What are the heating and water systems for your leed platinum demo house?
I saw the article on the CaGBC site regarding the Edelweiss house where it indicated "a hydronic radiant floor and an air source heat pump". Can you post more details on which systems were used? For example, is the ASHP being used to heat the fluid in the radiant flooring? If not, what system was used for that? Also, what system was used for domestic hot water?