Lennox Hearth HCI-42 TEN Foot Rule Summary, Multiple Terminations, Special Offset Instructions

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Less Than 10'

3'

Min

Figure 34

Note: It is recommended that all exterior ex- posed metal fireplace components; such as terminations, flashings, storm collars and/or flue be painted with a premium quality, high temperature, rust preventative paint designed for metal. This is especially important when installations are made in abnormally adverse or corrosive environments; such as near lakes, oceans or in areas with consistently high hu- midity conditions. Consult the paint manufac- turers instructions for proper preparation and application.

TEN FOOT RULE SUMMARY

The minimum chimney height above the roof and/or to adjacent walls and buildings is speci- fied by all major building codes.

If the horizontal distance from the peak of the roof is less then 10', the top of the chimney must be at least 2' above the peak of the roof.

If the horizontal distance from the chimney edge to the peak of the roof is more than 10' a chimney height reference point is established on the roof surface 10' horizontally from the chimney edge. The top of the chimney must be at least 2' above this reference point. In all cases, the chimney cannot be less then 3' above the roof at the edge of the chimney.

The 2' in 10' rule is necessary in the interest of safety but does not ensure smoke-free opera- tion. Trees, buildings, adjoining roof lines, ad- verse wind conditions, etc., may require a taller chimney should the fireplace not draft properly (see Figure 34 ).

2' Min.

10'

3'

 

Min

MULTIPLE TERMINATIONS

If more than one termination is located in the same chase or within the same general proxim- ity, we suggest they should be separated in distance at least 24" horizontally from flue cen- ter to flue center and stacked or staggered vertically at least 18" apart, from the termina- tion of one smoke exit to the termination of another smoke exit (Figure 35 ).

CTD

18"

18"

CTDT CTDT

24"

24"

Figure 35

This suggestion is provided in the interest of better operation. If the terminations are located too close to each other, smoke may migrate from one flue into the other.

FTF8 CHIMNEY COMPONENT

CALCULATIONS

The minimum installed height of the com- pleted fireplace system is 15' 0". The maxi- mum height is 60' 0".

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

To determine the number of chimney sections and chimney components required, follow these steps:

1.Determine total vertical height of the fireplace installation. This dimension is the distance from the surface the fireplace sets on to the point where smoke exits from the termination.

2.Determine the number of chimney compo- nents required, except chimney sections. This would include firestop spacers, stabilizers, roof flashing, etc.

3.The effective heights of the components are:

The Fireplace

=

45-3/8"

FTF8-12

=

10-1/4"

FTF8-18

=

16-1/4"

FTF8-36

=

34-1/4"

FTF8-48

=

46-1/4"

FTF8-CTD Termination

=

4"

FTF8-CT1 Termination

=

12" to 18"

FTF8-CT2 Termination

=

15" to 23"

FTF8-CTDT Termination

=

12" to 18"

FTF8-CTT Termination

=

6" to 14"

FTF8-ATT Termination

=

8" to 14"

FTF8-S4 Stabilizer *

=

3"*

*Required for every 30' of vertical chimney and/or 10' of offset chimney.

4.Determine amount of chimney height re- quired by subtracting total combined height of all pre-selected components (fireplace and chimney components from total desired height.)

Reference Vertical Elevation Chart and deter- mine the number of chimney sections (quantity and length) required.

SPECIAL OFFSET INSTRUCTIONS

To clear any overhead obstructions, you may offset your chimney system using Security's 30° offset and return elbows. Use two elbows - an offset elbow to initiate the offset and a return elbow to terminate it. A 30° offset elbow, an- gling in any direction, may be the first compo- nent used off the top of the fireplace flue collar.

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Contents Omni Report No -F-52-2 Wood Burning Fireplaces P/N 850,047M REV. B 12/2008Table of Contents Clearances and Height Requirements Typical InstallationPrecautions IntroductionBefore You Start Assembly OutlineChimney Height Chase EnclosureClearances Assembly StepsPRE-INSTALLATION Notes Installing the FireplaceRight Side Fireplace SpecificationsFront Left SideFraming Specifications Chimney Duct Duct Collar Front Cover Plate a Plate B Installing the Chimney SystemFor Canadian Installations Proceed with Steps 5 through 8d Nail Or EquivalentFTF8-S4 Stabilizer Or CeilingFor Canada Only Open Attic SpaceUsing a FTF8-CT2 Chase Termination Using a FTF8-CTD Round TerminationUsing a FTF8-CTDT Chase Termination Using a FTF8-CT1 Chase TerminationSpecial Offset Instructions TEN Foot Rule SummaryMultiple Terminations FTF8 Chimney Component CalculationsNumber Of FTF8 FTF8 Vertical Elevation ChartOffset Calculations Chimney OnlyHeight Offset Elevation ChartOffset StabilizerOptional Equipment Considerations Installing OffsetsOffset Elbow Assembly Return Elbow AssemblyVent Free Appliances Combustion Air KitsGas Line Connection Mantels and Trim Glass DoorsCold Climate Insulation Fireplace FinishesInches = Hearth Extension DimensionsMethods of Determining Hearth Extension and Wall Shield TL = minimum thickness of listed materialRM = rM x TS = 0.05 x 3/4 = Finish to Your TasteSum of all R values is .70 + .10 + + .10 = Value = 1/k = r x thickness of material used188 lbs Installation ComponentsShipping Weight Not Provided 850,047M REV. a 12/2008Orange, CA

RDI-42-H, HCI-42-H, RDI-42, HCI-42 specifications

The Lennox Hearth series includes some of the most impressive gas fireplaces available, such as the HCI-42, RDI-42-H, HCI-42-H, and RDI-42. These models are designed to blend efficiency, style, and comfort, making them ideal for modern homes.

One of the standout features of these fireplaces is their versatile design. They come in various sizes to fit a range of spaces while offering customization options that allow homeowners to tailor their aesthetic, including various trim finishes and decorative options. The HCI-42 and RDI-42-H models are particularly noted for their seamless integration into both traditional and contemporary home decor.

The technology behind Lennox Hearth fireplaces ensures high performance and efficiency. Utilizing advanced burner technology, these models provide realistic flame patterns and a beautiful glowing ember bed, creating a captivating visual experience. The direct vent system allows for efficient heating while minimizing heat loss, making these fireplaces ideal for energy-conscious consumers. With a focus on environmentally friendly operation, these units produce fewer emissions compared to traditional wood-burning fireplaces.

User convenience is also a top priority with Lennox Hearth. Many models feature remote control functionality, allowing users to adjust heat and flame settings effortlessly. The easy-to-use thermostatic controls enable homeowners to maintain their desired comfort level without the hassle of manual adjustments. Additionally, the lightweight construction and simplified installation process make it easier for homeowners and contractors alike to set up these fireplaces.

Safety features are integral to Lennox Hearth products. These include sealed combustion systems that prevent outdoor air from entering the home and built-in safety shut-off systems to ensure peace of mind. The HCI-42 and its counterparts have been rigorously tested for safety and performance, adhering to strict industry standards.

In summary, the Lennox Hearth HCI-42, RDI-42-H, HCI-42-H, and RDI-42 bring together cutting-edge technology, beautiful design, and ease of use to offer homeowners a top-tier fireplace experience. With their efficient heating capabilities, customizable aesthetics, and emphasis on safety, these models stand out as exceptional choices for modern living spaces. Whether you are looking to enhance your home’s ambiance or increase energy efficiency, Lennox Hearth fireplaces are a smart investment for any homeowner.
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