1. 15 years lifetime 5 years life guarantee
2. Perfect design and good quality
3.CE ISO9001 Solar keymark certified
-- Color steel covered appearance compact unpressurised solar water
Because of the larger proportion of hot water than cold water, cold
water flows downward and hot water goes upward. The water will be
heated continuously between water tank and vacuum tube. In other
wards, hot water always floats on cold water.
The hot-water flows to the water tank from the vacuum tubes.
Because of the proportion, cold water flows to vacuum tubes from
the water tank.
The cold water is heated in vacuum tubes. After it becomes hot
water, it flows to water tank again. The water circulates
constantly between water tank and vacuum tubes; the cold water in
water tank will be hotter and hotter.
Finally, all cold water will be heated to be hot water. This is the
heating course of cold water.
The inner tank is stainless steel 0.4mm thickness.
The out tank is color / the PVDF color / steel plate
Frame are galvanized steel or aluminum alloy
this model vacuum tubes we have different size.
Size: φ47(Dia)*10/15/17/20/25 tubes
------- φ58 (Dia)*8/10/12/15/18/20/25/30/32/35 tubes
Water tank capacity : 60-350 liters
The polyurethane layer 45-55 mm
1. Sold with CE SRCC ISO9001:2000 certificate
2. Request of customized type can be accepted. Unpressurised design
, simple structure and Dual-purpose brackets make it convenient in
use ( you can install it for both flat and inclined roof) --
3 . Longtime heat- preservation for about 60-70hours
4. Green, economical and energy-saving (cold water separated from
hot water and you do not need to install an electric backup heate
5.15 years lifetime 5 years lifespan
6.-Optional accessories ( assistant tank, electric backup heater,
intelligent controller ) they are optional instead of compulsory,
you can choose some or none according to actual needs .
7. stainless steel covered appearance looks more beautiful