glass that can withstand hail stones of 40 mm dia. Electrical heating elements are available optionally for cases of prolonged cloud cover.

Solarvent - Sizes

Model
No

Pressure

Tube
Count

Capacity
(Litre)

SV 10 110 LP

Low

10

110

SV 12 140 LP

Low

12

140

SV 20 220 LP

Low

20

220

SV 30 330 LP

Low

30

330

NOTE:

Low pressure models: Prices include auxiliary tank. Electrical elements and thermostats excluded.

High pressure models: Comes with copper tube heat exchanger and auxiliary tank. Electrical element optional.

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ELEMENT 1,5 kW & THERMOSTAT (STANDARD SATCHWELL)

VACUUM TUBE ø58 x 1800 – 2.1 mm BOROSILICATE GLASS

High Pressure Heater Low Pressure Heater

Low Pressure Heater

High Pressure Heater

Model
No

Pressure

Tube
Count

Capacity
(Litre)

SV 140 HP

High

12

140

SV 220 HP

High

20

220

SV 330 HP

High

30

330





Low Pressure Heater

High Pressure Heater