Note:

# Based on revised criteria starting from 1 August 2008.

@ Based on latest criteria starting from 1 May 2011.

Details please refer to scheme document.

* Water Heater Category:

1 = Small-size unvented electric storage water heaters for domestic use with a rated capacity not exceeding 50 litres.
2 = Small-size open outlet electric storage water heaters for domestic use with a rated capacity not exceeding 50 litres.
3 = Horizontal tank type electric storage water heaters for domestic use with a rated capacity exceeding 50 litres and up to 300 litres.
4 = Vertical tank type electric storage water heaters for domestic use with a rated capacity exceeding 50 litres and up to 300 litres.

Market availability for models please approach respective manufacturers / agents for further enquiry.