Does An Indoor Gas Fired Makeup Need Flues

Direct-Fired Systems

Flexible units for space heating, make-up air, and ventilation applications

Gas Burner Section

Factory prepare and tested to ETL standards for 100% efficiency.

Gas Manifold

Completely factory assembled and tested.

Optional Intake Hood

For outdoor models (DFC, DFL), Applied Air offers a complete matching intake hood.

Filter

Optional filter module keeps out bugs and helps minimize accumulation of dust, dirt, and airborne particles in the space.

Admission Doors

Full size doors provide easy admission to fan, burner, and controls. Access doors are hinged and use industrial grade fasteners.

Blowers

Direct Fired units feature centrifugal blowers tested to AMCA standards and motors with adjustable bases.

When more air is exhausted from a building than is supplied by the mechanical systems, the building is nether a "negative" condition and air will leak into the building through cracks, windows and doors. A negative condition results in the post-obit:

• Flues and stacks will experience a backdraft and cause unsafe contaminants to remain in the occupied infinite. In the case of flues, the products of combustion may condense and corrode the equipment.
• The exhaust system sees a greater static pressure which reduces the chapters of each fan, resulting in an inadequate removal of contaminants and wasted horsepower.
• Drafts and cantankerous currents will increase, causing an uncomfortable or unhealthy work environment.

Direct Firing eliminates the need for heat exchangers, resulting in 100% efficiency. All products of combustion are introduced into the supply air stream at concentrations well below code requirements. Equally natural gas is an abundant, make clean and low price fuel that is readily available, this system is very cost effective to operate.

How Direct Fired Gas Heating Works

Straight Fired gas heating is one of the simplest and most cost-constructive methods for heating air. Outside air enters the unit (at point C) and is either filtered or not. If desired, a quantity of returning room air can be added (B) to this outside air in a balanced fashion to assure a abiding total airflow. This air then passes over a line burner: The airflow pattern is closely controlled using profile plates, resulting in 100% efficient combustion.

The air is directly heated by this make clean, controlled gas flame and distributed into the building using heavy duty centrifugal blowers (K). Past carefully decision-making the airflow blueprint and volume, the system can provide complete, 100% combustion. Complete combustion produces only h2o vapor and carbon dioxide (CO2). Harmful combustion by-products are the result of incomplete combustion and a good reason why y'all should buy from an established expert in gas heating technology.

Features and Benefits of Direct Fired Gas Heating

• The heavy gauge galvanized steel outer panels are designed to eliminate rust for longer life.
• Blowers tested to AMCA standards assure proper airflow for efficient operation.
• The ETL approved, single speed, natural gas fired unit offers adjustable burner profile plates and control arrangement for modulation down to 4% of full input. This delivers the precise amount of gas to the burner, maintaining the exact temperature setting with the lowest possible gas usage.
• The 140 bespeak concluding test process for every Applied Air Direct Fired unit means fewer start-up issues.
• For maximum flexibility, units tin exist installed indoors or outdoors, vertically or horizontally, or include evaporative cooling modules.
• Direct Fired units are 100% efficient.

Heats Without Complications

The Direct Fired gas heating system heats efficiently and cost-effectively using no heat exchanger.

Replaces Indoor Air

The Direct Fired gas heating system replaces indoor air that can become chemic laden in an industrial process or commercial cooling awarding.

Provides Ventilation

Fresh air is available simply by turning off the heating section.

Air Delivery for Modest or Large Buildings

With fans tested to AMCA standards for airflow from ane,600 to 100,000 CFM, you can put warm air right where you need it.

Improves Comfort Anywhere, Anytime

Add cost-effective evaporative cooling to your Direct Fired gas heating system for year-round comfort.

Cleans and Tempers Incoming Air

The optional filter bank removes airborne particles, and cleaned air is heated to create a more than refreshing and comfortable indoor environment.

Source: https://www.appliedair.com/direct-fired-systems.asp

Posted by: murphyhatiorth.blogspot.com

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