A. Chimney Requirements

Vertical distances are measured from the base of the fire- place as shown in Figure 5.2.

Minimum overall straight height

16.5 ft

(5.03 m)

Minimum height with offset/return

16.5 ft

(5.03 m)

• Maximum height

90 ft

(27.43 m)

• Maximum chimney length between an offset

20 ft

(6.1 m)

 

and return

 

 

• Maximum distance between chimney

35 ft

(10.67 m)

 

stabilizers

 

 

Double offset/return minimum height

20 ft

(6.1 m)

• Maximum unsupported chimney length

6 ft

(1.83 m)

 

between the offset and return

 

 

• Maximum unsupported chimney height above

35 ft

(10.67 m)

 

the fireplace

 

 

• Maximum unsupported chimney above roof

6 ft

(1.83 m)

To determine the chimney components needed to complete your particular installation, follow the steps below:

Determine the total vertical height of the fireplace installation. This dimension is measured from the base of the fireplace assembly to the point where the smoke exits the termination cap.

Subtract the effective height of the fireplace assembly from the overall height of the fireplace installation (measured from the base of the fireplace to the bottom of the termination cap).

Refer to Table 5.1 to determine what components must be selected to complete the fireplace installation.

Determine the number of ceiling firestops, stabilizers, roof flashing, etc. required to complete the fireplace installation.

Note: A maximum of two pairs of offsets and returns may be used.

WARNING

Fire Risk

Must maintain 2 in. (51 mm) air clearance to insulation and other combustible materials.

Table 5.1

HEIGHT OF CHIMNEY COMPONENTS

in.

mm

Chimney Stabilizer

 

 

 

SL3

4-3/4

121

 

 

 

 

Ceiling Firestops

 

 

 

FS338

0

0

 

FS339

0

0

 

 

 

 

 

FS340

0

0

Offsets/Returns

 

 

6 ft (1.8 m) max. unsupported run

20 ft (6.10 m) max. pipe between an offset & return

Ceiling firestop

41-1/4 in.

(1048 mm)

Effective

Height

6 ft (1.83 m) max. unsupported chimney above roof

35 ft (10.7 m) max. straight unsupported chimney height

16.5ft (5.03 m) min. height/single offset-return 20 ft. (6.10 m) min. height/double offset-return

90 ft (27.4 m) max. height

 

SL315

13-3/8

340

 

SL330

15-1/2

394

Roof Flashing

 

 

 

RF370

0

0

 

RF371

0

0

 

 

 

 

Chimney Sections*

 

 

 

SL306

4-3/4

121

 

SL312

10-3/4

273

 

 

 

 

 

SL318

16-3/4

425

 

SL324

22-3/4

578

 

SL336

34-3/4

883

 

 

 

 

 

SL348

46-3/4

1187

* Dimensions reflect effective height.

 

 

Figure 5.2 Chimney Requirements

CAUTION

Do NOT connect this fireplace to a chimney flue servicing another appliance.

Do NOT connect to any air distribution duct or system.

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

17

Page 17
Image 17
Hearth and Home Technologies RHW-485H owner manual Height of Chimney Components

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.

One of the main features of the RHW-485H and RHW-485 is their impressive heating capacity. Both models are designed to heat areas up to 2,000 square feet efficiently, making them ideal for large living spaces or open-concept homes. This significant heating capability is made possible by advanced combustion technology that allows for a longer burn time, ensuring extended warmth throughout the night.

Another defining characteristic of these units is their clean-burning technology. HHT has incorporated a unique air wash system that enhances combustion efficiency and minimizes emissions. This ensures that homeowners can enjoy the beauty and comfort of a wood fire while adhering to environmental standards. Furthermore, these models have received certification from the EPA for meeting stringent guidelines, making them an excellent choice for those who are environmentally conscious.

In terms of design, the RHW-485H features an attractive cast iron door with a large viewing window. This allows for an unobstructed view of the mesmerizing flames and adds a touch of sophistication to any room. The RHW-485, while similar in heating efficiency, offers slightly different aesthetic options, giving homeowners the ability to choose a model that aligns with their personal style.

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.

Another important aspect is the ease of installation and maintenance. The RHW-485H and RHW-485 have been designed with user-friendly features, including accessible clean-out ports that simplify ash removal. This reduces the hassle of routine care, allowing homeowners to enjoy their fireplace without extensive upkeep.

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.