Desa BHDV41N/P, BHDV37N/P Installation for Vertical Termination, Flat Ceiling Installation

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® (B)HDV37N/P AND (B)HDV41N/P

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

VENTING INSTALLATION

Continued

INSTALLATION FOR VERTICAL TERMINATION

NOTICE: Use rigid pipe only. Flex venting is not to be used with a vertical termination.

1.Determine the route your vertical vent- ing will take. If ceiling joists, roof rafters, or other framing will obstruct the venting system, consider an offset (see Figure 22) to avoid cutting loadbearing members. Note: Pay spe- cial attention to these installation in- structions for required clearances (air space) to combustibles when passing through ceilings, walls, roofs, enclo- sures, attic rafters, etc. Do not pack air spaces with insulation. Also note maxi- mum vertical rise of the venting sys- tem and any maximum horizontal off- set limitations. Offsets must fall within the parameters shown in Figure 9 on page 6.

2.Set the fireplace in desired location. Drop a plumb line down from the ceil- ing to the position of the fireplace exit flue. Mark the center point where the vent will penetrate the ceiling. Drill a small locating hole at this point.

Drop a plumb line from the inside of the roof to the locating hole in the ceil- ing. Mark the center point where the vent will penetrate the roof. Drill a small locating hole at this point.

Roof

Flashing

Wall Strap

45° Elbow

Ceiling Firestop

Figure 22 - Offset with Wall Strap and 45°

Elbows

Flat Ceiling Installation

1.Cut a 10" square hole in the ceiling us- ing the locating hole as a center point. The opening should be framed to 10"x10" (254mm x 254mm) inside di- mensions, as shown in Figure 13 on page 9 using framing lumber the same size as the ceiling joists. If the area above the ceiling is an insulated ceil- ing or a room, nail firestop from the top side. This prevents loose insulation from falling into the required clearance space. Otherwise, install firestop below the framed hole. The firestop should be installed with no less than three nails per side (see Figure 23).

2.Assemble the desired lengths of pipe and elbows necessary to reach from the fireplace flue up through the firestop. All connections must be sealed with high temperature silicone sealant as specified in the second warning state- ment on page 7. Be sure all pipe and elbow connections are fully twist- locked (see Figure 12, page 9).

3.Cut a hole in the roof using the locating hole as a center point. (Cover any ex- posed open vent pipes before cutting hole in roof.) The 10"x10" hole must be measured on the horizontal; actual length may be larger depending on the pitch of the roof. There must be a 1" clearance from the vent pipe to combus- tible materials. Frame the opening as shown in Figure 13 on page 9.

If area above is a room, install firestop above framed hole.

If area above is not a room, install firestop below framed hole.

Figure 23 - Installing Firestop

4.Connect a section of pipe and extend up through the hole.

Note: If an offset is needed to avoid obstructions, you must support the vent pipe every 3 feet. Use wall straps for

this purpose (see Figure 22). Whenever possible, use 45° elbows instead of 90° elbows. The 45° elbow offers less re- striction to the flow of the flue gases and intake air.

5.Place the flashing over the pipe section(s) extending through the roof. Secure the base of the flashing to the roof and framing with roofing nails. Be sure roofing material overlaps the top edge of the flashing as shown in Figure 22. There must be a 1" clearance from the vent pipe to combustible materials.

6.Continue to add pipe sections until the height of the vent cap meets the mini- mum building code requirements de- scribed in Figure 9 on page 6. Note: You must increase vent height for steep roof pitches. Nearby trees, adjoining rooflines, steep pitched roofs, and other similar fac- tors may cause poor draft or down-draft- ing in high winds. Increasing the vent height may solve this problem.

7.Twist-lock the vent cap onto the last section of vent pipe and seal outer pipe connection with high temperature sili- cone sealant as specified in the second warning statement on page 7.

Note: If the vent pipe passes through any occupied areas above the first floor, including storage spaces and closets, you must enclose pipe. You may frame and sheetrock the enclo- surewithstandardconstructionmaterial.Make sure and meet the minimum allowable clear- ances to combustibles. Do not fill any of the required air spaces with insulation.

Cathedral Ceiling Installation

1.Remove shingles or other roof cover- ing as necessary to cut the rectangular hole for the support box. Mark the out- line of the cathedral ceiling support box on the roof sheathing using the locat- ing hole as a center point.

2.Cut the hole 1/8" larger than the sup- port box outline (see Figure 24, page 13).

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Contents For Your Safety For Your Safety What to do if YOU Smell GASBHDV37N/P, HDV37N/P BHDV41N/P, and HDV41N/P Safety Information DIRECT-VENT Fireplace NATURAL/PROPANE/LPProduct Features Product IdentificationLocal Codes Glossary TermsPRE-INSTALLATION Preparation ClearancesLocation and Space Requirements Framing and FinishingPRE-INSTALLATION Preparation General Venting Location of Vent TerminationGeneral Venting Venting Installation Installation PrecautionsInstallation Planning Installing Vent System in a ChaseInstallation for Horizontal Termination Snorkel TerminationVent Pipe Connections Horizontal Termination Configurations Horizontal VentingVenting with Two 90 Elbows Installation for Vertical Termination Flat Ceiling InstallationCathedral Ceiling Installation Vertical Termination Configurations Vertical Horizontal H 1 + Min Max 20 maxVertical Venting High Altitude Installation Parts Lists for Venting Kits and ComponentsVanguard Rigid Venting Vanguard Flexible VentingFireplace Installation Installing Optional Blower AccessoryInstalling GA3700/DA3610T Blowers Check GAS TypePlug in blower power cord Installing GAS Piping to Fireplace Location Installation Items NeededConnecting Fireplace to GAS Supply Pressure Testing Gas Supply Piping SystemChecking GAS Connections Pressure Testing Fireplace Gas Connections Close manual shutoff valve see Fig- ureInstalling Optional Wall Mounted Thermostat GWMT1 Back View of Thermostat BaseREMOVING/REPLACING Glass Door Attaching Magnetic Decorative Brass Strips HDV OnlyInstalling Optional Brick Liner D8037/D8041 Installing Rear Brick Panel and Retainer BracketsInstalling LOGS, Lava Rock and Glowing Embers Fireplace Models BHDV37N/P and BHDV41N/PInstalling Log Assembly No Fireplace Models HDV37N/P and HDV41N/POperating Fireplace Operating Optional Blower Accessory Ghrc Series OperationGhrct Series Operation Pilot Assembly Inspecting BurnersOperating Optional GWMT1 Wall Mounted Thermostat Burner Flame PatternCleaning and Maintenance Glass DoorPilot and Burners LogsTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Gas leak. See Warning statement Replacement Parts Wiring DiagramTechnical Service Service HintsSpecifications BHDV/HDV37N BHDV/HDV37P BHDV/HDV41N BHDV/HDV41PAccessories Illustrated Parts Breakdown BHDV37N BHDV41N36Parts List DIRECT-VENT Fireplace BHDV37N BHDV41NBHDV37P BHDV41P36 DIRECT-VENT Fireplace BHDV37P BHDV41P HDV37N DIRECT-VENT Fireplace HDV37N and HDV41N HDV37P HDV41P DIRECT-VENT Fireplace HDV37P and HDV41P Warranty Information

BHDV41N/P, BHDV37N/P, HDV37N/P, HDV41N/P specifications

The Desa HDV41N/P, HDV37N/P, BHDV37N/P, and BHDV41N/P are modern heating units designed to deliver efficient warmth and comfort in various residential and commercial spaces. These models are noted for their advanced features and technologies, which combine functionality and aesthetics.

One of the main features of these units is their energy efficiency. They utilize state-of-the-art technology to provide warmth while minimizing energy consumption. This makes them an environmentally friendly choice, ensuring that homeowners can enjoy a cozy atmosphere without significantly increasing their energy bills.

The design of the Desa series models is characterized by their sleek and attractive appearance. They are available in various finishes, allowing homeowners to choose a design that complements their interior décor. This not only enhances the aesthetic appeal of the room but also ensures that the heating unit blends seamlessly into the space.

Another significant characteristic of the Desa models is their versatile heating capabilities. They can accommodate a variety of room sizes, providing adequate heat regardless of the environment. Whether used in larger living areas or smaller spaces, these units are engineered to maintain a consistent and comfortable temperature.

The units come equipped with user-friendly controls, allowing for easy adjustments and optimal temperature settings. Many of the models feature programmable thermostats, enabling users to schedule heating cycles according to their lifestyles. This contributes to increased comfort and further adds to energy savings.

Safety is also a primary concern with the Desa heating units. They come with built-in safety features, such as automatic shut-off mechanisms and advanced flame sensors. These safety measures ensure peace of mind while using the units, safeguarding against potential hazards.

Additionally, the units are designed for easy installation and maintenance. Their straightforward installation process is complemented by durable construction, which minimizes the likelihood of breakdowns. Regular maintenance is simplified, allowing users to keep their heating systems in excellent working condition without significant effort.

In summary, the Desa HDV41N/P, HDV37N/P, BHDV37N/P, and BHDV41N/P heating units combine sophisticated technology, aesthetic design, versatility, user-friendly controls, safety features, and low maintenance requirements. They stand out as a superior choice for anyone looking to enhance their indoor climate while being mindful of energy consumption and design aesthetics.
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