Lines we carry · Hörmann traditional steel
Hörmann Therma Tech 3400 insulated steel garage door
Thermally broken tongue-and-groove joints on a 1½″ three-layer steel door with a polystyrene core, R-9.0. Windows come in short, long and Slimline styles.
Specifications
| Construction | 3-layer sandwich: steel front, polystyrene core, steel back |
|---|---|
| Thickness | 1½″ |
| R-value | 9.0 |
| U-factor | 0.29 |
| Air infiltration | 1.00 cfm/ft² |
| Joints | Thermally broken tongue-and-groove |
| Section heights | 18″ and 21″ |
| Hinges | 16-gauge |
| Bottom | Safety bottom brackets, aluminum bottom-seal retainer |
| End caps | Painted |
Specifications as published by Hörmann for this model.
Panel designs and colors
Panel designs
- Short Raised
- Long Raised
- Country
- Cottage
- Medley
- Flush
- Microgroove
- Shaker
Colors
- White
- Sandstone
- Almond
- Desert Tan
- Mocha Brown
Tier II
- Teratone
- Hunter Green
- Black
Wood-look (TimberLast)
- Golden Oak
- Medium Oak
- Walnut
- Rosewood
Galaxy Paint is not offered on this model.
Windows
Window styles
- Short
- Long
- Slimline
Glass
- Clear
- Privacy
- Grey
- Bronze
- Obscure
- Glue Chip
- Satin Etch
- Mistlite
Window frames are recessed. Clear glass is standard and insulated glass is available.
Sizes
| Width | 6′ to 18′ |
|---|---|
| Height | 6′ to 14′ |
Manufacturer warranty
Hörmann provides this warranty. The terms below are as Hörmann publishes them for this model.
| Sections | Limited lifetime |
|---|---|
| Hardware | 3 years |
| Springs | 3 years |
How it compares
Therma Tech 3400 and Clima Tech 4400
Same 1½″ thickness, same sizes, different core. The Therma Tech 3400 has a polystyrene core and an R-value of 9.0. The Clima Tech 4400 has an injected polyurethane foam core and an R-value of 15.7.
The 3400 is offered in TimberLast wood-look colors. The 4400 has no wood-grain finishes. Hörmann lists a 3-year hardware warranty on the 3400 and 4 years on the 4400.
| Specification | Therma Tech 3400 | Clima Tech 4400 |
|---|---|---|
| Core | Polystyrene | Polyurethane foam |
| R-value | 9.0 | 15.7 |
| U-factor | 0.29 | 0.209 |
| Air infiltration | 1.00 cfm/ft² | 0.12 cfm/ft² |
| Wood-look colors | TimberLast | None |
| Hardware warranty | 3 years | 4 years |
Ordering through Commonwealth
Open an account to order this door through Commonwealth. If it is not in stock, we order it from the manufacturer; lead time is usually 4–6 weeks, and if a date moves, you hear it from us first. Add a matched opener and rail to the same order. We deliver weekly, or you can pick up at our Colmar, PA dock.
More Hörmann traditional steel
Commonwealth Door Supply is an independent wholesale distributor. Hörmann and the model names on this page are trademarks of their respective owners.