Suitable thermal insulation is also provided on {HEAD ~ the rear or shade side} of the absorber plate to prevent undesirable heat loss from that side of {TAIL ~ the panel} 
Suitable thermal insulation is also provided on { HEAD ~ the rear or shade side } of the absorber plate to prevent undesirable heat loss from that side of { TAIL ~ the panel }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL