www.desatech.com 116226-01A4PRODUCT FEATURESThese are a few facts that can help you understand and enjoy yourdirect-vent fireplace:• The venting system may be routed to the outside of your homein several ways. It may vent through the roof (vertical) or it mayvent to an outside/exterior wall (horizontal). The vent pipe instal-lation is very important to allow for proper operation. You mustfollow the venting instructions very carefully for either verticalor horizontal applications.• This fireplace may be installed in any room of your house providedall local codes and these installation instructions are followed.• This fireplace requires a wall switch, hand-held remote or wallthermostat (millivolt) for operation (see Accessories, page 36).• This fireplace does not require electricity to operate.• Only the blower requires electricity if installed and if you plan toinstall the blower at a later date, do not forget to wire the outletat the bottom of the fireplace when framing.• A piezo ignitor and ceramic electrode create spark to ignite thepilot light. It does not require any matches, batteries or any othersources of ignition to light the pilot.• Each time you turn on your fireplace, you may notice someamount of condensation on the inside of the fireplace glass. Thisis normal and will disappear after 10-20 minutes of operation.• Your direct-vent gas fireplace system (fireplace and venting) is abalanced and sealed gas operating unit. It requires approximately 10-20 minutes of operating time before the flame pattern stabilizes.PRE-INSTALLATIONPREPARATIONLOCATION AND SPACE REQUIREMENTSDetermine the safest and most efficient location for your DESAdirect-vent fireplace. Make sure that rafters and wall studs are notin the way of the venting system. Choose a location where the heatoutput is not affected by drafts, air conditioning ducts, windowsor doors. Figure 2 shows some common locations. Be aware of allrestrictions and precautions before deciding the exact location foryour fireplace and termination cap.When deciding the location of your fireplace, follow these rules:• Do not connect this fireplace venting to a chimney flue servinga separate solid-fuel burning fireplace or appliance.• Due to high temperatures, do not locate this fireplace in high trafficareas, windy or drafty areas or near furniture or draperies.• Proper clearances must be maintained.• If your fireplace is to be installed directly on carpeting, vinyl tileor any combustible material other than wood, it must be installedon a metal or wood panel extending the full width and depth ofthe fireplace. See Figure 3.• Your fireplace is designed to be used in zero clearance instal-lations. Wall or framing material can be placed directly againstany exterior surface on the back, sides or top of your fireplace,except where standoff spacers are integrally attached. If standoffspacers are attached to your fireplace, these spacers can be placeddirectly against wall or framing material. See framing details onpage 5.• If you plan on installing a television or entertainment center re-cessed above your fireplace, it is recommended that you maintaina minimum 18" above top of louver opening.• When locating termination cap, it is important to observe theminimum clearances shown in Figure 7, page 6.• If recessing into a wall, you can avoid extra framing by position-ing your fireplace against an already existing framing member.• Do not recess termination cap into a wall or siding.• You may paint the termination cap with 450ºF (232ºC) heat-resistant paint to coordinate with the exterior finish.• There must not be any obstruction such as bushes, garden sheds,fences, decks or utility buildings within 24" from the front of thetermination cap.• Do not locate termination cap where excessive snow or icebuild up may occur. Be sure to clear vent termination area aftersnow falls to prevent accidental blockage of venting system.When using snow blowers, do not direct snow towards venttermination area.PRODUCT FEATURESPRE-INSTALLATION PREPARATIONLocation and Space RequirementsFigure 2 - Common Fireplace LocationsFlush with a wallThrough exterior wallenclosed in a chase CornerinstallationFigure 3 - Fireplace Bottom DimensionsDRWFW21 1 /8 "29"41"