Lowering Costs

Investments in your future (for more than 30 years). They pay off extremely quickly.

Fuel oil prices are continuing to rise unstoppably towards 1-Euro per litre -
the solution: new energy-saving windows!

Replacing old single-glazed windows is not only worthwhile from an ecological standpoint; it is also highly economical. Investment in new windows pays off financially after a short period of time, because with the current fuel oil prices new windows usually pay for themselves after less than 10 to 12 years, as the following calculation examples show. Often, if the window frames are still intact, only the panes need to be replaced. In the case of a single-family house, experienced craftsmen will generally complete this work within one day.

Replacing/ modernisation of window glazing (calculation example of single-family house with 30 m² of window area)
	Before double insulation glass	After UNIGLAS^® \| TOP energy-absorbing glass (triple insulation glass)
U_g value	3.0 W/ (m²K)	0.7 W/ (m²K)
Fuel oil consumption / a	756 litres of fuel oil / a	176 litres of fuel oil / a
CO₂ Emission (only via glazing)	2 tons / a	475 kg / a

Please note: the actual values may differ, depending on the basic structure of the building, climate and individual heating.

Average saving with an annual increase in fuel oil prices of 5%
Years	in ... years	Fuel Oil Price (forecast for the year)	Fuel Oil Saved in Litres	CO₂ Saved in Tons	Fuel Oil Saved in € (rounded off)
2009		0,60
2010	1	0,63	580	1,6	370,-
2011	2	0,67	1.160	3,2	760,-
2012	3	0,71	1.740	4,8	1.180,-
2013	4	0,75	2.320	6,4	1.620,-
2014	5	0,79	2.900	8	2.080,-
2019	10	1,03	5.800	16	4.800,-
2024	15	1,35	8.700	24	8.360,-
2029	20	1,75	11.600	32	12.970,-
2034	25	2,26	14.500	40	18.930,-

How is energy consumption calculated?

“Heating Energy Consumption”

Energy Consumption = 8.4 x A x Ug Litres of Heating Oil/Year

“Waste Emission”

1 Litre of Heating Oil ---------> 2.7 kg CO₂
1 m³ Natural Gas ---------> 1.1 kg CO₂