Vertical Sidewall Installations

Since it is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to.

The graph showing the relationship between vertical and horizontal side wall venting will help to determine the various vent lengths allowable. Fig. 47.

Minimum clearance between vent pipes and combustible materials is one (1") inch (25

mm)on top, bottom and sides unless otherwise noted.

When vent termination exits through foundation less than 20" below siding outcrop, the vent pipe must flush up with the siding. A 7DVSS must also be used.

It is always best to locate the fireplace in such a way that minimizes the number of offsets and horizontal vent length.

The horizontal vent run refers to the total length of vent pipe from the flue collar of the fireplace to the face of the outer wall.

Horizontal plane means no vertical rise exists on this portion of the vent assembly.

For some installations, it may be desirable to have some amount of the horizontal vent run immediately after the fireplace. A vertical rise must be used but can be located any- where in the vent system, to meet the perim- eters identified in the venting graph.

The maximum horizontal vent run is 20 feet (6100mm) when the vertical vent rise is 7.5 feet (2286mm). Fig. 43

	MAXIMUM
	20 ft. (6100mm)
		48"
	12"	(1220mm)
	(305mm)
	15 ft.
	(4572mm)
90" (2286mm)
VERTICAL
DIMENSION	7TDVRT90
7.5 ft. MINIMUM	7TDVRT90
7.5 ft. MINIMUM	ELBOW
WHEN HORIZONTAL	ELBOW
WHEN HORIZONTAL
RUN IS 20 ft.
	SIDE VIEW
		Fig. 43

VERTICAL SIDEWALL APPLICATIONS

The maximum number of 90 degree elbows per side wall installation is four (4), (includes 7TDVRT90 off back of unit)

The maximum number of 45 degree elbows permitted per side wall installation is two (2). These elbows can be installed in either the vertical or horizontal run.

When one 90o elbow is installed directly onto another off the back of the fireplace the maximum horizontal vent length is 36" (914mm). Fig. 44.

MAXIMUM

3' (914mm)

7TDVRT90

ELBOW

SIDE VIEW

Fig. 44

For each 45 degree elbow installed in the horizontal run (while maintaining a constant horizontal plane), the length of the horizontal run MUST be reduced by 18" (457mm). This does not apply if the 45 degree elbows are installed on the vertical part of the vent system.

If a 90 degree elbow is used in the horizontal vent run (level height maintained) the maxi- mum horizontal vent length is reduced by 36 inches. Fig. 45. This does not apply if the 90 degree elbows are used to increase or redi- rect a vertical rise.

Example: According to the vent chart the maximum horizontal vent length is 20 ft.when the vertical height is 7.5 ft. from fireplace base height. If one 90 degree elbow is required in the horizontal vent it must be reduced to 17 ft.

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BHDR36 specifications

The Vermont Casting BHDR36 is a versatile and high-performing gas fireplace that seamlessly blends efficiency with style. This fireplace is distinguished by its 36-inch width and offers an impressive heat output, making it an ideal choice for both heating purposes and aesthetic appeal in any home setting.

One of the standout features of the BHDR36 is its innovative burner technology. The fireplace utilizes a dual burner system that ensures a consistently high efficiency rating, generating ample warmth while minimizing gas consumption. This is particularly beneficial for homeowners looking to reduce energy costs while enjoying a cozy ambiance.

The design of the BHDR36 is equally impressive. It features a large, tempered glass viewing area that allows for a panoramic view of the mesmerizing flames. This expansive glass front not only enhances the aesthetic appeal but also improves the overall heating performance by providing greater radiant heat distribution throughout the room. The minimalist design complements various interior styles, making it an excellent addition to both traditional and contemporary spaces.

Furthermore, the BHDR36 is equipped with Vermont Castings’ advanced heating technologies, including a built-in fan that circulates warm air effectively and evenly throughout the space. This ensures that every corner of the room receives warmth, eliminating cold spots and enhancing comfort during the colder months.

Ease of use is another hallmark of the BHDR36. It features a convenient remote control that allows users to adjust the flame height and heat settings with ease. The fireplace’s electronic ignition system ensures a reliable start-up every time, and the adjustable flame allows for a customizable experience based on individual preferences.

Safety is paramount, and Vermont Castings has designed the BHDR36 with this in mind. It includes features such as a safety shut-off valve and a protective screen to prevent accidental contact with the flames. These safety elements provide peace of mind for families and pet owners alike.

In summary, the Vermont Casting BHDR36 is a perfect combination of cutting-edge technology, stylish design, and user-friendly features. With its efficient heating capabilities, extensive viewing area, and significant attention to safety, it stands out as a top choice for homeowners looking to enhance their living spaces with a reliable and beautiful gas fireplace.