You should be able to answer the following
questions:
-
Is the supplier and or installer listed with SESSA?
- Is
the SWH system a SABS tested and passed system?
-
Can the supplier provide a Q factor?
-
Are you prepared to have a tank on the roof?
-
Have you looked at measures to reduce hot water consumption?
-
What size of system do you require?
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What is the efficiency of the system?
-
What are the likely daily kWh savings?
-
What does the system cost?
-
What is the payback period?