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4049-229C EDV Series.indd - At Andiron Fireplace Shop

4049-229C EDV Series.indd - At Andiron Fireplace Shop

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C. Install the Ceiling Firestop<br />

A ceiling fi restop MUST be used between<br />

fl oors and attics.<br />

• Frame opening 9 in. x 9 in. (229 mm x<br />

229 mm) whenever the vent penetrates<br />

a ceiling/floor (see Figure 8.3).<br />

• Frame the area with the same sized lumber<br />

as used in ceiling/fl oor joist.<br />

• The ceiling fi restop may be installed above<br />

or below the ceiling joists when installed<br />

with a attic insulation shield. It must be<br />

under joists between fl oors that are not<br />

insulated. Refer to Figure 8.4.<br />

• Secure with three fasteners on each side.<br />

WARNING! Risk of Fire! DO NOT pack<br />

insulation around the vent. Insulation must be<br />

kept back from the pipe to prevent overheating.<br />

30<br />

Figure 8.3 Installing Ceiling Firestop<br />

Ceiling firestop<br />

installed below ceiling.<br />

Figure 8.4 Installing the <strong>At</strong>tic Shield<br />

Heatilator • Eclipse • <strong>4049</strong>-229 Rev C • 06/08<br />

Install attic insulation<br />

shields before<br />

or after installation<br />

of vent system.<br />

3 fasteners<br />

per side<br />

<strong>At</strong>tic Above<br />

9 in. (229 mm)<br />

9 in.<br />

(229 mm)<br />

Hole should measure<br />

9 in. x 9 in.<br />

(229 mm x 229 mm)<br />

inside to inside<br />

Ceiling firestop<br />

installed above ceiling.

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