Comprehensive thermal modernization involves not only big changes, but also a lot of cash from the Clean Air Program. Check out another implementation.
At Mr. Tadeusz’s house in Nowa Sarzyna, the Energy Project carried out another construction revolution. This time the focus was on comprehensive thermal modernization of the house. The tasks before us included insulating the house, replacing window and door frames, installing photovoltaics and replacing the inefficient heat source.
Insulation
The usable area of Mr. Tadeusz’s house is 85 m2. The building was erected on 26 cm thick foam blocks. The total measurement of the walls to be insulated was 172 m2.
White polystyrene EPS S-033 Ecoline Fasada Plus, 17 cm thick, was used. The whole was covered with light-colored plaster. External PVC window sills of 25 and 30 cm in width were also installed.
Insulating the building cost PLN 45,000.
Heat Pump
After dismantling the previous boiler, a Panasonic WH-UD07JE5 heat pump was installed with a capacity for A&/W35 of 7kW and a three-year manufacturer’s warranty.
A 250-liter DHW tank, a 100-liter buffer, a dirt separator and an Internet module were also used.
The cost of this investment was PLN 53,000.
Photovoltaics
Photovoltaic modules were placed on the roof covered with trapezoidal metal sheets According to the expected consumption of electricity during the year, 9 Jinko Solar panels were installed with a manufacturer’s warranty for 15 years. This amount allows for an installation capacity of 3.42 kWp.
A FoxEss 3.4kW inverter with a twelve-year manufacturer’s warranty was hooked up to the installation.
The photovoltaic installation cost PLN 16,800.
Window and door joinery
The windows in Mr. Tadeusz’s house were also replaced. A total of 6 UR windows were installed. 3 pieces of 145 x 150 cm UR/R with fixed mullion, 1 UR/R window with fixed mullion of 145 x 115 cm, one UR of 87 x 57 cm and one UR window of 64 x 57 cm. All windows are from the manufacturer Komsta and are triple-glazed.
Delta Type 685 left-hand interior door of 215 x 100 cm in dark walnut color and Vera Inox Standard glazing was installed.
The cost of window and door carpentry amounted to PLN 22,000.
Funding
The Energy Project helped with the documentation that had to be submitted to the Clean Air Program in order to obtain the grant. In this way, Mr. Tadeusz gained a grant of up to PLN 136,200, including an advance payment of PLN 67,637, according to the application.
Before and After
Thanks to the insulation, the heat transfer coefficients of the exterior walls have decreased from 0.73 W/m2k to 0.17 W/m2k.
The calculated thermal power of the heating system before thermal upgrading was 7.04 kW, after 3.47 kW.
Annual calculated energy consumption for heating the building: 111 GJ/year dropped to 9.50GJ/year!
