American-made since 1945
HVAC products built by installers, to save installers time.
Honnecke Manufacturing designs and builds furnace, A/C, electrical, and plumbing products from G90 steel — engineered for fast installs, easy service, and fewer callbacks.
Since 1945Designed by contractors
Every product comes from real install problems — built to adjust to unique jobs and cut time on site.
G90 steel, made in the USA
Domestically sourced materials and local labor in Golden, CO. Patented designs you can trust.
Support that picks up
Spec files, install videos, training, and a real person on the phone. Bulk and wholesale pricing available.
Our products
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Furnace & A/C Ducting
Classic Return Air Box
The core of a fast, serviceable furnace install.
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Coil Spacers
CT1424 Coil Transition
Lower static pressure, longer equipment life.
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Furnace & A/C Ducting
Side Air Filter Box
Side-return filtration that fits tight mechanical spaces.
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Custom Manufacturing
Custom Fiber Laser Cutting
Precision laser cutting on a Mazak fiber laser.
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Custom Manufacturing
Custom Signs
Draw from scratch or import your designs.
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Custom Manufacturing
High-Volume Production
High-volume parts — days, not weeks.
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Construction Products
Golden Beam Pockets
Cast-in-place adjustable beam pockets — no welding, no shims.
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Roof Pipe Supports
Adjust-A-Stand
Adjustable rooftop pipe supports for flat commercial roofs.
Learn more →Ready to spec your next job?
Get a quote, request spec files, or talk through an install with someone who knows the products. Bulk and contractor pricing available.