If I buy a MVSupply radiant package , what else do I need to install it?
A. For the radiant packages for concrete slabs, you will need a main supply line and a main return line between your heat source and the manifold assembly, which is usually 3/4″ or 1″ copper, depending on the size of your manifold (for longer runs between the heat source and the manifolds, 3/4″ or 1″ BPex is usually used). You will also need an expansion tank that usually installs on a “Tee” fitting on your main supply line. And you will need a thermostatic mixing valve (TMV) unless your heat source can supply the lower temperature water required for radiant floor heat (generally 90 F to 110 F). If you’re using a std domestic water heater as your heat source, you need to set the water heater on high and install a TMV (water heaters have zero storage capacity if you set them to low to try to avoid installing a TMV). For sub-floor radiant packages you will also need tubing clamps or heat transfer plates, depending on your application.
