Colorado Boiler Stack Supply
Tri-Tech Sales supplies Van-Packer boiler stacks, breechings, and chimney venting for Colorado's commercial and industrial operators. The wrong stack costs you draft, efficiency, and sometimes a failed inspection — so we spec to your boiler's flue-gas temperature, vent pressure, fuel, and clearances.
Our Denver office reaches boiler-heavy facilities across the Front Range and beyond: hospitals, schools, breweries and food processing, data centers, high-rise commercial, and manufacturing. We handle re-vents after a boiler swap, corroded-stack replacements, and new-plant specification — with the drawings and submittals your engineer and inspector expect. Every product is backed by Van-Packer, UL/ETL-listed since 1944.
Why Colorado Facilities Come to Tri-Tech Sales
Colorado adds a factor most states don't: altitude. Combustion and draft behave differently at 5,000-plus feet, and appliance derating and venting have to account for it — which makes correct stack specification more consequential here, not less. We see everything from legacy single-wall stack due for replacement to positive-pressure venting on modern condensing and Category IV equipment. What we bring:
- Boiler stacks, breechings, and chimney venting matched to your fuel, temperature, and pressure
- Standard and custom-engineered sizing for retrofit and new construction
- Technical drawings, submittal support, fast quotes, and factory coordination
- A Denver base and 25+ years of Midwest and Mountain West equipment experience behind every job
)
Local Colorado Specialist
Phone: 720-719-8550
Email: rockymountain@tritechsales.com
Office Location: Denver
Office Hours: Monday – Friday: 7:00am – 4:00pm
24/7 Support: 800-874-9920
Brands we represent
The Van-Packer Lines We Supply
- Model DW & DW Plus — Flagship double-wall for high-temp and combustion gas venting. UL listed; 6"–48" plus custom; tees, elbows, supports.
- Model CS & CS Plus — UL 1738 special gas venting for Category II, III, IV. 4"–36", rated 550°F and 5" w.c. positive; natural gas and propane; 2" clearance to combustibles.
- Model MW — Single-wall special gas vent (UL MH45778). 4"–48"; max 550°F; negative, neutral, positive pressures.
- PRV — Factory assembly relieving pressure spikes to protect the stack; per NFPA 37. (Pending: confirm Van-Packer's exact product name/term before publishing.)
How We Spec the Right Stack for a Colorado Job
Matching the boiler outlet diameter is only the starting point. We build the selection around flue-gas temperature, vent pressure (negative, neutral, positive), fuel type and appliance category, required diameter and sizing, clearances to combustible and non-combustible materials, interior vs. exterior routing, and configuration (tees, elbows, supports). Colorado's altitude affects combustion air and draft, and Front Range winters add freeze-thaw and cold-start condensation to the material-selection picture. Because selection is application-specific, we confirm the final choice against the appliance manufacturer's venting requirements and the authority having jurisdiction.
)
Frequently Asked Questions
How do I determine the right boiler stack for my Colorado facility?
It depends on fuel type (natural gas, oil, propane), flue-gas temperature, vent pressure (negative, neutral, or positive), appliance category (II, III, or IV), and clearance requirements — and at Colorado altitudes, combustion-air and draft effects that flatland specs don't account for. From our Denver office we help Colorado customers spec to those parameters, then confirm the final selection against the appliance manufacturer's venting requirements and the local authority having jurisdiction (AHJ).
Does Colorado's altitude affect boiler stack selection?
Yes. Thinner air at Front Range and mountain elevations changes combustion and draft behavior, and many appliances are derated above certain altitudes. That affects venting sizing and configuration, so we factor elevation into the spec rather than treating a sea-level selection as good enough.
Which parts of Colorado does Tri-Tech Sales cover?
Our Denver office covers the metro area and the Front Range corridor from Fort Collins to Pueblo, and we coordinate statewide — including mountain and Western Slope facilities — as jobs require.
Can I replace just the boiler stack, or do I need to replace the whole system?
In most cases the stack can be replaced independently, as long as the existing boiler's operating temperature, vent pressure, and appliance category still match the new stack's specifications. Corrosion, condensation damage, a fuel-type change, or an equipment upgrade that shifts flue-gas conditions are the usual triggers. We evaluate your current setup and specify a compatible replacement.
Are the boiler stacks UL/ETL listed and compliant with Colorado codes?
Yes — all boiler stacks are UL/ETL listed, including UL 1738 for Category II–IV special gas venting. Model selection and installation should be verified against applicable Colorado code and reviewed by the local authority having jurisdiction (AHJ) for full compliance on your specific application.
Do you do new installation?
Yes, we sell stacks for new installs. We maintain competitive pricing and broad equipment selection so regardless of the application your business is taken care of. From emergency stack replacements to new installation, start with Tri Tech sales.
From Stacks, to Pressure Vessels and Parts - We Have You Covered.
Tri-Tech Sales is a leading Colorado supplier of commercial boilers and industrial boiler-plant equipment, including pressure vessels, burners, and the boiler stacks and venting systems that support them. Our boilers and pressure vessels are engineered for efficient steam and hot water generation, built and tested to meet ASME code standards for maximum allowable working pressure compliance. Each unit includes critical safety devices like safety relief valves to protect against overpressure. Designed for optimal flow and heat transfer, our equipment ensures reliable performance and long service life. The boiler stacks and venting we provide are UL/ETL listed and carefully matched to your system’s operating temperature, vent pressure, fuel type, and appliance category. Serving Colorado Springs, Denver, and the broader commercial and industrial markets statewide. Tri Tech Sales delivers quality equipment and integrated burner, boiler, and stack solutions that meet Colorado’s strict codes and environmental requirements, with a strong focus on safety, maintenance, and performance.
)
Contact Us
24/7: 800-874-9920
Phone: 720-719-8550
Email: rockymountain@tritechsales.com
Office Location: Denver
Office Hours: Monday – Friday: 7:00am – 4:00pm