Addmxnal spaces in home a

Claim 1

A HEAT SAVER COMPRISING A PIPE, A HOLLOW CASING ENVELOPING SAID PIPE, THE ENDS OF THE PIPE EXTENDING OUTWARDLY OF THE CASING FOR CONNECTION TO THE ENDS OF A BREAK IN A SMOKE PIPE TO RECEIVE HOT FLUE GASES THEREFROM TO FLOW THROUGH SAID PIPE, SAID CASING HAVING AN AIR INLET AT ONE SIDE AT THE TOP THEREOF, SAID CASING HAVING AN AIR OUTLET AT THE OTHER SIDE AT THE BOTTOM THEREOF, A SLEEVE CONCENTRICALLY POSITIONED IN SPACED RELATION INSIDE THE PIPE, SAID SLEEVE HAVING SPACED ELONGATED SLOTS INTERSECTING ONE END EDGE THEREOF, ELONGATED BAFFLE PLATES INSIDE SAID SLEEVE, SAID BAFFLE PLATES HAVING SPACED ELONGATED SLOTS INTERSECTING ONE END EDGE THEREOF, THE SLOTS IN THE SLEEVE INTERLOCKED WITH SOLID PORTIONS OF THE BAFFLE PLATES, THE SLOTS IN THE BAFFLE PLATES INTERLOCKED WITH SOLID PORTIONS OF THE SLEEVE, THE OUTER ENDS OF THE BAFFLE PLATES BEING FASTENED TO THE PIPE, AND A BLOWER OPERATIVE TO PROPEL AMBIENT AIR THROUGH SAID INLET, CASING AND OUTLET.