Solar Water Heater-Close Circuit

Close Circuit System Description

A Closed Circuit System is a system where two water circuits are contained within the solar water heater. The first circut is the household water storage tank which stores the heated household water used within the household. The second circit is the solar collecor circuit which is fully sealed and mechanically separated from the household water circuit by a heat exchanger system. The fluid within the solar collector circuit is a mixture of household water and food grade propylene glycol. This fluid mix transfers solar energy from the solar collector s to the heater exchanger system and prevents damage to the solar collectors should the ambient temperature fall below freezing point. This system type can be used in any climatic location and with any water quality considered suitable for human consumption.

 Technical Data