The house is located in sector 4, Bucharest, in a densely built-up area. The building is placed near an existing building.

This building is an example of a Passive House designed dwelling, located in a congested urban area, a building that complies with all the constraints, both urban and structural and energy compliance.

The building has minimal environmental impact due to its extremely low energy requirements.

This need is covered by the production of renewable energy - 19 photovoltaic panels are located on the 2 terraces of the building.

Thermal envelope

Exterior wall: mineral wool-ROCKWOOL Frontrock HOUSE(0,034) 20cm-25cm
masonry blocks-YTONG A+(0,096) 25cm-30cm
U-value = 0.011 W/(m2K)

Basement floor / floor slab: floor slab 40cm
XPS TOP 70 SF AUSTROTHERM(0,036) 20cm
U-value = 0.126 W/(m2K)

Roof: XPS AUSTROTHERM (0,036) 30cm
concrete slab 17 cm
U-value = 0.114 W/(m2K)

Mechanical systems

Ventilation: ZEHNDER, Q 600 ERV
Centralised ventilation
effective heat recovery efficiency 80%
humidity recovery efficiency 68%

Heating installation: Ground-to-water heat pump -Thermocasa 18 kW for heating, cooling and domestic hot water preparation.
underfloor heating

Domestic hot water: Ground-to-water heat pump-Thermocasa 18 kW
Thermoelectric boiler with two coils, Romstal Vision, 500L, 9kW, energy efficiency class A, heat flux dissipation 1,38 W/K

PHPP values

PE demand (non-renewable Primary Energy): 38 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP

PER demand (renewable Primary Energy): 20 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP

Generation of renewable energy: 99 kWh /(m2a ) based on the projected area

Find more details here.