Plumbing and Hydronic Heating expert for residential, and commercial plumbing services, servicing the Halifax, Sackville and Dartmouth regions in new construction, renovations, remodeling kitchen and bathroom projects, plumbing and heating updated. Hydronics is the use of water as a heat-transfer medium. Hydronic heating systems have a boiler (or water-to-water or air-to-water heat pump) that heats water that is then pumped through pipes throughout the house or building. Often when people think of hydronic heat systems they think of old-time cast iron radiators or baseboard convectors. This in turn is often associated with rooms that overheat and are very dry air.