I'll join in here.
We have been living since March '16 in our own semi-detached house from 1972.
Heated area (ground floor/upper floor/attic) approx. 135 sqm.
Fully basemented (not heated).
Triple-glazed windows with 0.8* insulation value have recently been installed.
Roof was insulated and re-roofed in '09.
An 8KW wood stove is located in the living area (ground floor) - living room/dining room/kitchen are one room!
Front door with at least the same insulation value as the windows will be replaced soon.
Heating/hot water, apart from the wood stove (heating only) on the ground floor, is provided by the oil boiler located in the basement with the 6000-liter tanks.
The oil boiler is still the original, so over 40 years old... But it still works, just anything but efficient.
So something else has to come, I think it will stay oil since the semi-detached house is not insulated from the outside.
In mid-January this year I had 2000 liters of standard heating oil delivered as the tank indicator showed almost empty or close to empty.
As of 12.08.16, according to the tank indicator, there are still 40 cm left in the 6000-liter tank (4 x 1500 L tanks, welded and visually intact).
I don’t know our consumption yet, but I think the 2000 liters will be almost used up in the first year. (2 adults and 2 children (3 years, 3 weeks)).
What would you advise me regarding heating?
For your information, we live in BW!
Best regards