B. Design and Installation Considerations

NOTICE: Check building codes prior to installation.

•Installation MUST comply with local, regional, state and national codes and regulations.

•Consult insurance carrier, local building inspector, fire officials or authorities having jurisdiction over restrictions, installation inspection and permits.

Before installing, determine the following:

•Where the fireplace is to be installed

•The vent system configuration to be used

•Gas supply piping

•Electrical wiring

•Framing and finishing details

•Whether optional accessories—devices such as a fan, wall switch or remote control—are desired

NOTICE: Junction box should be installed during initial setup to avoid major reconstruction.

C. Draft

Draft is the pressure difference needed to vent fireplaces successfully. When a fireplace is drafting successfully, all combustion byproducts are exiting the home through the chimney.

Considerations for successful draft include:

•Preventing negative pressure

•Location of fireplace and chimney

NOTICE: Hearth & Home Technologies assumes no responsibility for the improper performance of the fireplace system caused by:

•Inadequate draft due to environmental conditions

•Downdrafts

•Tight sealing construction of the structure

•Mechanical exhausting devices

•Improper location of the chimney

D. Negative Pressure

WARNING! Risk of Asphyxiation! Negative pressure can cause spillage of combustion fumes and soot. Fire must draft properly for safe operation.

Negative pressure results from the imbalance of air avail- able for the fireplace to operate properly. It can be stron- gest in lower levels of the house.

Causes include:

•Exhaust fans (kitchen, bath, etc.)

•Range hoods

•Combustion air requirements for furnaces, water heaters and other combustion appliances

•Clothes dryers

•Location of return-air vents to furnace or air conditioning

•Imbalances of the HVAC air handling system

•Upper level air leaks such as:

-Recessed lighting

-Attic hatch

-Duct leaks

To minimize the effects of negative air pressure:

•Install the outside air kit with the intake facing prevailing winds during the heating season

•Ensure adequate outdoor air for all combustion appliances and exhaust equipment

•Ensure furnace and air conditioning return vents are not located in the immediate vicinity of the fireplace

•Avoid installing the fireplace near doors, walkways or small isolated spaces

•Recessed lighting should be a “sealed can” design

•Attic hatches weather stripped or sealed

•Attic mounted duct work and air handler joints and seams taped or sealed

•Basement installations should be avoided

NOTICE: Hearth & Home Technologies Inc. recommends the use of direct vent fireplaces in basements.

Heat & Glo • HST-48D US-CAN • 4012-040 • Rev F • 11/08

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Hearth and Home Technologies HST-48D owner manual Design and Installation Considerations, Draft, Negative Pressure
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HST-48D specifications

Hearth and Home Technologies (HHT) is renowned for its commitment to innovation and quality in the hearth industry, and the HST-48D model exemplifies this dedication. The HST-48D is a versatile and efficient gas fireplace designed to enhance both residential and commercial spaces. With its modern aesthetic and impressive performance, it has become a popular choice among homeowners and builders alike.

One of the standout features of the HST-48D is its sleek design. Featuring a large viewing area, the fireplace allows for maximum visibility of the dancing flames while contributing to a contemporary décor. The clean lines and elegant finish make it a perfect fit for various interior styles, from traditional to modern. Optional decorative fronts and media options offer further customization, enabling homeowners to tailor the look of their fireplace to match their personal taste.

In terms of performance, the HST-48D boasts a high efficiency rating, ensuring that it not only provides warmth but does so in an eco-friendly manner. The fireplace operates on natural gas or propane, offering flexibility in terms of fuel choice, and its efficient burner system generates a significant amount of heat while minimizing energy consumption. This makes it an excellent option for both primary and supplementary heating.

The HST-48D is equipped with advanced technology to enhance user experience. The fireplace features a state-of-the-art electronic ignition system, allowing for reliable and easy starts. Additionally, the multi-function remote control gives users the ability to adjust the flame height, control the blower, and manage other settings with ease from the comfort of their chair.

Safety is another key characteristic of the HST-48D. It adheres to strict safety standards and includes features such as a tempered glass front to prevent accidental burns, ensuring peace of mind for families and pets.

Overall, the Hearth and Home Technologies HST-48D represents a fusion of aesthetics, technology, and safety. Its modern design, high efficiency, and user-friendly features make it a standout choice for those looking to enhance their living spaces with a reliable and stylish heating solution. Whether for relaxing evenings with family or entertaining guests, the HST-48D transforms any environment into a warm and inviting haven.
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