Instruction manual
10
6.  Louvers and Grilles of Ventilation Ducts
a.  All outside openings should be screened and louvered. 
Screens used should not be smaller than 1/4 inch mesh. 
Louvers will prevent the entrance of rain and snow.
b.   Free area requirements need to consider the blocking 
effect of louvers, grilles, or screens protecting the 
openings. If the free area of the louver or grille is not 
known, assume wood louvers have 20-25 percent free 
area and metal louvers and grilles have 60-75 percent 
free area.
c.  Louvers and grilles must be xed in the open position, or 
interlocked with the equipment to open automatically 
during equipment operation.
D.  DIRECT VENT CONFIGURATIONS requires: 
1.  Beckett NX Burner
2.  Direct Vent Conversion Kit
3.  Double Wall Flex Oil Vent Pipe (FOVP)
Boiler 
Model No.
Beckett NX
Oil Burner
Part No.
Direct Vent 
Conversion Kit 
Part No.
FOVP Carton Part 
No.
MPO-IQ147 100240-02
102130-02
100211-02 - 5 ft.
100212-02 - 10 ft.
MPO-IQ189 100240-03
100213-02 - 15 ft.
100214-02 - 20 ft.
MPO-IQ231 100240-04 102130-03
100211-03 - 5 ft.
100212-03 - 10 ft.
100213-03 - 15 ft.
100214-03 - 20 ft.
TABLE 2: DIRECT VENT CONFIGURATION 
   COMPONENTS
I. PRE-INSTALLATION (continued)










