Grant Sahara Solar Collectors have a total
area of 2.32m2. As a rule of thumb,
when sizing a system, you should
allow 1.0-1.3m2 of collector
area, per person.
Cylinder requirements are
50-60 litres capacity per m2 of
collector area. To simplify this,
for a 2-Collector system of
4.64m2, you would require
a cylinder of approximately
200 litres. This would be
sufficient for 4 people and
satisfy up to 70% of your hot
water demand per annum.
Things to consider:
• Location of building
• Orientation of building
• Angle of Inclination (roof)
• % of Solar Contribution
• Hot water requirements
• Volume of system
• Shade
• Collector array in m2
• Size of cylinder
• Pipework requirements