Electric baseboard heating system

Claim 1

A BASEBOARD HEATING SYSTEM FOR HEATING A PLURATLITY OF SEPARATE ZONES IN A BUILDING COMPRISING, A. A CONDUIT FORMING A CLOSED CIRCUIT AND EXTENDING THROUGH EACH OF SAID ZONES, B. A PUMP FOR CIRCULATING FLUID THROUGH SAID CONDUIT, C. SEPARATE ELECTRIC RESISTANCE HEATING ELEMENTS IN AT LEAST TWO OF SAID ZONES AND POSITIONED ON THE EXTERNAL SURFACE OF SAID CONDUIT IN HEAT EXCHANGE RELATIONSHIP THEREWITH, D. MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID RESISTANCE ELEMENTS, E. A THERMOSTATIC CONTROL IN EACH ZONE HAVING A HEATING ELEMENT AND RESPONSIVE TO THE AIR TEMPERATURE IN THAT ZONE TO CONTROL THE SUPPLY OF CURRENT TO THE HEATING ELEMENT IN THE SAME ZONE, F. HEAT DISTRIBUTING MEMBERS SPACED ALONG SAID CONDUIT IN HEAT EXCHANGE RELATIONSHIP WITH SAID CONDUIT TO TRANSFER HEAT BY RADIATION AND CONVECTION FROM SAID FLUID IN SAID CONDUIT TO AIR CIRCULATING AROUND SAID MEMBERS, AND G. ENCLOSURES FOR SAID HEATING ELEMENTS AND CONDUIT WHICH DIRECT AIR CONVECTION CURRENTS TO FLOW AROUND SAID ELEMENTS AND CONDUIT IN HEAT EXCHANGE RELATIONSHIP THEREWITH AND TO FLOW THROUGH THE ZONES IN WHICH SAID HEATING ELEMENTS ARE POSITIONED.