Complete the Enclosure | Hearth and Home Technologies ST42A manual

6Complete the Enclosure

A. Chimney Termination

Chimney Termination Requirements (See Figures 6.1 and 6.2)

•Must have a cap approved and listed for this ﬁ replace system

•Must not be located where it will become plugged by snow or other material

•Must terminate at least 3 ft (914 mm) above the roof and at least 2 ft (610 mm) above any portion of the roof within 10 ft (3.05 m).

•Must be located away from trees or other structures

Slanted Roofs

Chimney must			Chimney must extend 2 ft (.6 m)
Chimney must			above any portion of the roof
extend 3 ft (.9 m)			above any portion of the roof
extend 3 ft (.9 m)			within 10 ft (3 m) of the chimney
above the roof			within 10 ft (3 m) of the chimney

Flat Roofs

Chimney must extend 2 ft (.6 m) above any portion of the roof within 10 ft (3 m) of the chimney

Chimney must extend 3 ft (.9 m) above the roof

Figure 6.1 Termination Requirements

	Gas, Wood or Fuel
		Oil Termination
			20 in.
			(508 mm)
	18 in.		(minimum) to
	18 in.		Perpendicular
	(457 mm)		Wall
			(gas only)
			A
Gas
Termination
	Gas Termination		Wood & Fuel Oil Termination
A	6 in.	(152 mm)	20 in. (508 mm)
Figure 6.2		Multiple Chimneys

Mark the Exit Point of the Roof

Locate the point where the chimney will exit the roof by plumbing down to the center of the chimney. Drive a nail up through the roof to mark the center. See Figure 6.3.

Cut Out the Hole in the Roof

Measuretoeithersideofthenailandmarkthe17 in.x17in.(432 mm x 432 mm) or 17 in. x 26 in. (432 mm x 660 mm) opening required. This is measured on the horizontal; actual length may be larger depending on the pitch of the roof. Cut out and frame the opening. See Chapter 25 of the Uniform Building Code for roof framing details.

WARNING

Fire Risk

•Must maintain 2 in. (51 mm) air clearance

to insulation and other combustible materials.

Assemble the Chimney Sections Through the Roof
Continue to add chimney sections through the roof opening, maintaining at
least a 2 in. (51 mm) air space to combustible materials.
Install the Roof Flashing
If a roof ﬂ ashing is to be used, install the roof ﬂ ashing appropriate to the
roof pitch and install a round termination cap and storm collar following the
instructions shipped with the cap.	Figure 6.3 Ceiling/Attic Construction

20	Heatilator • ST42A • 35038 Rev G • 02/05

ST42A specifications

Hearth and Home Technologies ST42A is a highly regarded product in the realm of home heating, known for its excellent combination of functionality, efficiency, and aesthetic appeal. This stylish gas fireplace offers the perfect blend of modern design and superior technology, making it an ideal choice for homeowners seeking both comfort and elegance.

One of the main features of the ST42A is its remarkable heating capacity. With a BTU output ranging from 26,000 to 36,000, it efficiently warms spaces, making it suitable for medium to large living areas. This gas fireplace is designed to deliver heat effectively while maximizing energy efficiency, allowing users to enjoy warmth without incurring excessive energy costs.

The ST42A comes equipped with an advanced electronic ignition system, ensuring reliable startup and operation. This system not only adds convenience but also enhances safety, as it minimizes the risk of gas leaks. The fireplace is designed to operate on natural gas or propane, offering flexibility to homeowners based on their fuel availability and preferences.

In terms of design, the ST42A boasts a contemporary look that fits seamlessly into a variety of interior styles. Its large viewing area, framed by a stylish surround, allows for an impressive flame presentation that serves as a focal point in any room. The variable flame height adjustment feature allows users to customize the ambiance and comfort level, further enhancing the overall experience.

One of the standout technologies in the ST42A is its unique heat distribution system. This feature ensures that warmth is circulated throughout the room, rather than being concentrated in one area, promoting an even temperature distribution. Additionally, the fireplace is equipped with optional blower kits that can enhance air circulation, further improving the efficiency of heat delivery.

Maintenance is another significant consideration with any heating appliance, and the ST42A simplifies this with accessible components and easy cleaning features. The ceramic glass front is designed to resist soot buildup, ensuring a clear view of the flames and reducing the need for frequent upkeep.

Overall, the Hearth and Home Technologies ST42A stands out as a premium choice for those looking to add warmth and style to their home. With its powerful heating capabilities, advanced technologies, and elegant design, it represents an investment in both comfort and aesthetic enhancement for any living space.