Fellow plumbers, Like many of us here wouldnt like to admit it, but, i dont know everything. Havent saw it all yet either. Id like to think that heating is one of my specialties, and its my favorite thing to do in the trade. So, to continue my education i recently took a course on the basics on solar heat. Its not overly popular where i live, but because of power rates and oil costs sky rocketing here, its starting to come up in conversation and i want to be prepared. Its also got me curious, since building my first home is soon coming. I was thinking of just having it do my domestic hot water, but since infloor heat is a must, it wouldnt be a bad idea there either. So i was wonderin who here has experience in solar heating, and thoughts on the best type of system for a cold climate? Thanks!