home improvements …

if you look at energy demand in your home, there are several big consumers – some to heat, some to cool, some to illuminate, and the rest for TV, PC, VCR, Cooking etc

why not have a BIG source of HOT water, COLD water and the rest in electricity?

for example, the ‘cold’ source could consist of a large block of ice, and gets used for your fridge as well as your A/C. the heat gets drawn from it with a heat-pump, into the ‘hot’ source, that consists of a very large tank filled with very hot water, that supplies you with water for your shower and acts as a storage for your heating needs during a cold night

in short: all systems should work together – one’s waste-heat could be another’s heat-source!