Samogrejna ekološka kuća / Self-Heating Eco-House - Veljko Milkovic

Uploaded by Ulianot on 14.01.2008

in order to capture as much solar radiation as possible
during winter period, but in fact it is quite shallow,
it's only 4.5m in the ground.
Because of its narrowness, so to say,
and its elongation, a central entrance was made
and the house is divided into left and right part.
So both rooms on the left and on the right
can be entered from the central part.
The access to the floor, where a bathroom,
a bedroom and a children's room are,
is also through the central part.
On the left side, there is a kitchen with a dining room,
and on the right a big living room.
These annexes on the side are two ateliers
and they aren't basic part of the self-heating object.
It is obvious because they are a bit protruding
and they are different.
They can be used in different ways.
The one on the left is a workshop
and the one on the right was supposed to be a garage
but because it is expensive this was made to be,
adapted into an additional room, a kind of atelier.
Here, a slight sloping of the terrain was used,
which can be seen on the cross-section of slopes,
on these white walls in rose bushes.
So, it is dug in 1 - 1.20m,
but the slope of the terrain was used as well,
so it had to be leveled for another meter.
It is dug in 2m in relation to the back side.
The basic things, in periods when heating is needed, are reflecting surfaces.
Up to 80% of necessary thermal energy
is solar energy which enters directly through the window
and it is helped (amplified) by these reflecting foils.
This is similar to magnifying glass.
Heating is provided in three ways.
The basic concept is saving as much as possible
and dissipating as little as possible.
That is what the soil layer, which practically
provides almost 80% of protection, serves for.
An additional 10-15% is provided by basic thermal isolation,
which almost every modern house has, good styropor isolation.
And of course it is protected by its position and orientation.
This is all related to protection.
The orientation towards the South makes a difference,
it protects from the winds;
there are no windows on the other side,
which would give away the heat or cause a draft
or other energy losses on the north side, on other radiations.
All the windows strictly face the south
and the entire orientation of the house is towards the south.
Mr. Aleksandar Nikolic, the owner of the house: The other concept is heating, that is, additional heating.
The Sun is the basic source of energy
- when it is sunny of course.
This is the basic thing.
According to the measurements and calculations
I have done until now,
there is approximately 60% of the insolation
or number of hours with sunlight
during the heating period, when it is needed.
The heating season for this kind of a house
is November, December, January, February,
and until the middle of March.
During 20-30% of this period,
usually when it is cloudy or foggy,
there is not enough sunlight,
which is a big problem so additional heating must be used.
I used electricity while it was cheap,
but now I have switched to gas.
The additional heating is, according to calculations,
20 - 30 % in comparison to classical house.
So, if 100% of heating is used for a classical house,
in this case only 30% is used for additional heating
and 70% is provided by the Sun.
But, on the whole, there is a drastic cut of heating costs
due to minimized heat loss provided by layer of soil.
Hydro isolation is triple, we might say.
The basic thing is hydro-isolation concrete.
Of course there are fissures, connections,
details in armature through which the water could pass.
There is also a foil system,
a drainage system and, of course a soil layer,
a lawn, that holds everything together.
Grass layer on the top is extremely important,
not only as a lawn which looks good,
for the looks isn't important
and moreover it cannot really be seen by anyone.
You have to keep the constancy
and coexistence of the soil.
First, during the summer you cannot allow it to dry up
or to lose the grass.
It has to be maintained, watered and mowed.
And this grass layer will turn out to be very useful
during autumn and winter, when it starts raining and snowing,
because it will keep the warmth,
similarly to the effect of fur,
and it will prevent the soil from being washed away by heavy rains.
It is quite inconvenient to advise anyone these days.
A man has to find himself
and to see if he would like to have something like this.
Mine is to show that it is possible, feasible.
You can see for yourself,
it is a house like any other,
but, I can brag a bit, far better and far more comfortable.
When the heating season starts
and when everyone starts taking their wallets out of their pockets,
I save up for my summer and winter holidays
with this kind of heating.
So you can see for yourself how profitable it is.
Of course each house has its advantages and disadvantages.
You have to be prepared to work on it a lot.
Self-Heating Eco-House Concept by Veljko Milkovic