Building Insulation (walls, roof, floor): thermal conductivity (lambda, λ)
- Styrofoam (EPS): ≤0,040 W/mK
- Styrofoam (XPS): ≤0,032 W/mK
- Fiberglass insulation: ≤0,040 W/mK
- Rockwool insulation: ≤0,040 W/mK
- Others: ≤0,040 W/mK
Windows: thermal transmittance (U-value)
- Double-glazing type window: ≤1,6 W/m2K
Biomass stoves/boilers (thermal efficiency)
- Biomass stoves/boilers including fuel supply and control system): thermal nominal (certified) efficiency ≥ 80 %
- Efficiency class of hot water storage tank C
Heat pumps (electricity driven): COP certified
- Air to Water heat pump: ≥3.8
- Air to Air heat pump (Split unit): ≥3.8
- Water to water ≥4.0
Solar thermal water heaters: thermal efficiency, certified
- Solar collectors vacuum pipe type including control system thermal efficiency ≥75%
- Hot water storage tanks C
Lighting: luminous efficacy, certified
- LED lighting ≥ 80 lumens/Watt