Rough Framing Dimensions - Empire Comfort Systems BF28(B,C,G)M(N,P)-5 Installation Instructions Manual

Bay Window Mantis with
PV-4H
Short Top Cover Kit
* When using a 2" radius 90° street ell on the flue exhaust, add 5-1/2".
Bay Window Mantis with
PV-2H
Slim Top Cover Kit
* When using a 2" radius 90° street ell on the flue exhaust, add 5-1/2".
Fireplace Mantis
* When using a 2" radius 90° street ell on the flue exhaust, add 5-1/2".
Page 24

ROUGH FRAMING DIMENSIONS

Figure 28
Single Vent
A 8-1/2" minimum*
B
C
Single Vent
A 13-1/2" minimum*
B
C
Single Vent
A 19-1/2" minimum*
B
C
Direct Vent and
Colinear Vent
8-1/2" minimum*
25-1/4" minimum
27" maximum when using PVE-1 or PVE-2 Surround Kits
28-1/2" minimum, 33" minimum recommended for service
34-1/2" maximum when using PVE-1 Surround Kit
37" maximum when using PVE-2 Surround Kit
Direct Vent and
Colinear Vent
13-1/2" minimum*
25-1/4" minimum
27" maximum when using PVE-1 or PVE-2 Surround Kits
28-1/2" minimum, 33" minimum recommended for service
34-1/2" maximum when using PVE-1 Surround Kit
37" maximum when using PVE-2 Surround Kit
Direct Vent and
Colinear Vent
19-1/2" minimum*
25" minimum
27-3/4" maximum when using FGK28 Surround Kit
28-1/2" maximum when using FFK28 Surround Kit
29-1/2" maximum when using FIK28 Surround Kit
32" maximum when using FWK28 Surround Kit
28-1/2" minimum, 31" recommended for service
33" maximum when using FGK28 Surround Kit
34" maximum when using FFK28 Surround Kit
37" maximum when using FIK28 Surround Kit
34" maximum when using FWK28 Surround Kit
Figure 29
Co-axial Vent
7-3/4" minimum 12-3/4" minimum
Co-axial Vent
12-5/8" minimum 17-7/8" minimum
Co-axial Vent
18-1/2" minimum 23-3/4" minimum
Flex Vent
Flex Vent
Flex Vent
30259-6-0314