Am in the process of getting quotes for solar hot water on my house. Any opinions on:
a) whether the solar heated water should seed an existing hot water heater or whether I should (as one contractor suggests) replace the water heater with a tankless heater (i.e the only water stored is the solar heated water)
b) pros and cons of having the roof where the collector is located re-finished before installation - one contractor seems to think its no big deal to remove the collector / tubes while a roofer works, the other thinks we should have the roof done first...
Thanks...