Natural Draft Burners
Product Overview
ZIRCO distributes Flameco Industries natural draft burners designed for oil and gas industry applications. These burners have been serving the industry with top-performing natural draft burners and vessel accessories for over 40 years.
Available in multiple configurations including O-Type, Hinge Type, Box Type, and Side Mount designs. Each burner can be customized with various enhancement options such as reduced noise, low noise, air control, elevated air supply, and combinations to meet specific site requirements.
ZIRCO Advantage: Local Western Canada Support
- check_circle Immediate technical support from Calgary, AB
- check_circle Quick delivery across Western Canada
- check_circle Application engineering for Alberta's oil & gas conditions
Why Choose Flameco Natural Draft Burners?
40+ Years Experience
Proven design reliability since 1980 with thousands of installations worldwide
Custom Configurations
13 design options with 10 enhancements and 9 add-ons for perfect application fit
Noise Reduction Options
Reduced Noise and Low Noise designs for community-conscious operations
Wide BTU Range
50,000 to 15,000,000 BTU/hr covering small to large applications
Multiple Mount Options
O-Type, Hinge Type, Box Type, and Side Mount configurations
Quality Assured
Manufactured to exacting standards with full technical documentation
Natural Draft Burner Types
Side Mount Configuration
Recommended BTU Range
50,000 – 2,000,000 BTU/hr
Flame Cell Size Range
10” - 48”
Recommended for Firetube Sizes
4” – 30”
Recommended Use
Clearance & ease of access
O-Type Burner Specifications
Design Type
Cylindrical Standard Design
Best Applications
General Purpose
BTU Range
50,000 - 2,000,000 BTU/hr
Firetube Sizes
4" - 30" diameter
Hinge Type Burner Specifications
Design Type
Hinged Removable Design
Best Applications
Easy Maintenance Access
BTU Range
50,000 - 2,000,000 BTU/hr
Firetube Sizes
4" - 30" diameter
Box Type Burner Specifications
Design Type
Rectangular Box Design
Best Applications
Space-Constrained Installations
BTU Range
50,000 - 10,000,000 BTU/hr
Firetube Sizes
4" - 30" diameter
Typical Applications
Oil & Gas Production
Heater treaters, separator heaters, glycol reboilers
Water Treatment
Dehydration units, heat medium systems
Industrial Processing
Process heaters, thermal oxidizers, incinerators
Agricultural Operations
Grain dryers, heating systems, livestock facilities
Available Burner Types
| Type | Description | Best For |
|---|---|---|
| O-Type | Standard cylindrical design with multiple configuration options | General purpose applications |
| Hinge Type | Hinged design for easy access and maintenance | Limited access installations |
| Box Type | Rectangular enclosure design with enhanced durability | Heavy-duty applications |
| Side Mount | Side-mounted configuration for clearance requirements | Space-constrained areas |
Natural Draft Burner Designs
Current supported Natural Draft Burner Designs with multiple customization options available.
| Design | O-Type | Hinge Type | Box Type | Side Mount |
|---|---|---|---|---|
| Standard | ✓ | ✓ | ✓ | ✓ |
| Reduced Noise | ✓ | ✓ | ✓ | ✓ |
| Air Control Reduced Noise | ✓ | ✓ | ✓ | ✓ |
| Push-Pull Air Control Reduced Noise | ✓ | ✓ | ✓ | ✓ |
| Push-Pull Air Control Low Noise | ✓ | ✓ | ✓ | ✓ |
| Low Noise | ✓ | ✓ | ✓ | ✓ |
| Elevated Air Supply | ✓ | ✓ | ✓ | ✓ |
| Elevated Air Supply Reduced Noise | ✓ | ✓ | ✓ | ✓ |
| Elevated Air Supply Low Noise | ✓ | ✓ | ✓ | ✓ |
| Elevated Air Supply Rotary Air Control | ✓ | ✓ | ✓ | ✓ |
| Cam Lock | ✓ | ✓ | ✓ | ✓ |
| Air Control | ✓ | ✓ | ✓ | ✓ |
| Air Control Low Noise | ✓ | ✓ | ✓ | ✓ |
Elevated Air Supply
A safety system designed to burn off excess or unusable gases at high elevations, minimizing fire hazards.
Reduced & Low Noise
An insulated design targeted at satisfying site noise requirements. The Reduced Noise is partially insulated for cost-effectiveness, while Low Noise is fully insulated with a baffle plate for maximum noise reduction.
Air Control
A pneumatic push-pull, or rotating, system that controls the primary air flow draft. Optimizes draft through air supply while reducing start-up cycles.
Combining Designs
Engineering expertise and manufacturing capabilities enable production of various design combinations to meet customer requirements.
Natural Draft Burner Enhancement Options
Options that are included in the manufacturing design and production of the natural draft burner.
| Enhancement | O-Type | Hinge Type | Box Type | Side Mount |
|---|---|---|---|---|
| 6” x 6” Access | ✓ | ✓ | ✓ | ✓ |
| Lifting Lugs | ✓ | ✓ | ✓ | ✓ |
| Manway | ✓ | ✓ | ✓ | ✓ |
| Purge Fan | ✓ | ✓ | ✓ | ✓ |
| Quick-Clamps | ✓ | ✓ | ✓ | ✓ |
| UV Sight Tube | ✓ | ✓ | ✓ | ✓ |
| Welded Flange Nuts | ✓ | ✓ | ✓ | ✓ |
| XFMR (Transformer Bracket) | ✓ | ✓ | ✓ | ✓ |
| Cam Lock | ✓ | ✓ | ✓ | ✓ |
| Ignition Module Bracket | ✓ | ✓ | ✓ | ✓ |
6” x 6” Access
Enables easy access to internal piping, main burner, and pilot assemblies.
Lifting Lugs
Provide additional safety and stability with transporting, mounting, or securing the burner. Recommended when mounted more than 4 ft from the ground.
Manway
Manway covers are attached by nuts & bolts, providing easy access to internal components.
Purge Fan
Purge fans push air through the firetube and stack, eliminating residual gas.
Transformer Bracket (XFMR)
Transformer Brackets are made to mount inside the housing.
Ignition Module Bracket
Ignition module brackets securely mount burner management systems for reliable installation.
Quick-Clamps
Provides technicians with ease of access to burner internals. Quick-clamps are welded to the housing for seamless maintenance.
UV Sight Tube
Enables automatic flame monitoring for the burner.
Welded Flange Nuts
Aluminum nuts welded inside the housing for ease of mounting and removing the flame arrestor.
Natural Draft Burner Add-On Options
Options that are produced and attached as a separate part to the natural draft burner.
| Add-On | O-Type | Hinge Type | Box Type | Side Mount |
|---|---|---|---|---|
| Companion Flange | ✓ | ✓ | ✓ | ✓ |
| Extension Nipples | ✓ | ✓ | ✓ | ✓ |
| Extension Spool | ✓ | ✓ | ✓ | ✓ |
| Gasket | ✓ | ✓ | ✓ | ✓ |
| Manual Secondary Air Control Spool | ✓ | ✓ | ✓ | ✓ |
| Return Flu Gas | ✓ | ✓ | ✓ | ✓ |
| Threaded Vent Arrestor | ✓ | ✓ | ✓ | ✓ |
| Transformer Bracket | ✓ | ✓ | ✓ | ✓ |
| Ignition Module Bracket | ✓ | ✓ | ✓ | ✓ |
Companion Flange
Mounting flange adapter that connects the burner flange to unique customer requirements.
Extension Nipple
A custom threaded pipe to extend the nozzle/flame into the firetube to the proper and safe depth. Recommended when the nozzle is not placed within the bath solution (4" - 6").
Extension Spool
A mounting spool used to extend the flame arrestor past an obstruction. Recommended when the stack overhang exceeds the standard or when retrofitting the current unit.
Manual Secondary Air Control Spool
Control secondary airflow going into the firetube. Aimed at retaining heat in the firetube and reducing cycle times.
Return Flue Gas
Ideal for units that have the intention of returning flue gas for reuse. Also recommended for extreme weather conditions.
Threaded Vent Arrestor
Designed for end-of-line vertical venting, this arrestor enables unrestricted airflow while providing flame protection for storage tanks and atmospheric vent lines. Ideal for low-pressure systems, it prevents flame ingress without impeding normal breathing and venting operations.
Gasket
Recommended for all flange connections. The gasket provides a seamless seal aimed at preventing air or liquid from entering or exiting the flange connection.
Product Literature & Resources
Technical Documents
Product Specifications
Complete technical specifications for all burner types and configurations
Installation Manual
Step-by-step installation guidelines and safety procedures
Request for Quote
Burner Management System RFQ Form
Download and complete this form to submit your burner system requirements for quotation
Need More Information?
Our team is ready to help you select the right natural draft burner configuration for your application.
Phone:
(403) 230-3600
Email:
sales@zirco.ca
Frequently Asked Questions
What is the BTU range of natural draft burners?
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Our natural draft burners offer BTU ranges from 50,000 to 15,000,000 BTU/hr, with multiple configurations available to match specific application requirements.
What burner types are available?
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We offer O-Type, Hinge Type, Box Type, and Side Mount configurations. Each type can be customized with various design options including standard, reduced noise, low noise, air control, and elevated air supply designs.
What enhancement options are available?
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Available enhancements include 6x6 access ports, lifting lugs, manway covers, purge fans, quick-clamps, UV sight tubes, welded flange nuts, transformer brackets, ignition module brackets, and cam lock systems.
What add-on accessories can be included?
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Add-on options include companion flanges, extension nipples, extension spools, gaskets, manual secondary air control spools, return flue gas systems, threaded vent arrestors, and mounting brackets.
What is the difference between Reduced Noise and Low Noise
designs?
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Reduced Noise is partially insulated for cost-effectiveness when extreme noise reduction is not required. Low Noise is fully insulated with a baffle plate for maximum noise reduction, ideal when the operational site is near local communities.
Which burner type is best for my application?
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O-Type: Best for general purpose applications with standard firetube configurations.
Hinge Type: Ideal when frequent maintenance access is required - hinged design allows easy removal.
Box Type: Designed for space-constrained installations where vertical clearance is limited.
Side Mount: Perfect for applications requiring side-entry burner installation.
Do I need an Elevated Air Supply design?
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Elevated Air Supply designs are recommended when combustion air must be drawn from above grade level to avoid contaminated air at ground level. This is common in facilities with nearby exhaust sources, heavy vehicle traffic, or processes that generate fumes. ZIRCO can assess your site conditions and recommend the appropriate configuration.
What is the lead time for Natural Draft Burners?
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Standard configurations typically ship within 2-4 weeks. Custom or complex configurations may require 4-6 weeks. ZIRCO maintains stock of common burner types in Calgary for immediate delivery across Western Canada. Contact us for current availability and delivery estimates for your specific requirements.
Ready to Serve Your Industry?
Contact our team today to discuss how ZIRCO can provide specialized solutions for your industry needs with expertise spanning over 40 years of service across Western Canada.