E. Install the Attic Insulation Shield

An insulation shield must be installed when there is a pos- sibility of insulation coming into contact with the factory built chimney system.

•Bend the tabs at the top of the attic insulation shield inward. This will help keep the chimney section centered in the shield.

•Position the shield over the vertical chimney section where it penetrates a ceiling firestop.

•Slide the shield down until it rests on the ceiling firestop. The ceiling firestop will support the insulation shield. See Figures 5.6 and 5.7.

WARNING

Fire Risk

•DO NOT pack insulation or other combustibles: between ceiling firestops; between chimney and attic insulation shield.

•ALWAYS maintain specified clearances around chimney and ceiling firestop systems.

•Install ceiling firestops as specified.

Failure to keep insulation or other material away from chimney pipe may cause fire.

F. Double-check the Chimney Assembly

Continue assembling the chimney sections up through the ceiling firestops as needed. While doing so, be aware of the height and unsupported chimney length limitations given un- der Section 5.A. Chimney Requirements.

Check each section by pulling up slightly from the top to en- sure proper engagement before installing the succeeding sections. If they have been connected correctly, they will not disengage when tested.

G. Secure the Chimney

 

Tabs

 

14-1/2 in. (368 mm)

24 in.

Attic

Insulation

Insulation (610 mm)

 

Shield

 

Ceiling Firestop

10-1/2 in.

 

(267 mm)

 

Chimney

 

Figure 5.6 Install Attic Insulation Shield Above the Ceiling

14-1/2 in. (368 mm)

 

 

 

 

 

 

 

 

 

 

Tabs

 

 

 

 

 

 

 

 

 

Attic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Insulation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Insulation

24

 

in.

 

 

 

 

 

 

 

Shield

 

 

 

 

 

 

 

 

 

 

 

 

 

(610 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10-1/2 in.

(267 mm)

Chimney

Ceiling Firestop

Figure 5.7 Install Attic Insulation Shield Below the Ceiling

When offsets and returns are joined to straight pipe sections, they must be locked into position with the screws provided* (outer only), using the predrilled holes. To prevent gravity from pulling the chimney sections apart, the returns and the chimney stabilizers have hanger straps for securing these parts to joists or rafters. See Figure 5.8.

* or equivalent #6 or #8 sheet metal screw no longer than

Straps

Ceiling Firestop

Joint

Band

3/4 in. (19 mm).

WARNING

Fire Risk

•Secure offsets with screws (not to exceed 3/4 in./19 mm in length).

•Secure returns with strapping.

•Straight chimney sections may be secured with screws (not to exceed 3/4 in./19 mm in length) at the joints.

Keep chimney sections from separating or twisting.

Optional(Optional)

Additional

Support

Figure 5.8 Secure the Chimney

20

Heat & Glo • RHW-485 • 33221 Rev O • 08/06

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Hearth and Home Technologies RHW-485H owner manual Install the Attic Insulation Shield, Double-check the Chimney Assembly
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RHW-485, RHW-485H specifications

Hearth and Home Technologies (HHT) is a leader in the manufacture of innovative and high-quality hearth products, and their RHW-485H and RHW-485 models are no exceptions. These wood-burning heaters are designed to provide efficient and effective heating solutions for residential spaces while offering an elegant aesthetic that complements various home decors.

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Both models come equipped with a robust refractory system that enhances heat retention and distribution. This technology ensures that heat is released evenly and efficiently, providing consistent warmth without the need for constant refueling. Additionally, they feature adjustable air controls that allow users to manage burn rates and heat output according to their preferences.

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In conclusion, Hearth and Home Technologies’ RHW-485H and RHW-485 models are premium wood-burning heaters that combine efficiency, elegance, and environmental responsibility. They offer a perfect blend of modern technology and classic design, making them an excellent choice for discerning homeowners looking to enhance their living space with warmth and style.
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