This is my first pass at the radiant heat/domestic hot water/solar assist design. I'm relieved that it all fits in our utility closet, although I'm still unsure as to how the city inspectors are going to feel about it.
Since our house had a broken floor furnace, we had a great opportunity to install a radiant heat system, as we had to install some sort of heater. The word on the street is that radiant heat is best... so I've been studying the various ways to do it. I suppose hiring someone to install it would have been the easiest, but threading thousands of feet of pex tubing under the floors is a labor intensive process so it's quite expensive to have done. We work for free, so there is much money to be saved by doing ourselves. Also, something with this many tubes and pumps and valves is just too tempting for me to just hand over to someone else.
In addition to the radiant heat, I plan on installing a solar water heater. Some of the plumbing in the picture is for the solar heating loop. The solar water heater is sized larger than a typical domestic hot water only panel, as it can contribute to the house heating because of the storage tank.
Next year when we're (hopefully) living in our new warm house, please ask me how the system works because if it actually does I'm going to be quite eager to explain!
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