/3
1.0 PRE-INSTALLATION REQUIREMENTS
1.1 Masonry Fireplace Requirements
Themasonryfireplacemust meettheminimumcoderequirements,orNFPA 211ortheequivalentfora
safe installation. Contact your local Building Inspector for requirements in your area. An inspection of
the fireplace should include the following:
1. CONDITION OF THE FIREPLACE AND CHIMNEY:
Examine the masonry fireplace and chimney prior to installation, to determine that they are free
fromcracks,loosemortar,creosote deposits,blockage, orother signsofdeterioration. Ifevidence
of deterioration is noted, the fireplace or chimney should be upgraded prior to installation.
2. CHIMNEY CAPS:
Meshtypechimney capsmust haveprovisionforregularcleaning,or themeshshouldberemoved
to eliminate the potential of plugging.
3. LINER:
The chimney must have an acceptable 6" (152 mm) stainless steel chimney liner installed.
NOTE: The 2400 Insert is not approved for use with a positive flue connector into a masonry
flue.
4. ADJACENT COMBUSTIBLES:
The fireplace should be inspected to make sure that there is adequate clearance to combustibles,
both exposed combustibles to the top, side, and front as well as concealed combustibles, in the
chimneyandmantelarea. Yourlocal inspectorshouldhaveinformationonwhetherolderfireplaces
are of adequate construction.
5. OPENING SIZE:
Refer to “Suitable Fireplace Dimensions” (Sec. 2.2) for suitable size fireplace openings.
NOTE: A METAL TAG IS PROVIDED AND IS TO BE FASTENED TO THE BACK WALL OF THE
FIREPLACE, IF THE FIREPLACE HAS BEEN MODIFIED TO ACCOMMODATE THE
INSERT.
1.2 Venting Requirements
Theflue isa criticalcomponent toasatisfactory installation. Yourinsertwill attainitsbest performance
if installed with a flue that generates its own draft. The minimum venting requirement will be the
installationofa flueconnectorfrom theinsertinto thefirsttileofthechimney(see Figure2.3). If youare
using a masonry chimney, it is important that it be built in compliance with the specifications of the
National Building Code or other applicable standard having jurisdiction. It must be lined with fire clay
bricks, metal or clay tiles sealed together with fire cement (round flues are the most efficient). Ideally,
theinterior diameterof themasonry chimneyshouldbeidentical tothe insertsmokeexhaust. Youmay
also run a stainless steel liner inside the masonry chimney. A continuous 6" (152mm) stainless steel
liner from the top of the chimney to the insert’s smoke exhaust (see Figure 2.2) is the optimum system
and will provide the best performance, aswell as compensatefor poordraftsituations caused bylarge
