HI i am a student from Singapore , and i was told to calculate the amount of hot water needed to supply to a house. The design brief stated 1)Deliver 15 gallons of water at average 110°F (43°C) temperature within 10 minutes; 16 water draws during 1 week 2)Dishwasher: Successfully wash five loads of dishes during 1 week Whats does this specs means? 16 draws means 15 gallons X 16 in a week? also for dishwasher what does it means 5 loads?How do i know how many gallons would it use? Our lecturer had not idea and only asked us look online. I hope you guys could help us. Our rough idea is just solar thermal panels( compulsary thermal instead of PV) , maybe 2-3 panels and a tank. Tank sizing is a porblem too.