of a manifold 10 having a fluid inlet port 11 and a fluid outlet port 12 located within the manifold are a plurality of heat exchanger means 14 as can be seen the heat exchanger means 14 are provided with expanded heat exchange surfaces or fins 15 attached to the manifold 10 are a plurality of vacuum jacketed tubular solar collectors 16 as is shown in fig1 and 2 the vacuum jacketed tubular solar collectors 16 are positioned such that in use they extend downwardly from manifold 10 and they are of course in operable communication with heat exchanger means 14 the tubular collectors 16 have been shown partially broken away and in cross section in order to more clearly illustrate the structure of the tubular collectors 16 and their connection to the manifold 10 as can be seen throughout the several drawings and views the vacuum jacketed tubular collectors 16 have an outer light transparent tube 17 of a convenient length say from 4 to 7 feet and preferably of standard diameter similar to fluorescent light tube for example 2 34 o d within the exterior tube 17 and extending at a first end therebeyond is an inner tube 18 obviously of lesser diameter than the outer tube 17 the inner tube 18 is secured within the outer tube 17 such that the space therebetween can be and is evacuated thus outer tube 17 provides.