A hydronic heater typically has a boiler placed outside the building to heat water to a temperature that is thermostatically controlled. The boiling water is them pumped to convectors or panel radiators that are placed indoors. The heat from the boiling water flows directly into the room, spreading warmth all over. To boil the water people use natural gas, LPG, solid fuel or just electricity. If you choose a gas-fired system, a low water content boiler is recommended. For the panels, pressed steel panels are most efficient as they respond faster than cast-iron panels…. Continue Reading