Hearth and Home Technologies RHW-485H owner manual Using Offsets/Returns

Page 18

B. Using Offsets/Returns

To bypass any overhead obstructions, the chimney may be offset using a 15-deg (SL315) or 30-deg (SL330) offset/re- turn.

An offset and return may be attached together or a chimney section(s) may be used between an offset and return.

Perform the following steps to determine the correct chim- ney component combination for your particular installation:

WARNING

Fire Risk

•Draft will be restricted if offset/returns greater than 30° are used.

•Measure how far the chimney needs to be shifted to enable it to avoid the overhead obstacle. See Figure 5.3. Use dimension “A” to determine chimney section required to achieve the needed shift.

•After determining the offset dimension, refer to Table 5.2 and find the “A” dimension closest to but not less than the distance of shift needed for your installation.

•The “B” dimension that coincides with the “A” dimension represents the required vertical clearance that is needed to complete the offset and return.

•Read across the chart and find the number of chimney sections required and the model number of those particular chimney parts.

•Whenever the chimney penetrates a floor/ceiling, a ceiling firestop must be installed.

•The effective height of the fireplace assembly is measured from the base of the fireplace to the top of the starter collar. See Dimensions in Section 12.

Table 5.2

 

15-degree

 

 

30-degree

 

 

 

 

 

 

 

A

 

B

 

A

 

B

 

 

 

 

 

 

 

in.

mm

in.

mm

in.

mm

in.

mm

SL306

SL312

SL318

SL324

SL336

SL348

1-5/8

41

13-3/8

340

3-5/8

92

15-1/2

394

-

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-7/8

73

17-3/4

451

5-1/2

140

18-5/8

473

1

-

-

-

-

-

4-1/8

102

22-3/8

568

7-1/4

184

21-3/4

552

2

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-1/2

114

23-5/8

600

8-1/2

216

23-3/4

603

-

1

-

-

-

-

5-3/4

146

28-1/4

718

10-1/4

260

27

686

1

1

-

-

-

-

6

152

29-3/8

746

11-1/2

292

29

737

-

-

1

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-1/4

184

34

864

13-1/4

337

32-1/8

816

-

2

-

-

-

-

7-3/4

197

36-1/8

918

14-1/2

368

34-1/8

867

-

-

-

1

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-3/4

222

39-3/4

1010

16-1/4

413

37-3/8

949

1

-

-

1

-

-

10-3/8

264

45-5/8

1159

19-1/4

489

42-1/2

1080

-

-

2

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10-5/8

270

46-3/4

1187

20-1/2

521

44-5/8

1133

-

-

-

-

1

-

11-7/8

302

51-3/8

1305

22-1/4

565

47-3/4

1213

1

-

-

-

1

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13-1/2

243

57-1/4

1454

25-1/4

641

52-7/8

1343

-

-

-

2

-

-

13-3/4

349

58-3/8

1483

26-1/2

673

55

1397

-

-

-

-

-

1

15

381

63

1600

28-1/4

718

58-1/8

1476

1

-

-

-

-

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16-1/2

419

68-3/4

1746

31-1/4

794

63-1/4

1607

-

1

-

-

-

1

18

457

74-5/8

1895

34-1/4

870

68-1/2

1740

-

-

1

-

-

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19-5/8

498

80-3/8

2042

37-1/4

946

73-3/4

1873

-

-

-

1

-

1

20-5/8

524

84-1/8

2137

39-1/8

994

76-7/8

1953

1

-

-

1

-

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22-3/4

578

91-7/8

2334

43-1/4

1099

84-1/8

2137

-

-

-

-

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

610

96-1/2

2451

45-1/8

1146

87-1/4

2216

1

-

-

-

1

1

25-7/8

657

103-1/2

2629

49-1/4

1251

94-1/2

2400

-

-

-

-

-

2

Proper assembly of air-cooled chimney parts result in an overlap at chimney joints of 1-1/4 in. (32 mm). Effective length is built into this chart.

A

B

1-1/4 in. (32 mm)

OVERLAP

Figure 5.3 Chimney Offset/ Return

¨Example: Your “A” dimen- sion from Figure 5.3 is 14 1/2 in. (368 mm). Using Table 5.2 the dimension closest to, but not less than 14 1/2 in. (368 mm) is 14 1/2 in. (368 mm) using a 30° offset/return. It is then determined from the table that you would need 34 1/8 in. (867 mm) (Dimension “B”) between the offset and return. The chimney component that best fits your application is one SL324.

18

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

Page 17 Page 19
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Page 17 Page 19
Contents Models RHW-485, RHW-485H Woodburning Fireplace Fire RiskListing Label Information/Location GrateNumber Table of Contents Listing and Code Approvals Appliance CertificationNot intended for use as a primary heat source Negative Pressure Design and Installation ConsiderationsGetting Started Asphyxiation RiskMarginal Location Typical Fireplace System Typical Fireplace SystemTools and Supplies Needed Inspect Fireplace and ComponentsFire Risk Explosion Risk Framing and Clearances Selecting Fireplace LocationClearances Clearances to Combustible MaterialsSidewalls/Surrounds Frame the FireplaceConstruct the Chase Chimney RequirementsSharp Edges Asphyxiation Risk Installation of FireplaceInstall the Outside Air Kit Risk of Smoke SpillageFt min. from top of uppermost chimney section to air inlet Place the Protective Metal Hearth Strips Secure the FireplacePosition the Fireplace Level the FireplaceChimney Assembly Height of Chimney Components Using Offsets/Returns Degree SL306 SL312 SL318 SL324 SL336 SL348Install the Ceiling Firestops Assemble the Chimney SectionsInstall the Attic Insulation Shield Double-check the Chimney AssemblySecure the Chimney Complete the Enclosure Chimney TerminationInstall the Termination Cap Install the Chimney Air Kit required in CanadaChase Top Installing an ST375 Square Termination Cap Accessories Gas Log/Lighter ProvisionsGas Code, Ansi Z223.1 Finishing Hearth ExtensionGlass Doors Finishing MaterialMantel Combustible MaterialOperating Instructions General InformationFlue Damper Outside AirClear Space Near the Fireplace FirescreenFirewood GrateWood Fuel MoistureStarting a Fire Troubleshooting Understanding Vent ProblemsSolutions Diagnostics and Problem SolvingDiagnostic Questions Can’t get a good fire going. What am I doing wrong?fireplace burns the wood too fast. What can I do? Disposal of Ashes Maintenance and Servicing the FireplaceChimney Inspection/Cleaning Firebox RefractoryClean Maintenance Task ListWhen cleaning glass door Chimney FireFireplace Dimensions Reference MaterialsFireplace Components Catalog # DescriptionChimney Components Catalog #14-1/2 1829 mm 10-7/8 276 mm 406 mm 508 mm TR442 TR442 / 444 TV Minimum Base Dimensions 28 X 28 with 32 X 32 with 23 XMinimum Base Dimensions 26.5 X 28 with 34 X 34 with 20 xThis page intentionally left blank Service Parts RHW-485Description of Part RHW-485 RHW-485H Qty Herringbone Brick Refractory option available week 03/04This page intentionally left blank Warranty For Heat & GLO Fireplaces Limited WarrantyContact Information Do Discardnot

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.
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