Calculator of thermomodernization of the building

The calculator calculates the annual estimated reduction in energy consumption, heating costs and reduction of CO2 emission as a result of thermomodernization activities. Please remember that the calculations are only estimates and the calculator is for educational purposes only and should not be used for commercial purposes either in part or entirely ©

Step I

Check the approximate age of the building or the period in which the last deep modernization took place:

The house has not been modernized since at least 1945
The house has not been modernized since at least 1946-1966
The house has not been modernized since at least 1967-1985
The house has not been modernized since at least 1986-2000
The house has not been modernized since at least 2001-2008
The house has not been modernized since 2009-2014

Heated area of the house (including the area of the attic if it is heated)

Is the attic heated? If "yes", please check the box

 

Number of people using the building:

Daily consumption of hot water per person:

Low
Medium
High

Type of heating system in the house:

Old tiled stoves η=0,25
Old fireplace η=0,40
Old coal boiler before 1980 η=0,60
Old coal boiler made around 1980-2000 η=0,65
New coal boiled produced after 2000 η=0,82
Old biomass boiler η=0,70
Modern biomass boiler η=0,85
Fireplace with water jacket η=0,70
Local(in rooms) electric heating η=0,99
Oil boiler η=0,84
Old natural gas boiler η=0,87
Natural gas condensing boiler η=0,94
District heating substation (heating system) η=0,98
Air heat pump, electric power η=3,00
Natural gas heat pump glycol/water η=1,60
Ground heat pump, electric power η=4,00

Type of installation of heating system in the house:

Local(in rooms) electric heating η=0,91
Local(in rooms) electric heating or from old tiled stove or fireplace η=0,70
Water heating medium, radiators, central regulation η=0,77
Water heating medium, radiators, local regulation (thermostatic valves) η=0,93
Water heating medium, floor heating, central regulation η=0,762
Water heating medium, floor heating, local regulation (local control panel) η=0,89

Is there a heat accumulation tank in the building? If "yes", please check the box

ŹSource of hot water preparation in building:

Old natural gas boiler before 1980 (small local boiler) η=0,40
Old natural gas boiler before 2000 η=0,65
Natural gas not condensing boiler η=0,83
Natural gas condensing boiler η=0,85
Local electric heaters η=0,96
Air heat pump, electric power η=2,60
District heating substation (heating system) η=0,98

Type of ventilation system:

Natural ventilation
Machanical ventilation with recuperation efficiency 60%
Machanical ventilation with recuperation efficiency 85%

Step II

Specify what kind of building works will be carried out as part of the modernization of the building:

Automatic selection:


No modernization
Standard modernization
Full modernization "SUPER ECO"

User selection of components:

Check change windows
Undo change windows
Check wall insulation
Undo wall insulation
Check roof insulation
Undo roof insulation
Check insulation unheated attic ceiling
Undo insulation unheated attic ceiling
Check floor insulation
Undo floor insulation
Check change doors
Undo change doors
Check modernization of ventilation system
Undo modernization of ventilation system
Machanical ventilation with recuperation efficiency 60%
Machanical ventilation with recuperation efficiency 85%
Check change the heat source in the house
Undo change the heat source in the house
New coal boiler produced after 2000 η=0,82
Modern biomass boiler η=0,85
Fireplace with water jacket η=0,70
Local electric heating η=0,99
Oil boiler η=0,84
Natural gas condensing boiler η=0,94
District heating substation (heating system) η=0,98
Air heat pump, electric power η=3,00
Natural gas heat pump glycol/water η=1,60
Ground heat pump with horizontal slinky loop η=4,00
Ground heat pump with vertical boreholes η=4,00
Check modernization of installation of heating in building
Undo modernization of installation of heating in building
Water heating medium, radiators, central regulation η=0,77
Water heating medium, radiators, local regulation (thermostatic valves) η=0,93
Water heating medium, floor heating, central regulation η=0,76
Water heating medium, floor heating, local regulation (local control panel) η=0,89
Check change the source of hot water preparation in house
Undo change the source of hot water preparation in house
Natural gas condensing boiler η=0,85
Local electrical heating η=0,96
Air heat pump, electrical power η=2,60
District heating substation (heating system) η=0,98

Unit cost of fuel for home heating before modernization (prices 2021)

Coal K zł/per ton

Unit fuel cost for hot water preparation in house before modernization

Natural gas zł/m3

Unit cost of fuel for home heating after modernization

Coal K zł/per ton

Unit fuel cost for hot water preparation in house after modernization

Natural gas zł/m3

Computational results

Energy consumption difference

Reducing the demand of final energy for heating and hot water preparation

0

GJ per year

Estimated demand of final energy after modernization

167.58

kWh/m2 per year

Estimated demand of final energy before modernization

167.58

kWh/m2 per year

Heating costs difference

Decreasing yearly average costs of heating and hot water preparation

0

zł annually

Estimated costs of heating and hot water preparation after modernization

4457.73

zł annually

Estimated costs of heating and hot water preparation before modernization

4457.73

zł annually

Modernization total cost and reduction of CO2emission

Estimated total cost of modernization (prices 2021)

0

sum in zł

Estimated simple rate of return SPBT

0

years

Yearly average reduction CO2 emission into the atmosphere:

0

ton per year