Hearth and Home Technologies RBV4236IT, RBV4842IH, RBV4236IH Negative Pressure, Asphyxiation Risk

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B. Negative Pressure

WARNING

Asphyxiation Risk

•Negative pressure can cause spillage of combustion fumes and soot.

•Fire needs to draft properly for safe operation.

Draft is the pressure difference needed to vent fireplaces successfully. Considerations for successful draft include:

•Preventing negative pressure.

•Location of fireplace and chimney.

Negative Pressure

Negative pressure results from the imbalance of air avail- able for the fireplace to operate properly. Causes for this imbalance include:

•Exhaust fans (kitchen, bath, etc.).

•Range hoods.

•Combustion air requirements for furnaces, water heaters and other combustion appliances.

•Clothes dryers.

•Location of return-air vents to furnace or air conditioning.

•Imbalances of the HVAC air handling system.

•Upper level air leaks (recessed lighting, attic hatch opening, duct leaks).

To minimize the effects of negative air pressure, the follow- ing must be considered:

•Install the outside air kit. Install the intake on the side of the house towards prevailing winds during the heating season.

•Ensure adequate outdoor air is supplied for combustion appliances and exhaust equipment.

•Ensure furnace and air conditioning return vents are not located in the immediate vicinity of the fireplace.

•Avoid installing the fireplace near doors, walkways or small isolated spaces.

•Recessed lighting should be a “sealed can” design; attic hatches weather stripped or sealed; attic mounted duct work and air handler joints and seams taped or sealed.

•Basement installations should be avoided due to stack effect. Stack effect creates negative pressure in lower levels. Hearth & Home Technologies recommends the use of direct vent fireplaces in basements.

Location of the fireplace and chimney will affect performance. As shown in Figure 2.1 the chimney should:

•Be installed through the warm airspace enclosed by the building envelope. This helps to produce more draft, especially during lighting and die-down of the fire.

•Penetrate the highest part of the roof. This minimizes the effects of wind turbulence.

•Be located away from trees, adjacent structures, uneven roof lines and other obstructions.

Offsets can restrict draft so their use should be minimized. Consider the fireplace location relative to floor and ceiling and attic joists.

 

 

Recommended

Recommended

 

 

Location

 

 

 

Location

 

Location

Marginal

 

 

Location

 

 

Not

 

 

 

 

 

Recommended

 

 

 

 

Location

 

 

 

Not

 

 

 

Recommended

 

Windward

 

 

 

 

 

Leeward

 

 

Multi-level Roofs

 

 

Figure 2.1 Recommended Chimney Locations

 

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Heatilator • RBV4236/RBV4842 • 4048-210 Rev K • 02/07

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Contents RBV4236IH RBV4236IT RBV4842IH RBV4842IT What to do if you smell gasCongratulations Listing Label Information/LocationTable of Contents Listing and Code Approvals Design and Installation Considerations Getting StartedNegative Pressure Asphyxiation RiskTools and Supplies Needed Inspect the Appliance and ComponentsAny such action may cause a fire hazard Fire Risk Framing and ClearancesSelect Appliance Location Model #Construct the Appliance Chase Clearances Fire Risk Odor RiskRough Opening Model # Width Height Depth Mantel Projections Max Mantel Leg or Perpendicular WallFire Risk Explosion Risk Termination LocationsVent Termination Minimum Clearances Termination Caps Staggered HeightVent Information and Diagrams Vent GuidelinesVent System Configuration Elbow Distance is 50% of vertical Vent height Wall Penetration Framing Vent Clearances and FramingPipe Clearances to Combustibles Vertical Penetration FramingInstalling Outside Air Kit Appliance PreparationRisk of Smoke Spillage Gas and Electrical ConnectionsSecuring and Leveling Appliance Fire RiskAssemble Vent Sections Installing Vent PipeAttach Vent to Firebox Assembly Securing Vent SectionsGas Pressure Gas InformationFuel Conversion Gas Connection Gas Leak RiskCheck for GAS Leaks Electrical Information Recommendation for WireConnecting to the Appliance Shock Risk Explosion RiskIntellifire Ignition System Wiring Shock RiskJunction Box Installation Finishing Facing MaterialAccessories Appliance SetupClean the Appliance Log AssemblyLava Rock, Vermiculite, Rockwool Placement Placing the Lava Rock and VermiculiteLog Removal/Replacement Reveal Log SetGlass Doors HoodFire Risk Combustion Fumes Risk Air Shutter Setting 16 Remove Screws Attaching Front Burner SupportOperating Instructions Before Operating This ApplianceFire Risk Burn Risk High Limit Safety Switch Check Appliance DraftFor Your Safety Read Before Lighting Lighting the ApplianceIssue Solutions Frequently Asked QuestionsFire Risk High Temperatures After the Appliance is LitTroubleshooting Symptom Possible Causes Corrective ActionsIntellifire Ignition System Symptom Possible Causes Corrective Actions Maintaining and Servicing the Appliance Maintenance and Service Tasks Inspect Maintenance TasksAppliance Dimension Diagram Reference MaterialsModel This page intentionally left blank Service Parts RBV4236 & RBV4842 Service Parts ListRBV4236 & RBV4842 Description of PartService Parts RBV4236 & RBV4842 DCKN-RBV 1112 RBV4236 & RBV4842 Optional Components UD4 Uninsulated DuctYear Limited Warranty Limited Lifetime WarrantyLimited Lifetime Warranty How to Obtain ServiceDo Discardnot

RBV4236IT, RBV4842IT, RBV4842IH, RBV4236IH specifications

Hearth and Home Technologies has consistently combined aesthetic elegance with advanced technology in their range of contemporary fireplaces. Among their notable products are the RBV4236IH, RBV4842IH, RBV4842IT, and RBV4236IT models, each designed to enhance the ambiance of any living space while providing optimal heating solutions.

The RBV4236IH is a 36-inch gas fireplace that exemplifies innovative design. This model is available in both direct vent and vent-free options, allowing users flexibility based on their installation needs. Its clean-face design provides a wide, unobstructed view of the flames, making it a captivating focal point in any room. Moreover, it features a modulating flame system that delivers consistent warmth while allowing users to customize the flame size for varying mood settings.

Moving to the RBV4842IH, this 42-inch model takes efficiency to new heights. It boasts an impressive heating capacity, suitable for larger spaces, and includes advanced flame technology that ensures realistic and visually striking flames. The RBV4842IH is equipped with adjustable media options, including glass and logs, providing versatility in styling to suit individual preferences.

The RBV4842IT offers similar dimensions and features to the RBV4842IH, but it focuses on ease of installation and maintenance. With an innovative installation kit and design, homeowners can set up this fireplace with minimal hassle. It also incorporates a state-of-the-art ignition system, allowing for reliable starts every time, even during colder months.

Lastly, the RBV4236IT, also a 36-inch option, is tailored for versatile installations, including both residential and commercial spaces. It integrates high-efficiency heating technology that maximizes warmth while minimally impacting energy costs. Additionally, its user-friendly remote control provides ease in operation, making it simple to adjust settings without leaving the comfort of your seat.

In summary, Hearth and Home Technologies' RBV series represents a perfect blend of style, efficiency, and innovation. With thoughtfully designed features, including customizable flame settings, adjustable media, and smart ignition systems, these models cater to a wide audience, ensuring that both aesthetics and heating needs are met with excellence. Whether you're in search of a contemporary centerpiece for your home or an efficient heating solution, the RBV4236IH, RBV4842IH, RBV4842IT, and RBV4236IT models stand out as premier choices.
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