# awk script 
#
# the begin command is executed BEFORE anything else is done
BEGIN {FS=" ";
"date" | getline date;
print date
}
#
{N=N+1}
{if(N==1) {printf "Heating analysis of an oil-heated residential home.\n";
printf "Quick and dirty method based on oil consumption data.\n";
printf "Oil Net Heat Value implicilty includes system efficiency.\n";
#
print " ";
print "#----------------------Input---------------------#"}}
{if($1=="Net") {OHV=$4;print$0}}
{if($1=="Gallons") {oilgals=$3;print$0}}
{if($1=="Time") {mths=$3;print$0}}
{if($1=="T(avg,inside)") {Tin=$2;print$0}}
{if($1=="T(avg,outside)") {Tout=$2;print$0}}
{if($1=="T(min,outside)") {Tmin=$2;print$0}}
{if($1=="Cost") {dolspergal=$4;print$0}}
{if($1=="COP") {COP=$2;print$0}}
{if($1=="$$/kW-hr") {dolsperkwhr=$2;print$0}}
{if($1=="Installation") {installcost=$3;print$0}}
#
END {
#
{totheatloss=oilgals*OHV}
{oildolsmth=oilgals*dolspergal/mths}
{avgHTrate=totheatloss/mths/24./30.}
{UA=avgHTrate/(Tin-Tout)}
{coldayloss=UA*(Tin-Tmin)}
{HPelectr=avgHTrate/COP/3412}
{HPcost=HPelectr*24*30*dolsperkwhr}
{savings=oildolsmth-HPcost}
{brkeven=installcost/savings/mths}
#
{print" "}
{print "#----------------------Output--------------------#"}
{printf("%-24s %12.0f\n","Oil $/mth",oildolsmth)}
{printf("%-24s %12.0f\n","Heat BTU/hr",avgHTrate)}
{printf("%-24s %12.0f\n","UA",UA)}
{printf("%-24s %12.0f\n","Cold Day BTU/hr",coldayloss)}
{printf("%-24s %12.2f\n","Heat Pump kWatts",HPelectr)}
{printf("%-24s %12.0f\n","Heat Pump $/mth",HPcost)}
{printf("%-24s %12.0f\n","Savings $/mth",savings)}
{printf("%-24s %12.1f\n","Breakeven years",brkeven)}
#
{print" "}
{print "#.......................End of File..............#"}
}