Solar Water Heaters & Thermal Systems from China
1 resources tagged with "Solar Thermal"
Solar thermal products — chiefly evacuated-tube and flat-plate solar water heaters — are produced in volume across Shandong and Jiangsu, with tank sizes from 100L to 300L and 10–30 heat-pipe tubes. For the EU market, the relevant credential is EN 12975 and the Solar Keymark certification, which is what distributors look for over a generic CE mark. OEM MOQs commonly start at 50 units, with production lead times of 30–45 days.
When sourcing solar water heaters, the common pitfall is poor vacuum quality in the evacuated tubes, which collapses thermal efficiency within a year. We check the tube vacuum and tank insulation thickness on samples rather than relying on the spec sheet.
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FAQ
What certification do solar water heaters need for the EU?
EN 12975 with Solar Keymark certification is the recognized standard for the European market, alongside CE marking.
What is the MOQ for OEM solar water heaters?
Most factories quote a minimum of around 50 units for OEM evacuated-tube water heaters, with tank size and tube count configurable per order.
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