Heatiator NB4842M, NB4236MI Finishing, A. Mantel Projections, B. Facing Material, Fire Risk

11 Finishing

A. Mantel Projections

Figure 11.1 shows the minimum vertical and corresponding maximum horizontal dimensions of appliance mantels or other combustible projections above the top front edge of the appliance.

B. Facing Material

WARNING

Fire Risk

Do NOT obstruct air inlet or outlet grilles.

Do NOT modify grilles.

5

4

3 5-1/26-1/4

5

32-1/2 in. minimum

to ceiling

					18
		16			17
						16
	14	15			15-	1/4
13			14-	1/2
		13-	3/4
12	13

11 12-1/4

10 11-1/2

9 10-3/4

8		10
7	9-	1/4

6 8-1/2

7-3/4

Measured from top of hood (in inches)

•Modifying or covering grilles could cause temperature rise and fire hazard.

Finishing materials must not interfere with:

•Air flow through grilles or louvers.

•Operation of louvers or doors.

•Access for service.

Finish wall material may be combustible - Top and Sides

0 in.

Figure 11.1 Clearances to Mantels or other Combustibles above Appliance.

Top of

Appliance

Drywall

A

48 in.

(1219 mm)

B max.

Mantel Leg or Perpendicular Wall

A1 in. (25 mm) min. to perpendicular wall

B3-1/2 in. (89 mm) min. from fireplace opening to perpendicular wall

Figure 11.2 Mantel Leg or Wall Projections (Acceptable on both sides of opening)

0 in. 0 in.

High Temperature Sealant (300° F/149° C min.)

Top and Side Seal Joint

Figure 11.3 Noncombustible Facing Diagram

WARNING

Fire Risk

Finish all edges and fronts to clearances and specifications listed in manual.

•Metal appliance front may be covered with non- combustible material only.

•Do NOT overlap combustible materials onto appliance front.

•Install combustible materials only up to specified clearances on top, front and sides.

•Seal joints between the finished wall and appliance top and sides using only a 300° F minimum sealant.

24 Heatilator • Novus BV-Mesh • 4031-553 Rev F • 11/07