| Think I am going to put some underfloor radiant in "This old House". Start with a room or two and work up. Going to get a wood boiler, put on a sidearm heat exchanger for the hot water, and a loop in a couple or 3 rooms. I now wish I didn't have sprayfoam on the bathroom floor. So, I will need a pump controller, pump, thermostat, mixing valve, manifold with flow contollers for more than one circuit. What else? This will be a non pressurized system, so, shouldn't need an expansion tank, correct? |