Be careful! Some suppliers quote their low pressure volumes including the tube volumes, i.e. 200 litres in tank is advertised as a "260 litre" system, or a "100 litre" system has 70 litres in tank.
Element - R105.00 VAT incl.
Thermostat - R195.00 VAT incl.
SR609 - R1095.00 VAT incl.
Vacuum tube glass is 1.6mm thick, resists up to 25mm dia. hailstones. NOTE: This specification is lower than the regular models.
12V Circulation pump - R669.00 VAT incl.
10W Solar panel - R229.00 VAT incl.
Air release valve - R252.00 VAT incl.
These systems are inferior to heat pipe systems. Volumes are often over stated.
5kW 5kVA, 48V, to be used with maximum 450V 4400W panels with 80A MPPT charge controller, for single use only. 4ms switchover great for use as UPS.
4kW 5KVA, 48V, to be used with maximum 145V 4400W panels with 80A MPPT charge controller, for parallel or 3 phase HOT!!!