Thermador PROFESSIONAL PRO HARMONY PRG304GH Manuel D'installation page 9

Installation Clearances with High Shelf or Low Backguard
36¾" (933 mm) Max.
35⅞" (911 mm) Min.
as defined in the "National Fuel Gas Code" (ANSI Z223.1, Current Edition).
Clearances from non-combustible materials are not part of the ANSI Z21.1
scope and are not certified by CSA. Clearances of less than 12" (305 mm)
must be approved by the local codes and/or by the local authority having jurisdiction.
English 6
36" (914 mm) min.
to combustible
materials
28" (711 mm)
27¼" (692 mm)
High Shelf
Low Back
24⅝" (625 mm)
24" (610 mm)
max. recess depth
24¾" (629 mm)
23" (584 mm)
44⅞" (1140 mm)
Total Clearance
Figure 2: Installation Clearances with a High Shelf or Low Backguard
Combustible
Materials
2¼" (57 mm)
10¾"
(273 mm)
9" (229 mm)
22"
(559 mm)
Combustible
Back Wall