Clearance to Combustibles

If mounting the venting system near combustible materials, refer to Diagram A for allowable installation clearances. Clearances are based on an installation using single wall galvanized steel vent pipe. If manufactured double wall vent pipe is required or used for the installation, clearance should be based on the vent pipe’s rated clearance. Always check local code requirements for code restrictions.

Routing of the vent system and clearances for the vent pipe may be planned once the termination location is determined. Route the vent pipe from the appliance to the venter using as few elbows as possible. The horizontal section of the vent pipe should have a slight upward slope from the appliance to the venter. The vent pipe size (diameter) can be smaller than a typical chimney vented system and still overcome the higher pressure losses because the power venter mechanically creates the required draft or air flow to vent the system.

For estimating the minimum vent pipe diameter for an oil system, multiply GPH by 140,000 BTU/GAL, then divide by 12,600 BTU/sq. in. This will give the minimum cross sectional area required. (See Table 3 for area to diameter conversion.) For multiple equipment venting systems, divide the total BTU/hr. input for all appliances by 9,300 BTU/sq. in. This will give you the minimum vent pipe diameter needed for the common breaching of the vent system.

As a rule of thumb, size the vent pipe to the outlet diameter of the heating equipment for a single appliance venting system. For multiple appliance venting systems, use the outlet diameter of the largest unit and add 50%.

Diagram A

Single Pipe System

Allowable Inlet Temperature

Clearance (B)

 

 

400ºF or Less

3" min.

550ºF or Less

4" min.

550ºF or Less

3" min.*

Double Pipe System

Allowable Inlet Temperature

Clearance (A)

 

 

400ºF or Less

.5" min.

550ºF or Less

1" min.

550ºF or Less

.5" min.*

* With galvanized sheet metal liner or equivalent

METAL LINING FOR

A B

SQUARE HOLE

THROUGH WALL

550°F-400°F INPUT TEMP.

FLOOR JOIST

B

COMBUSTIBLE

MATERIAL

A

A

 

B-VENT

 

 

ELBOW

 

 

INPUT TEMP.

LOCATION

Table 3

Pipe Size

Nominal

Cross-Sectional Area

 

Sq. Inches

 

 

3"

7

4"

13

5"

20

6"

28

7"

38

8"

50

9"

64

10"

79

12"

113

14"

154

COMBUSTIBLE

 

 

 

MATERIAL

FLOOR JOIST

 

SWG SERIES

 

A B

FLOOR

 

POWER VENTER

INPUT TEMP.

 

LOCATION

 

OUTER PIPE

 

EXTENSION

BLOCK

 

END PIPE COVER

FOUNDATION

 

FROM SWG UNIT

 

B-VENT or

 

L-VENT

 

ELBOW

 

10

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Field Controls Oil Venting Systems manual Clearance to Combustibles, Diagram a, 113, 154
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Oil Venting Systems specifications

Field Controls Oil Venting Systems are engineered to enhance the efficiency and safety of oil heating applications while ensuring environmental compliance. These systems are designed to facilitate the venting of combustion gases, preventing the buildup of harmful substances and maintaining optimal performance of oil-fueled heating appliances.

A standout feature of Field Controls Oil Venting Systems is their adaptability. They can be seamlessly integrated with a variety of oil-fired heating units, including furnaces and boilers. This versatility allows homeowners and businesses to upgrade or replace their existing venting systems with minimal hassle, leading to improved energy efficiency and reduced operational costs.

The technology that underpins these venting systems is designed to optimize airflow and minimize pressure drop, allowing for efficient exhaust of combustion gases. Field Controls employs advanced materials that are resistant to corrosive gases, ensuring a longer lifespan and reduced maintenance requirements. Additionally, their systems utilize a unique multi-hinge design, which enhances flexibility during installation, ensuring a perfect fit in a diverse range of configurations.

Field Controls also focuses on safety with features such as backdraft dampers and safety switches. These elements prevent backflow of exhaust gases into the living space, providing peace of mind for users. The systems are rigorously tested to comply with national safety standards, ensuring a reliable and secure installation for residential and commercial applications alike.

Moreover, Field Controls Oil Venting Systems prioritize efficiency by optimizing the venting process. This results in reduced energy consumption and lower emissions, aligning with modern environmental standards and helping users transition to more sustainable heating options.

In summary, Field Controls Oil Venting Systems represent a robust solution for oil heating applications, combining safety, efficiency, and adaptability. With their innovative design and commitment to quality, they provide users with a reliable means to manage oil venting, ensuring both comfort and compliance with environmental regulations. By investing in a Field Controls system, customers can enhance their heating systems while contributing to a cleaner and more efficient future.
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