Abstract: Systems, apparatus, devices and methods of using and mounting solar collectors and photovoltaic collectors in gutters or directly along fascia and eaves and on architectural ledges on buildings, along building walls at various heights above the ground, as well as in ground engaged collectors for providing heated water, power and/or lighting. The collectors can have a pair of conduits/tubes for passing water therethrough. Each of the collectors can be attached to one another by mateably interlocking male and female connectors on the sides of each collector to one another.

Abstract: Hold-down clips for insulation. The clips have U-shaped bases for wrapping about the exposed edges of framing members such as 2×4s, 2×6s, 2×8s, and 2×10s, and the like, that are used under roofs, ceilings, floors and walls. The clips have side extending arms that abut against the insulation materials and can include protruding portions which further press the insulation material in place. The U-shaped bases can further include inwardly protruding bent tabs, dimples, and spike portions for further locking the clips to the framing members. The clips can be easily installed without the need for tools such as hammers, nail guns, and staple type guns, as well as not need any additional fasteners such as nails, screws, and staples, in order to be installed. An optional through-hole in the base portion can allow for an extra fastener to be used where the through-hole provides direct guidance for placing the optional fastener.