Heat capacity - kj of thermal panels

[Impuls]

Hey all,

I've been searching the forum and internet but couldn't find a simple anwer on my question :

Thermal panels with a heat capacity of 8.4kJ or 10.8kJ of 1.5kJ

As I understood heat capacity is the amount of energy that is required to heat up something.
So I'd say less is better.
The lower that number, the faster you'll heat up your water the minute there's some sun.
Higher numbers will react slower but are capable of holding the heat longer which I think will results in higher water tempature
with the same amount of energy.

But what's better ? Or does it all depends on your geo location and weather type ?

Thanks
Impuls

[martin]

It is no way that simple - getting bogged down with those sorts of figures will have you disappearing up your own exhaust pipe none the wiser...........