4d) If the entered selection is 4, the screen will show an
input/output mask as shown in CRT 12. Enter the corresponding
data on each of the fields (see Appendix A) that are shown in
Table D.
 Once the last datum has been entered and there are no
mistakes press the <End> key. A mask as shown in CRT 13 will be
displayed.
 i) Typing Y the computations will be performed and a mask
as shown in CRT 14 will be displayed on the screen. At the point
where the cursor is blinking you can enter Y or N. Entering Y
the MAIN MENU will be displayed. Entering N sends the cursor to
the first input field and new data can be entered.
 ii) Typing N sends the cursor to the last input field.
------------------------------------------------------
 Table D
Wall Height: 8.0 ft
Lower Wall Height: 2.0 ft
Upper Wall Height: 6.0 ft

House Width: 40.0 ft
House Length: 96.0 ft
Rafter Length: 44.9 ft
Gable Height: 3.0 ft
U Factor Of Lower Wall Material: 1.1 BTU/hr. F ft2
U Factor Of Upper Wall Material: 1.1 BTU/hr. F ft2
U Factor Of Rafter Material: 1.1 BTU/hr. F ft2
U Factor Of Roof Material: 1.1 BTU/hr. F ft2
U Factor Of Perimeter: 0.8 BTU/hr. F ft
Number Of Individual Houses: 1
Number Of Air Exchanges Per Hour: 1.5
Temperature Difference: 60.0 F
----------------------------------------------------

 4e) If the entered selection is 5, the screen will show an
 input/output mask as shown in CRT 15. Enter the corresponding
 data on each of the fields (see Appendix A) that are shown in
 Table E.
 ------------------------------------------------------
 Table E
 ------------------------------------------------------
 House Width: 40.0 ft
 House Length: 96.0 ft
 Rafter Length: 49.7 ft
 Gable Height: 10.0 ft
 U Factor Of Rafter Material: 1.1 BTU/hr. F ft2
 U Factor Of Roof Material: 1.1 BTU/hr. F ft2
 U Factor Of Perimeter: 0.8 BTU/hr. F ft
 Number Of Air Exchanges Per Hour: 1.5
 Temperature Difference: 60.0 F
 -------------------------------------------