Vertical Sidewall Applications

Since it is very important that the venting system maintain its balance between the combustion air intake and the ue gas exhaust, certain limita- tions as to vent congurations apply and must be strictly adhered to.

The Vent Graph showing the relationship between vertical and horizontal side wall venting will help to determine the various dimensions allowable.

Minimum clearance between vent pipes and combustible materials is one 1"(25mm) on top, bottom and sides unless otherwise noted.

When vent termination exits through foundations less than 20" below siding outcrop, the vent pipe must ush up with the siding.

It is always best to locate the replace 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 ue collar of the replace to the face of the outer wall.

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

•The maximum number of 90º elbows per side wall instal- lation is three (3).

Fig. 18

•If a 90º elbow is tted directly onto the replace ange the maximum horizontal vent run before the termination is 36" (914 mm).

•If a 90º elbow is used in the horizontal vent run (level height maintained) the maximum horizontal vent length is reduced by 36" (914 mm), (Fig. 20). This does not apply if the 90º elbows are used to increase or redirect a vertical rise (Fig. 21).

Example: According to the chart the maximum horizontal vent length in a system with a 7.5' vertical rise is 20' (6 m) and if a 90º elbow is required in the horizontal vent it must be reduced to 17' (5.2 m).

In Fig. 20 Dimension A plus B must not be greater than 17' (5.2 m).

Fig. 20

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

•For each 45º elbow installed in the horizontal run, the length of the horizontal run MUST be reduced by 18" (45cm). This does not apply if the 45º elbows are installed on the vertical part of the vent system.

•The maximum number of elbow degrees in a system is 270º (See Fig. 21).

Example: In Figure 21

Elbow 1	=	90º
Elbow 2	=	45º
Elbow 3	=	45º
Elbow 4	=	90º
Total angular variation	=	270º

	Fig. 19	Fig. 21

DBT33/DBT36/DBT39	-12-	10002789/0

DBT39, DBT36, DBT33 specifications

Vermont Castings has long been a name synonymous with quality and craftsmanship in the realm of cast iron stoves and fireplaces. Among their range, the DBT33, DBT36, and DBT39 models stand out due to their unique features and advanced technology, designed to meet the varying needs of homeowners looking for an efficient heating solution.

The DBT33 model offers a compact yet powerful design, making it ideal for tighter spaces while still delivering robust heating capabilities. With a BTU output of up to 33,000, it can effectively warm a medium-sized room. One of its main features is the advanced air wash system that helps keep the glass clean, providing you with an unobstructed view of the mesmerizing flames. It’s equipped with Vermont Castings' patented Intelli-Fire technology, which provides a user-friendly operation, ensuring optimal efficiency and performance.

Moving up in size and features, the DBT36 is built for slightly larger spaces but retains the same elegant design and efficiency. It boasts a BTU output of up to 36,000, making it suitable for larger rooms or even open-concept spaces. One standout characteristic is its built-in thermostat that automatically adjusts the burner to maintain a consistent temperature. This model also incorporates a secondary combustion system, which boosts efficiency and reduces emissions, making it an eco-friendlier choice.

Finally, the DBT39 takes it a step further with a powerful output of up to 39,000 BTUs, perfect for heating expansive areas. It features a sleek design that fits seamlessly into various home aesthetics, whether modern or traditional. Notably, the DBT39 is designed with multiple burning modes, allowing users to choose between high heat for quick warmth or lower settings for prolonged, even heat. Its innovative heat exchanger design improves heat transfer, ensuring maximum efficiency while lowering fuel consumption.

All three models utilize Vermont Castings' renowned cast iron construction, which not only enhances durability but also improves heat retention. They also come equipped with safety features such as a built-in heat shield to prevent overheating, ensuring peace of mind for users.

In summary, the Vermont Castings DBT series – DBT33, DBT36, and DBT39 – offers a range of options tailored to various heating needs. Their combination of stylish design, robust performance, and advanced technologies sets them apart in the market, appealing to homeowners who value both functionality and aesthetics in their heating solutions. With Vermont Castings, warmth and elegance go hand in hand.