The solar heating panel or wall section matches and supplements {HEAD ~ the appearance} of {TAIL ~ adjacent standard wall surfaces} and a virtually unnoticeable transition from standard to solar heating wall surfaces is achieved 
of
The solar heating panel or wall section matches and supplements { HEAD ~ the appearance } of { TAIL ~ adjacent standard wall surfaces } and a virtually unnoticeable transition from standard to solar heating wall surfaces is achieved
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH