Hearth and Home Technologies RHW-485H Grate, Wood Fuel, Firewood, Moisture, Seasoning

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G. Grate

The factory installed integral grate must be used to hold the logs from falling out of an open fireplace and to allow air to pass between the burning logs. It is important to keep the fire off the hearth and to allow the ashes to collect beneath the fire, thereby forming a layer of additional heat protection.

WARNING

Fire Risk

•Use only factory installed integral grate. May cause overfire.

H.Wood Fuel

Firewood

Your fireplace performance depends on the quality of the firewood you use. All seasoned wood, regardless of spe- cies, contains about 8,000 BTU’s per pound, and hard- woods have a greater density than soft woods. A piece of hardwood will contain about 60% more BTU’s than an equal size piece of soft wood. Firewood is commonly sold by the cord (128 cu. ft.). A cord of seasoned oak (hardwood) would contain about 60% more potential en- ergy than a cord of seasoned pine (soft wood).

Examples of soft wood trees are Douglas fir, pine, spruce, and cedar, poplar, aspen and alder. Soft woods require less time to dry, burn faster and are easier to ignite than hardwoods.

Examples of hardwood trees are oak, maple, apple, and birch. Hardwoods require more time to season, burn slower and are usually harder to ignite than soft woods.

The best wood fuel is a combination of soft wood and hardwood. Start the fire with soft wood; the fire will give off quick heat to bring the fireplace up to operating tem- perature, and then the hardwood can be added for slow, even heat and longer burn time.

Moisture

Regardless of which species of wood you burn, the single most important factor that effects the way your fireplace operates is the amount of moisture in the wood. The ma- jority of the problems fireplace owners experience are caused by trying to burn wet, unseasoned wood.

Freshly cut wood can be as much water as it is wood, having a moisture content of around 50%. Imagine a wooden bucket that weighs about eight pounds. Fill it with a gallon of water, put it in the fireplace and try to burn it. This sounds ridiculous but that is exactly what you are doing if you burn unseasoned wood.

Seasoning

Seasoned firewood is nothing more than wood that is cut to size, split and air dried to a moisture content of around 20%. The time it takes to season wood varies from around nine months for soft woods to as long as eighteen months for hardwoods. The key to seasoning wood is to be sure it has been split, exposing the wet interior and increasing the surface area of each piece. A tree that was cut down a year ago and not split is likely to have almost as high a moisture content now as it did when it was cut.

The following guideline will ensure properly seasoned wood:

•Stack the wood to allow air to circulate freely around and through the woodpile.

•Elevate the woodpile off the ground to allow air circulation underneath.

•The smaller the pieces, the faster the drying process. Any piece over 6 in. (152 mm) in diameter should be split.

•Cover the top of the woodpile for protection from rain and snow. Avoid covering the sides and ends completely. Doing so may trap moisture from the ground and impede air circulation.

The problems with burning wet, unseasoned wood are twofold: First, you will receive less heat output from wet wood because it requires energy in the form of heat to evaporate the water trapped inside. This is wasted ener- gy that should be used for heating your home. Secondly, this moisture evaporates in the form of steam which has a cooling effect in your fireplace and chimney system. When combined with tar and other organic vapors from burning wood it will form creosote which condenses in the relatively cool fireplace and chimney.

WARNING

Fire Risk

•Do NOT burn wet or green wood.

•Store wood in dry location.

•Stack wood so both ends are exposed to air.

Wet, unseasoned wood can cause accumulation of creosote.

WARNING

Fire Risk

Do NOT store wood:

•Closer than required clearances to combustibles to fireplace.

•Within space required for loading or ash removal.

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

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Contents Fire Risk Models RHW-485, RHW-485H Woodburning FireplaceNumber Listing Label Information/LocationGrate Table of Contents Not intended for use as a primary heat source Listing and Code ApprovalsAppliance Certification Getting Started Design and Installation ConsiderationsNegative Pressure Asphyxiation RiskMarginal Location Typical Fireplace System Typical Fireplace SystemFire Risk Explosion Risk Tools and Supplies NeededInspect Fireplace and Components Selecting Fireplace Location Framing and ClearancesClearances to Combustible Materials ClearancesFrame the Fireplace Sidewalls/SurroundsChimney Requirements Construct the ChaseInstall the Outside Air Kit Installation of FireplaceSharp Edges Asphyxiation Risk Risk of Smoke SpillageFt min. from top of uppermost chimney section to air inlet Position the Fireplace Secure the FireplacePlace the Protective Metal Hearth Strips Level the FireplaceChimney Assembly Height of Chimney Components Degree SL306 SL312 SL318 SL324 SL336 SL348 Using Offsets/ReturnsAssemble the Chimney Sections Install the Ceiling FirestopsSecure the Chimney Install the Attic Insulation ShieldDouble-check the Chimney Assembly Chimney Termination Complete the EnclosureChase Top Install the Termination CapInstall the Chimney Air Kit required in Canada Installing an ST375 Square Termination Cap Gas Code, Ansi Z223.1 AccessoriesGas Log/Lighter Provisions Hearth Extension FinishingMantel Finishing MaterialGlass Doors Combustible MaterialGeneral Information Operating InstructionsClear Space Near the Fireplace Outside AirFlue Damper FirescreenWood Fuel GrateFirewood MoistureStarting a Fire Understanding Vent Problems TroubleshootingDiagnostic Questions Diagnostics and Problem SolvingSolutions Can’t get a good fire going. What am I doing wrong?fireplace burns the wood too fast. What can I do? Chimney Inspection/Cleaning Maintenance and Servicing the FireplaceDisposal of Ashes Firebox RefractoryWhen cleaning glass door Maintenance Task ListClean Chimney FireReference Materials Fireplace DimensionsCatalog # Description Fireplace ComponentsCatalog # Chimney Components14-1/2 1829 mm 10-7/8 276 mm 406 mm 508 mm Minimum Base Dimensions 26.5 X 28 with 34 X 34 with Minimum Base Dimensions 28 X 28 with 32 X 32 with 23 XTR442 TR442 / 444 TV 20 xThis page intentionally left blank RHW-485 Service PartsHerringbone Brick Refractory option available week 03/04 Description of Part RHW-485 RHW-485H QtyThis page intentionally left blank Limited Warranty Warranty For Heat & GLO FireplacesDo Discardnot Contact Information

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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