set key outside bottom
set key box
set key top left

set terminal png
set output 'zone.png'
set xdata time
set timefmt "%b %d %H:%M:%S %Y"
set title "Zone Activity, Outside Temperature, Floor Water Temperature" 
set ylabel "Fahrenheit"
set yrange [1:150]
set xrange [*:*]
set xlabel " "
set grid
set size 1.2 ,0.5

heat_on(a, b, c, d) = int(a) | int(b) | int(c) | int(d)

#     'zone.data' using 1:(($5 | $7 | $8 | $9) * (1 - $6) * 35) t "Gas Heat" with points lc rgb "blue", \

plot 'munchkin_temperature.data' using 1:(($6 * 1.8) + 32) t "Supply" with lines, \
     'munchkin_temperature.data' using 1:(($5 * 1.8) + 32) t "Return" with lines, \
     'housetemps.input' using 1:5 t "Outside" with lines lc rgb "black", \
     'zone.data' using 1:($9 * 33) t "Back Bedroom" with points lc rgb "pink", \
     'zone.data' using 1:($8 * 26) t "Middle Bedroom" with points lc rgb "blue", \
     'zone.data' using 1:($7 * 19) t "Front Study" with points lc rgb "red", \
     'zone.data' using 1:($5 * 12) t "Rest of House" with points lc rgb "green", \
     'zone.data' using 1:(heat_on($5,$7,$8,$9) * (1 - $6) * 5) t "Gas Heat" with points lc rgb "blue", \
     'zone.data' using 1:(heat_on($5,$7,$8,$9) * $6 * 5) t "Solar Heat" with points lc rgb "brown"