Desa M36E, M42E, VM36E, VM42E, H) AND VM42E(B Venting Installation, Typical B-Vent Configuration

Page 9

VENTING INSTALLATION

VENTING INSTALLATION

9

A B-type venting system must be connected to the appliance for venting to the outside of the building.

The following section is provided as a guide to a standard B-type vent installation.

Standing codes requirements concerning B-type vent installations may vary within your state, province or local codes jurisdiction. Therefore, it is recommended that you check with your local building codes for specific requirements or in absence of local codes, follow Section 7.0 of the current National Fuel Gas Code NFPA No. 54/ANSI Z223.1 and in Canada with CAN/CGA B149 for Category I systems using double wall B-1 vent pipe.

This gas appliance must be vented to the outdoors only and may not be terminated into an attic space or into a chimney flue servicing a solid-fuel burning appliance.

This appliance may be vented through a manufactured chimney system or a masonry chimney using a B-vent adapter or a chimney liner system if all are listed, inspected and approved by local codes and/or building authorities.

The examples shown in Figure 10 are typical of most B-vent installations and codes practices.

Example 1: Shows the minimum allowable system height and lateral offset for a 60° degree or greater inclination. Code specifies that offsets at 60° degrees or greater are considered horizontal and must follow the 75% percent rule for lateral to total vertical system height. Codes also allows only one offset in the total system when at 60° degrees or greater. The total vertical height in this example represents the minimum height of 8 feet and therefore the allowable lateral is 6 feet when the 75% percent rule applies. If the lateral length must exceed 75% then the system must be sized in accor- dance with the Category I venting tables.

Example 2: Shows a multiple offset each at 45° degrees of inclination. Multiple offsets are permitted if they do not exceed 45° degrees of inclination. The total lengths of the two offsets are not required to meet the 75% percent allowable rule.

Example 3: Shows a single offset at 45° degrees of inclination and therefore the lateral length at 10 feet of offset does not have to meet the 75% percent rule.

In each case the offsets must be supported and firestops must be positioned wherever the vent must pass through a sub-floor, ceiling joist or an attic overhang. The vent pipe must terminate vertically into a listed type vent cap and extend a sufficient height through an approved roof flashing, roof jack or a roof thimble. At all points the listed clearances must be maintained.

 

 

Listed

 

 

 

 

 

 

 

Vent Cap

 

 

Listed

Listed

 

 

 

 

 

Vent Cap

 

 

 

 

 

Vent Cap

 

 

 

 

 

 

 

Maintain

 

Maintain

 

 

 

 

 

 

Listed

 

 

 

Maintain

 

Listed

 

 

 

 

 

 

Clearance

 

Maintain

 

Listed

 

Clearance

 

 

 

 

 

Support Each

 

Listed

 

Clearance

 

 

 

 

 

 

 

 

Lateral At

 

Clearance

 

 

 

 

 

Least Every

45°

 

 

 

 

 

60°

Six (6) Feet

12' Min.

 

 

 

 

 

 

 

 

 

8'

 

 

 

45°

10'

 

6'

 

 

 

12' Min.

Position

 

45°

Position

 

12' Min.

 

Position

 

 

Firestop

 

Firestop

 

Firestop

 

 

 

 

 

 

 

 

 

 

Maintain

 

Maintain

 

 

Maintain

 

 

Listed

 

Listed

 

 

Listed

 

 

Clearance

 

Clearance

 

 

Clearance

EXAMPLE 1

EXAMPLE 2

EXAMPLE 3

Figure 10 - Typical B-Vent Configuration

For more information, visit www.desatech.com

108796-01D

Image 9
Contents Vent Decorative GAS Fireplace For Your SafetyElectronic Ignition Natural GAS What to do if YOU Smell GASSafety Information Table of ContentsUnpacking Introduction Before YOU BeginM36EB,H/VM36EB,H M42EB,H/VM42EB,H Model Product SpecificationsPRE-INSTALLATION Preparation Selecting LocationClearances M36EB,H M42EB,H Mantel Clearances and Wall DetailsVM36EB,H VM42EB,H M36EB,H M42EB,H VM36EB,H VM42EB,HFraming Installing Transition Pipe and Starter CollarTypical B-Vent Configuration Venting InstallationMin Roof Pitch Checking for Proper VentingWall Switch Installation InstallationOptional Remote Control GAS Line HOOK-UPOvertighten Ember and PAN Material PlacementInstalling Logs 1 LOG Placement for M36E/VM36E ModelsInstalling Logs 1A, 1B LOG Placement for M42E/VM42E ModelsInstalling Optional Glass Door Accessory Combustion AIR KIT Model AK4 OptionalAppliance Enclosure Door Opening Vent DamperOperating Fireplace For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To ApplianceInspecting Burners Cleaning MaintenanceTechnical Service Service HintsWiring Diagram Replacement PartsObserved Problem Possible Cause Remedy TroubleshootingGas leak. See Warning statement at TopVM42EB,H Models Illustrated Parts BreakdownVM36EB/VM42EB Parts ListLogset for M36EB,H and VM36EB,H Models Logs for M36EB,H,M42EB,H, VM36EB,H and VM42EB,H ModelsAccessories Warranty Information

M36E, M42E, VM36E, VM42E, H) AND VM42E(B specifications

Desa M36E, M42E, VM36E, VM42E(H), and VM42E(B) are advanced heating solutions engineered for enhanced performance and versatility in both residential and commercial settings. These models stand out for their efficient heating capabilities and innovative designs, which cater to a variety of heating needs.

The Desa M36E and M42E models offer a robust heating output, making them ideal for larger spaces. The M36E boasts a compact structure that accommodates small to medium areas, while the M42E provides greater output suitable for bigger rooms. Both units are equipped with high-efficiency burners that ensure optimal fuel utilization, leading to significant cost savings over time.

The VM36E and VM42E(H) models take efficiency to the next level. Their advanced combustion technology maximizes heat production while minimizing emissions, aligning with modern environmental standards. The VM36E features a versatile design, allowing it to seamlessly integrate into various décor styles, while providing a steady flow of warm air. Meanwhile, the VM42E(H) is enhanced with a hybrid heating system, enabling users to switch between energy sources, which adds to its adaptability in differing climates or situations.

The VM42E(B) model introduces an innovative breakthrough in heating technology by incorporating smart control features. Users can effortlessly regulate their heating preferences through a smartphone application, allowing for remote management and programming based on individual schedules. This smart technology not only enhances user convenience but also supports energy conservation by promoting efficient usage patterns.

All models come equipped with safety features such as automatic shut-off mechanisms, ensuring peace of mind during operation. The units are designed with durable materials, capable of withstanding prolonged use while maintaining aesthetic appeal.

In summary, Desa's M36E, M42E, VM36E, VM42E(H), and VM42E(B) represent the forefront of modern heating solutions, combining high efficiency, innovative technologies, and user-friendly features. Their diverse applications, coupled with intelligent design, ensure they meet the evolving demands of today's consumers while providing warmth and comfort in any setting.