STACK AND BREECHING DESIGN ASSISTANCE:

Contact your local Heat & Power Products office for assistance with stack sizing, layout, specifications and code issues. Job specific CAD drawing available. Request a "Stack Sizing" handbook.

Features: engineered venting systems are covered by the Selkirk-Metalbestos "Extended 10-year Warranty".

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 BOILER STACKS, POSITIVE PRESSURE

5" - 48" I.D. Modular prefabricated U.L Listed Boiler Venting Systems. 1000º F continuous and 1400º F intermittent temperature rating.

Features: Complete line of fittings. Double-wall. Stainless steel. Fiber insulation. Category I & III venting. Models PS & IPS Options for: Fiber insulation and stainless steel outer jackets. Free standing systems available.

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 BOILER STACK, TYPE B - NEUTRAL OR NEGATIVE DRAFT

A complete line of Type "B" venting solutions.

Features: UL Listing, Category I venting, Models DF, QC, SSII, RV, DS, SG. Stainless steel options.

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 SPECIAL GAS VENT

Gas vent system with built-in gaskets designed for use with Category II, III, IV gas fired appliances. Model CV AL29-4C ® a single wall special gas vent.

Features: easy installation, UL Listing.

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 GREASE DUCT

Use with cooking appliances, ventilation hoods, restaurant grease ducts, and pizza oven exhausts. 5" - 48" I.D. Modular prefabricated systems.

Features: 500º F continuous and 2000º F intermittent temperature rating. UL listed. Reduced clearance to combustible surfaces. Options for: Fiber insulation and stainless steel outer jackets.

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 ENGINE EXHAUST

Use with Industrial furnaces, processing equipment, kilns/ovens, diesel/turbine exhausts. 5" - 48" I.D. Modular prefabricated systems.

Features: 1400º F continuous and 1800º F intermittent temperature rating. UL listed. Reduced clearance to combustible surfaces. Options for: Fiber insulation and stainless steel outer jackets.

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 BOILER BREECHING AND STACK SYSTEMS

• UL Listed Flue Venting systems for category I, II, III and IV appliances
• Single and Double wall (air or fiber insulated)
• Positive, neutral and negative pressures
• Stainless Materials of construction: 304, 316, and AL29-4C.
• Job Specific vent sizing and Cad drawings available.

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 Heat-Fab's Special Gas Vent is an AL 29-4C® stainless-steel inner wall venting system designed for use with any Listed Category I, II, III, or IV gas-fired appliance. Ideal for venting mid- and high-efficiency natural gas and propane fired equipment with condensing flue gases and for systems with positive-pressure venting requirements including sealed combustion applications.

Features: Single or Double-wall Construction, AL 29-4C Flue-Gas Conduit Ring-and-Tab External Closure System, 100% Welded Seams and Consistent Sizing, Smooth Wall Design, Full Range of Sizes 3"-32, UL Listed

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 BOILER BREECHING AND STACK SYSTEMS

• UL Listed Flue Venting systems for category I, II, III and IV appliances
• Single and Double wall (air or fiber insulated)
• Positive, neutral and negative pressures
• Stainless Materials of construction: 304, 316, and AL29-4C.
• Job Specific vent sizing and Cad drawings available.

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 CHIMNEY AUTOMATION SYSTEM (CASV)

Ensure boilers operate at maximum efficiency by providing constant draft at all firing rates. System senses draft and modulates fan speed as stack conditions or firing rate change to maintain desired draft setting. System solves difficult venting arrangements, allows different category appliances to be connected to a common stack and often reduces vent size and stack height. Vent sizing is determined and guaranteed by the manufacturer.

Features: Maintains perfect draft under all conditions. Eliminates common code violations. Reduced stack costs by allowing for a smaller stack size. Improve boiler efficiency and operation.

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 CHIMNEY FAN

Mechanical draft fan for installation at the chimney termination point, vertically or for side-wall venting. Assures a negative pressure in the entire chimney or stack system. Discharges horizontally (vertically, if side-wall vented) at a high velocity. Cast aluminum design.
Futures: Variable speed, smaller stack sizes, solves code issues, high efficiency

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 MODULATING COMBUSTION AIR SYSTEM (MCAS)

Provides make-up combustion air to boiler room exactly matching burner requirements. System senses room air pressure and modulates variable speed fan to match combustion air to burner firing rate by maintaining a constant room pressure. Replaces large combustion air louvers that often introduce excess cold air into the boiler room.

Features: Lower installation costs, smaller wall penetration, matches exact combustion air requirement.

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 KITCHEN VENTILATION SYSTEM

Products that include: Grease fans for kitchen hoods; Grease fans for wood-fired pizza ovens & BBQ's; Chimney Fans for fireplaces

Fans are designed and manufactured to be the best kitchen exhaust fans available and to meet future requirements for energy efficiency. Direct Drive and Variable Speed are standard. All fans are ruggedly built with only the highest quality components and have an unmatched history for reliability and durability.

For the kitchen ventilation market we offer a comprehensive line of ventilation

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 MECHANICAL DRYER VENTING SYSTEM (MDVS)

Use with multiple commercial laundry dryers. The purpose of the system is to solve common dryer venting problems (excessive drying time) and allow for alternative designs of the venting systems. The mechanical dryer venting system maintains a perfect, constant operating pressure for the dryers by modulating the fan capacity.

Features: Constant draft for improved energy efficiency and safety. Faster drying. Smaller ducts

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 INLINE BOX VENTILATOR

Inline Ventilator is intended for use as an exhaust or supply fan. It can be installed in-line or at a termination point in a stack or duct system. Typical uses are: boiler exhaust, residential kitchen exhaust, general exhaust applications and combustion air supply.

Features: Low energy consumption, Variable speed, Compact Design

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 MECHANICAL DRAFT SYSTEM

Purpose: Ensure boilers operate at maximum efficiency by providing constant draft at all firing rates. System senses draft and modulates fan speed as stack conditions or firing rate change to maintain desired draft setting. System corrects difficult venting arrangements, allows different category appliances to be connected to a common stack and often reduces vent size and stack height. Vent sizing is determined and guaranteed by the manufacturer.

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 MODULATING COMBUSTION AIR SYSTEM

Purpose: Provide make-up combustion air to boiler room to match burner requirements. System senses room air pressure and modulates variable speed fan to match combustion air to burner firing rate by maintaining a constant room pressure. Replaces large combustion air louvers which often introduce excess cold air into the boiler room.

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 ECONOMIZERS (AIR TO WATER)

Recover waste heat from the boiler flue gas and transfer heat to desired heat sink (boiler feed water, domestic water, etc.)

• Increases overall boiler efficiency
• Vertical, horizontal and cylindrical arrangements.
• Payback analysis available.

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