A step-change in building performance, backed by data.
R-18 performance
Delivers wall-level insulation in a profile 2X to 3X thinner than double pane glass.
OITC 32 sound rating
Engineered for quiet, Enthermal reduces outdoor street noise by up to 32 db.
3-10 year payback
Glass-only retrofits deliver a 3X to 5X faster payback and double-digit ROI.
Design flexibility
Maximizes daylighting while meeting building envelope energy codes.
20-year warranty
Exceeding industry durability standards, Enthermal is backed by a 20-year limited warranty.
Industry Certified
Certified by IGCC/IGMA and SGCC, and CE Marked under EU CPR.
Customize Enthermal™ to fit your project
Compare technologiesEnthermal™
Ideal for retrofits and new builds alike, Enthermal™ delivers R-18 insulation performance in a profile thinner than double-pane, transforming windows into walls of true comfort.
Choose a tint
None
Light Blue
Light Gray
Light Green
Bronze
Gray
Blue
Green
Tints are available in light green, light blue, light gray, bronze, green, blue, and gray.
Maximum: 60” x 96”, Minimum | 12” x 18”
Cardinal 180, 270, 272, 340, and 366, SB 60 and SB70.
8-mm, 9-mm, 10-mm, 11-mm, or 12-mm
2” × 2”, 2” × 4”, and 4” × 4” array with 5 mm or 6 mm dot or square patterns
Tempered Enthermal Tempered Enthermal with Heat Soak
Choose your Low-E coating.
Choose your effect.

Low-E coatings on the second surface of Enthermal let you fine-tune its thermal performance. Select a Low-E coating to optimize visible light transmission, passive solar design, insulation performance, or elevation-specific conditions.
Explore the table below to see how each Low-E coating product performs.
| Visible Light | Fading | U-Factor | |||||
|---|---|---|---|---|---|---|---|
| Coating | Visible Light Transmittance | Exterior Reflectance | T-UV | T-UV DW ISO | SHGC | U-Factor IP / SI | LSG |
| Cardinal LoĒ-180™ | 78% | 15% | 26% | 61 | 0.62 | 0.084 / 0.48 | 1.25 |
| Cardinal LoDz-270® | 69% | 12% | 13% | 50 | 0.35 | 0.062 / 0.36 | 1.96 |
| Cardinal LoDz-272® | 71% | 11% | 15% | 54 | 0.40 | 0.067 / 0.39 | 1.79 |
| Cardinal Lodz-340® | 38% | 13% | 2% | 27 | 0.16 | 0.055 / 0.32 | 2.42 |
| Cardinal Lodz-366® | 64% | 11% | 5% | 42 | 0.26 | 0.055 / 0.32 | 2.48 |
| Solarban 60® | 72% | 11% | 19% | 54 | 0.38 | 0.063 / 0.36 | 1.89 |
| Solarban 70® | 66% | 13% | 6% | 44 | 0.26 | 0.056 / 0.32 | 2.57 |
Enthermal™
Spandrel
Built on the same Transparent Insulation core as Enthermal™, Enthermal Spandrel replaces bulky shadow boxes with a slim, opaque panel that matches the look and performance of vision glass. It delivers superior thermal efficiency, condensation resistance, and a clean, continuous façade.

Keep the outside, outside
Enthermal™ blocks unwanted heat from the sun and prevents indoor warmth from escaping, keeping buildings comfortable and energy-efficient all year long.

Where numbers add up to comfort
Enthermal™ doesn’t just promise efficiency — it delivers. Independent metrics show better insulation, steadier temperatures, and reduced energy loss.

50% cut in energy use
Cuts energy use up to 50% versus single pane; 35% vs. double pane.
50% noise reduction
Up to 50% noise reduction compared to single-pane glass; 20% vs. double pane.

60% CapEx savings
Up to 60% CapEx savings with LuxWall’s Glass-Only Retrofit, when existing frames are retained.
How Enthermal™ compares
Compare Enthermal Plus™ to double-pane, thin triple-pane, triple-pane, and Enthermal™ windows – on the metrics that really matter.
Enthermal™ maintains optimal indoor temperatures
Keeping spaces warmer in winter and cooler in summer compared to traditional glazing. The result: consistent comfort, reduced HVAC strain, and lower energy bills.

Winter performance
Enthermal™ R-18 Transparent Insulation delivers the warmest interior surface temperatures, preventing cold drafts and discomfort near windows, even in freezing conditions.

Summer performance
Enthermal™ R-18 Transparent Insulation delivers the coolest interior surface temperatures, helping maintain cooler temperatures and reduce cooling energy demand during summer months.
Built for every commercial need.
Whether you’re designing for efficiency, wellness, or cost reduction, LuxWall’s Enthermal™ technologies scale seamlessly across building types.
Education
Short-term upgrade. Long-term energy cost savings.
Healthcare
Ensure stable thermal performance in sensitive environments.
Hospitality
Ultimate guest comfort meets faster ROI.
Mixed-Use
Meet complex tenant needs while saving energy.
Multi-family
Stay ahead of green building requirements and increase property value.
Office
Improve comfort and cut energy costs in offices.
Public sector
Transparent Insulation for deep energy cost savings.
Retail
Transparent Insulation installed with zero disruption.
"By replacing outdated window panes with LuxWall’s Transparent Insulation, which offers an R-value of up to R-18, we eliminated the cold zones that had long existed near our windows. Enthermal performs like a transparent insulated wall, keeping interior spaces consistently warmer throughout the winter months."Ahmed Malik Welcome Law Firm
Results that speak for themselves
Partnering with a property management firm, LuxWall’s Enthermal™ delivered measurable energy savings and acoustic improvements — proving high-performance glazing can drive value without design compromise.
19pt
Increase in Center of Glass R-Value
9°F
Increase in Center of Glass Temperature


Specify LuxWall on your next project.
We’ll partner with you to integrate Enthermal™ technology into any building type, from historic to new construction. Get performance data and specification support tailored to your project.
Common questions
Compare Enthermal™ to single, double, and triple-pane windows—on the metrics that really matter.
A high performance glazing solution that uses a vacuum gap between glass panes to minimize heat transfer, delivering exceptional energy efficiency, noise reduction, and comfort.
Instead of using air or argon gas for insulation, Enthermal™ uses a near-perfect vacuum to dramatically reduce thermal conductance, convection, and radiation, increasing insulating performance.
Enthermal™ is available in 8 mm, 9 mm, 10 mm, 11 mm, and 12 mm thicknesses, using combinations of 4 mm, 5 mm, and 6 mm glass panes.