
T-Energy
Passive 6-chamber system with an 88 mm frame depth. Lowest Uw = 0.57 W/m²K in the PVC class — for passive houses and the NF40 standard.

Passive 6-chamber system with an 88 mm frame depth. Lowest Uw = 0.57 W/m²K in the PVC class — for passive houses and the NF40 standard.
Key features
Ideal for
T-Energy — available options
| Option | Seals | Glazing | Uw [W/m²K] * | Ug [W/m²K] |
|---|---|---|---|---|
| SuperwarmBest | 3 | 3 | 0.57 | 0.4 with warm edge |
| Standard+ | 3 | 3 | 0.64 | 0.5 with warm edge |
| Standard | 3 | 3 | 0.73 | 0.5 |
Specifications — T-Energy
| Parameter | Value |
|---|---|
| Number of chambers | 6 |
| Uw coefficient * | 0.57 W/m²K |
| Ug coefficient | 0.4 W/m²K |
| Acoustic insulation Rw | up to 46 dB |
| Number of seals | 3 |
| Burglary resistance class | RC3 |
| Available colours | 15 colours |
| Certificates | CE, PN-EN 14351-1 |
| Warranty | 5 years |
Available colours
T-Energy available in 15 colours — from classic white to dark wood-effect foils.

The colour swatches and product visualisations shown above do not fully reflect the actual colours or the real material structure — they are intended only as an indicative visual reference of the final result.
T-Energy vs other BUDVAR systems
Each system is designed for different needs — from the economical T-Perfekt to the ultra-energy-efficient T-Energy.
* Uw value obtained according to DIN EN ISO 10077-2 for a single-sash reference window of 1230 × 1480 mm with standard double-chamber glazing and warm edge spacer.
Frequently Asked Questions
Request a free quote
Interested in T-Energy — PVC Windows? Leave your details — we will contact you.