Vermont Casting 33LDVR, 43LDVR, 39LDVR, 36LDVR Rear Wall Vent Installations Flex Vent Pipe, Step

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LDVR Series Direct Vent Gas Fireplace

Zero

Clearance

Sleeve

Firestop

CFM133

Fig. 17 Firestop and zero clearance sleeve in place.

Finished Wall

Vent Termi- nation

FP1005

Fig. 18 Side view of final unit location.

Rear Wall Vent Installations -

Flex Vent Pipe

Follow Steps 1 and 2 on Page 13.

Step 3

Install the 4” (102mm) flex vent pipe to the appliance collars described in “General Information Assembling Vent Pipes”, Page 11. If the installation requires a 45° angle, grasp the vent pipe close to the appliance collar and bend to 45°. DO NOT exceed 45°. (Fig. 19)

Install the 7” vent pipe in the same manner as Step 2.

NOTE: There must be a 1” (25 mm) rise in a 24” (610mm) length of flex vent.

Step 4

Assemble the flex vent to the collars on the termination as you did on the appliance.

Termination

Flex Section

Appliance Collars

FP1473

Fig. 19 Grasp the vent pipe close to the collar and bend to 45° angle. Do not exceed 45°.

Rise

FP1472

Fig. 20 There must be a 1/2” rise per foot length.

Vertical Sidewall Applications

Since it is very important that the vent- ing system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to.

The Vent Graph shows the relationship between vertical and horizontal side wall venting and will help to deter- mine the various dimensions allowable.

Minimum clearance between vent pipes and combustible materials is 1”(25 mm) on top, bottom and sides unless otherwise noted.

When vent termination exits through foundations less than 20” below siding outcrop, the vent pipe must flush up with the siding. It is always best to locate the fireplace in such a way that minimizes the number of offsets and horizontal vent length.

The horizontal vent run refers to the total length of vent pipe from the flue collar of the fireplace to the face of the outer wall.

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Contents Builder Rear Vent Direct Vent Table of Contents Please Review the Following Carefully Installation & Operating InstructionsLocating Your Fireplace 33LDVR 36LDVR 39LDVR 43LDVR Fireplace DimensionsFraming Dimensions Mantels Mantel ChartClearance to Combustibles Hearth33LDVR / 36LDVR / 39LDVR / 43LDVR Certified To Framing and FinishingFinal Finishing Gas SpecificationsAlternate Switch Location Gas Line InstallationRemote ON/OFF Switch InstallationEB-1 Electrical Box Electronic Gas Control ValveGeneral Venting Location of Vent TerminationCanadian Installations1 US Installations2 General Venting Information Termination LocationGeneral Information Assembling Vent Pipes Canadian InstallationsUSA Installations Flex Vent PipesRear Wall Venting Applications How to Use the Vent GraphTwist Lock Pipes Example aRear Wall Installation Twist Lock Pipe StepVertical Sidewall Applications Rear Wall Vent Installations Flex Vent PipeStep Maximum number of 90 elbows is three Vertical Sidewall Installation Zero clearance sleeve is only required for combustible wallsBelow Grade Installations Measure horizontal length including 2 overlapVertical Through-the-Roof Applications This Gas Fireplace has been approved forVertical Through-the-Roof Installation Typical vertical roof applicationsMin 610 mm Venting Components Operating Instructions Glass CleaningWindow Frame Assembly Removal Glass InformationLog Installation Installation of Logs, Lava Rock & Ember MaterialLog Identification Chart Rial on the burner housing assembly Do not place any of the lava rock mateOn the burner housing assembly Flame CharacteristicsFlame & Temperature Adjustment Do not place any of the lava rock material33LDVR What to do if YOU Smell GAS Lighting and Operating InstructionsTo Turn Off Gas To Heater Valve in the on position Lighting InstructionsTurning Off the Gas to the Appliance YES Troubleshooting Honeywell Millivolt ValveStart Check Troubleshooting the Gas Control System Normal Operation Abnormal OperationSIT 820 Nova Gas Control Valve Fig Fuel Conversion InstructionsPSE Pilot SIT top Convertible PilotBurner and Burner Compartment MaintenanceCleaning the Standing Pilot Control System Brass Trim33/36/39/43LDVR Ldvr DescriptionGADT3I0 GADT3J0 GADT3K0 GADT3N0 Fuel Conversion KitsFan Kits Optional Accessories AvailableFK24 Fan Assembly Ceramic Refractory Kits Wiring InstructionsRemote Controls Appliance Model Kit NameScreen Door Kit Optional Trim KitsLouvre Accent Trim Filigree Louvre KitLimited Lifetime Warranty Product Covered by this WarrantyEfficiency Ratings AFUE%

36LDVR, 33LDVR, 39LDVR, 43LDVR specifications

Vermont Castings has long been synonymous with quality craftsmanship and innovation in the field of heating appliances, particularly in the category of wood and gas stoves. Among their remarkable offerings, the 33LDVR, 39LDVR, 43LDVR, and 36LDVR models stand out, each with unique features that cater to a variety of user needs.

The 33LDVR model features a classic design that complements any space while providing efficient heating. With a maximum output of 15,000 BTUs, it is perfect for smaller rooms. One of its main characteristics is the built-in catalytic combustor, which enhances fuel efficiency and reduces emissions. This model also includes a convenient glass door that allows for a beautiful view of the flames, creating a warm ambiance.

Moving up in size, the 36LDVR offers an increased heating capability of up to 25,000 BTUs. This model retains the same elegance and durability as the 33LDVR, constructed from high-quality cast iron. The 36LDVR is equipped with Vermont Castings’ signature dual combustion system, which maximizes fuel efficiency and minimizes smoke. Additionally, the oversized door enhances visibility while maintaining a robust heat output.

The 39LDVR boasts a larger firebox, providing increased heat capacity and longer burn times. It can accommodate logs up to 18 inches long, making it ideal for those who appreciate long-lasting fires. This model also features a patented top-loading capability, which simplifies the refueling process without interrupting heat output. The advanced air control system allows users to fine-tune the burn rate, enhancing efficiency and managing heat distribution effectively.

Finally, the 43LDVR is the powerhouse of the lineup, with an impressive heating capacity of up to 40,000 BTUs. This model is designed for larger spaces, providing superior heat retention and distribution. It features Vermont Castings' innovative refractory lining, which improves heat retention and provides a longer-burning effect. The 43LDVR also includes a state-of-the-art fan system that promotes consistent warmth throughout the room, ensuring comfort even in the coldest weather conditions.

All four models incorporate Vermont Castings' commitment to environmentally responsible heating, with advanced technology that reduces emissions while maximizing efficiency. The aesthetic design, combined with practical features, makes these units a popular choice for homeowners looking to enhance their living spaces with reliable heating solutions. Whether for ambiance or effective heating, the 33LDVR, 36LDVR, 39LDVR, and 43LDVR models truly exemplify the quality and craftsmanship that Vermont Castings is known for.
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