U.S. patent application number 10/558204 was filed with the patent office on 2007-01-25 for heating system with heat transmission fluid distributed in finished floor boards.
Invention is credited to Adelio Da Rold.
Application Number | 20070017656 10/558204 |
Document ID | / |
Family ID | 33485495 |
Filed Date | 2007-01-25 |
United States Patent
Application |
20070017656 |
Kind Code |
A1 |
Da Rold; Adelio |
January 25, 2007 |
Heating system with heat transmission fluid distributed in finished
floor boards
Abstract
A floor heating system comprising: at least one modular floor
heating element, including a top surface and an opposing bottom
surface linked by a series of longitudinal ducts, the longitudinal
ducts enabling connection with three-point connections and/or
two-point connections for coupling each of the ducts to a delivery
duct and to a backflow duct, respectively, for collecting and
feeding back a heat transmission fluid; a delivery duct for feeding
the transmission fluid; a backflow duct for collecting and feeding
back the transmission fluid; two-point connections for connecting
adjacent ducts; three-point connections for connecting ducts to the
delivery duct or the backflow duct; an alternated application of
three-point connections with at least one two-point connection
which allows the reversal of the direction of the heat transmission
fluid.
Inventors: |
Da Rold; Adelio; (Trichiana,
IT) |
Correspondence
Address: |
Modiano & Associati
Via Meravigli 16
Milano
20123
IT
|
Family ID: |
33485495 |
Appl. No.: |
10/558204 |
Filed: |
May 28, 2004 |
PCT Filed: |
May 28, 2004 |
PCT NO: |
PCT/EP04/05820 |
371 Date: |
November 25, 2005 |
Current U.S.
Class: |
165/48.1 |
Current CPC
Class: |
F24D 3/127 20130101;
Y02B 30/00 20130101; Y02B 30/24 20130101; F24D 3/125 20130101; F24D
3/14 20130101 |
Class at
Publication: |
165/048.1 |
International
Class: |
F25B 29/00 20060101
F25B029/00 |
Foreign Application Data
Date |
Code |
Application Number |
May 30, 2003 |
IT |
BL2003 A 000007 |
Claims
1-21. (canceled)
22. A floor heating system comprising: at least one modular floor
heating element, wherein the modular floor heating element
including a top surface and an opposing bottom surface, the top
surface and the bottom surface being linked by a series of
longitudinal ducts through which a heat transmission fluid,
particularly water, is to be passed, wherein the longitudinal ducts
are adapted for connection with three-point connections and/or
two-point connections for coupling each of the ducts to a delivery
duct and to a backflow duct, respectively, for collecting and
feeding back a transmission fluid; a delivery duct for feeding the
heat transmission fluid; a backflow duct for collecting and feeding
back the transmission fluid; two-point connections for connecting
adjacent ducts of the system; and three-point connections for
connecting ducts to the delivery duct or the backflow duct; further
comprising an alternated application of three-point connections
with at least one two-point connection which allows the reversal of
the direction of the heat transmission fluid between two
neighboring ducts of the same board or of two adjacent boards,
while a subsequent arrangement of three-point connections and
two-point connections gives the possibility of determining the
length of the way the heat transmission fluid has to pass from the
delivery duct to the backflow duct.
23. The heating system of claim 22, wherein each of the three-point
connections comprises a joint having a hole for communicating with
holes of a pair of wings of a three-point connection, the joint
being adapted to be steadily linked to an opening of one of the
ducts of the system.
24. The heating system of claim 22, further comprising sealing
rings.
25. The heating system of claim 23, wherein the hole of the joint
has a lower diameter than the holes of the pair of wings.
26. The heating system of claim 22, further comprising flexible
pipe portions for connecting three-point connections.
27. The heating system of claim 22, wherein the two-point
connection is formed by a male element and a female element which
can be linked together by inserting an end into a corresponding
seat, wherein a distance of joints is identical to a distance
between adjacent ducts of the ducts.
28. The heating system of claim 23, wherein the three-point
connections are linked to each other by means of flexible pipe
portions for forming the delivery duct.
29. The heating system of claim 23, wherein the three-point
connections are linked to each other by means of flexible pipe
portions to form the backflow duct.
30. The heating system of claim 22, wherein the element further
comprises lateral longitudinal edges adapted to be joined with
another system side by side.
31. The heating system of claim 22, wherein the element is made of
a material having a good thermal conductivity.
32. The heating system of claim 22, wherein the element is
manufactured by extrusion.
33. The heating system of claim 22, wherein the ducts respectively
are spaced to each other with an identical distance.
34. The heating system of claim 33, wherein outermost ducts of the
ducts are spaced to lateral edges of the element half the
distance.
35. The heating system of claim 22, wherein the modular element is
adapted to be cut into portions having an individual length.
36. The heating system of claim 22, wherein the top surface is
coupled to a tape or a final floor covering, particularly by
glueing, for providing a finished floor board.
37. The heating system of claim 22, wherein the system has a length
and a height corresponding to the width and height of an ordinary
floor board.
38. The heating system of claim 23, wherein one of the lateral
edges is provided with a projection, wherein the opposite lateral
edge is provided with a corresponding recess such that the
projection and the recess are connectable.
39. The heating system of claim 30, wherein the system is provided
with shoulders for steady and movable linking adjacent systems.
40. The heating system of claim 22, wherein the modular element is
adapted to be laid down on a rough floor, and further comprises an
insulating layer.
41. The heating system of claim 39, wherein the insulating layer is
arranged on the bottom surface, wherein a further covering is
provided between the bottom surface and the insulating layer, and
has sound-dampering characteristics.
42. The heating system of claim 22, wherein the modular element
further comprises middle ribs arranged between the ducts.
Description
[0001] The present invention relates to a heating system,
particularly a floor heating, for flats, offices, shops and any
kind of civil dwelling places or housings, said system being able
to combine the best thermal conductivity and the least bulk of
irradiation surface of the floor, besides assuring the best
uniformity or distribution of heat to areas to be heated with
consequent decrease of the energy consumption due to reduced
temperature required by a heat transmission fluid.
[0002] One feature of the invention is to provide a floor heating
system using an element preferably made of metal which can be
manufactured, for instance, by extrusion, and can be cut
individually, for example, as long as the length of a room to be
heated, the element being put side by side with other elements or
modules of the same kind to reach or cover the whole width of the
room. Therefore, the element is shaped as a floor board having a
connectable side surface and a cross section that provides several
ducts for the heat transmission fluid which are arranged adjacent
to free rooms for structural reduction. An end of each duct is
furthermore connectable, for example, by means of joining tight
rings or sealing rings to linear connections for the linking with
an adjacent duct, or is connectable to "Y"-shaped or three-line
connections, which are able to feed only one duct of each extruded
element and to feed other following identical connections of other
contiguous ducts, so as to distribute the heat transmission fluid
to several batteries of heating modules.
[0003] In comparison to traditional heating systems having
radiators to be fixed to a wall, the floor heating of the present
invention for flats, offices, shops or any other civil housing has
the advantage of eliminating the body of the radiator on the walls
of the room, and further allows decoration of the room without
presence of the radiant elements which are unwanted for aesthetical
reasons.
[0004] The floor heating equipment has also the advantage of a more
uniform distribution of heat, can be further used to cool the room,
and after all provides a heating or heat of a quality which is
surely higher than the one of traditional heating systems having
wall radiators.
[0005] Some techniques for providing floor heating installations
are, anyway, based on the principle of placing one or more coils
directly on a bottom of each room to be heated or on an insulating
layer which lays on the bottom, such coils being connected to a
delivery duct and back-flow collector or duct which are
respectively linked to a boiler.
[0006] The different known floor heating systems then require the
application of a sand layer or other insulating and filling
materials having the thickness of the coil, the application of a
layer of cement, mortar or other materials stiff enough to allow
support of floor tiles, parquet, moquette or other final coverings
of the floor.
[0007] As a matter of fact, the presence of a stiff and solid layer
of material for supporting and fixing the finished floor, in
junction with the thickness of the tile itself or of other
coverings determines the formation of a layer that can be between
8-10 cm of material that opposes heat transmission of the below
coil of any topical floor installation.
[0008] This disadvantage constitutes the main reason for limited
(heat) diffusion of the floor heating system, since before having
the room heated, a certain time for the heating of the thick layer
placed over the coil is required, since it forms a barrier against
heat propagation.
[0009] An improvement of this known floor heating technique has
been suggested in patent WO 88/07158, FIG. 5 of which provides an
embodiment of a flat modular plate with seats for the housing of
ducts for the thermal heat transmission fluid, the upper surface of
which can be covered by a finished floor, thereby spreading
immediately the absorbed heat without excessive thicknesses that
delay the thermal efficiency.
[0010] The same patent WO 88/07158 suggests a valid solution of
another great inconvenience of the prevailing technique for floor
heating which is represented by the long rest times required by
concrete of the floor before laying the traditional heating
installation. Since said patent suggests an independent laying of
the radiant plate directly on the rough state floor, time can be
saved during the stage of delivery and use of the dwelling
place.
[0011] Unfortunately, with the embodiment of the radiant plate
proposed in the above-mentioned patent it is difficult to carry out
the covering of ordinary floors with respect to both the difficulty
in providing bulky radiant surfaces and the difficulty in placing
effectively and/or efficiently the ducts for the heat transmission
fluid, and finally since said patent suggests several generic uses,
without presenting any real solution that can be used for the
application in floor heating systems.
[0012] Another drawback of all the topical floor heating systems is
given by the large quantity of water which is to be heated and
required to feed each coil, not to mention the fact that in order
to affect the room temperature the same large quantity of water has
to be heated to at least 35-40.degree. with a great energy
consumption to achieve a thermal range also after switching off the
system.
[0013] A further disadvantage of conventional floor heating systems
is given by the problem of their maintenance, particularly with
respect to the fact that whole floors have to be re-made in case of
breakdown or occlusion of the coil.
[0014] It is an object of the present invention to allow
transmission of heat from the floor immediately and instantaneously
like the heat provided by conventional radiators, wherein the
advantage of a distribution from the floor and the advantage of
enabling the use of large amounts of water in the installation with
a minimal increase of temperature is maintained with respect to the
temperature that is wished to be achieved in the room, its
transmission to the room being immediate.
[0015] It is another object of the present invention to provide a
floor heating system, which is directly in contact with the room to
be heated, and can determine an immediate transmission of its heat
to the room, also after an improvement of its circuit for the
delivery of the thermal heat transmission fluid.
[0016] Still another object of the present invention is to achieve
a prompt and sufficient heating of the room even at minimal
difference between the temperature of the heat transmission fluid
and the desired room temperature, thus achieving great reduction of
energy consumption for a reduced heating of big amounts of water
circulating in the installation.
[0017] It is still another object of the present invention to
achieve the temperature of the heat transmission fluid also using
alternative energy sources, like solar panels.
[0018] Further object of the present invention is to assure a best
possible uniformity of the temperature in all the rooms or single
areas to be heated, presenting the most versatility in installation
and use.
[0019] Another object of the present invention is to assure best
condition for installation and maintenance of the system, the
system being formed of few, simple, fast, and interchangeable
constructive elements.
[0020] Last but not least object of the present invention is to
provide a floor heating system that does not negatively affect the
height of the room, and being substantially as thick as a
conventional floor board.
[0021] These and other objects of the present invention are
perfectly achieved by the present invention, as it can be
understood from the following description of embodiments given by
way of example only and being not intended limiting, illustrated
also with reference to 10 schematic figures, in which:
[0022] FIG. 1 represents a perspective partial view of a portion of
a modular metallic floor heating element according to the present
invention, which is manufactured, for example by extrusion and
already finished for application as floor covering, and is further
provided with four ducts for the passage of a heat transmission
fluid;
[0023] FIG. 2 represents a perspective view of a pair of modular
elements of FIG. 1 that can be connected to each other to form part
of a surface of a radiant floor;
[0024] FIG. 3 represents a front view of a three-point connection
intended for heat transmission fluid delivery connections from a
net to, at least, some of the ducts of the modular elements of
FIGS. 1 and 2, as well as to other ducts of these modular elements
for backflow to the net;
[0025] FIG. 4 represents a top view of the connection of FIG. 3
according to one of its ideal axial sections;
[0026] FIG. 5 represents a side view of the connection of FIG.
3;
[0027] FIG. 6 represents an axial sectional view of a male portion
of a linear connection for linking a pair of ducts of the modular
elements of FIG. 1 being adjacent to each other in order to achieve
an inversion (of flow) of the heat transmission fluid between these
adjacent ducts;
[0028] FIG. 7 represents an axial sectional view of a female
portion that can be linked to the male portion of the connection of
FIG. 6;
[0029] FIG. 8 represents a top view of several modular elements of
FIG. 1 coupled to each other side-by-side and linked to form a
portion of a finished floor of a corresponding room to be heated,
they being represented with an adjacent series of joints for the
delivery of the heat transmission fluid coming or entering into
each element, and joints for the collection of the fluid coming out
from the modular elements, after having circulated in the other
ducts of each module under passage in the provided linear
connections of FIGS. 6 and 7 placed at an opening of each duct
which is not already engaged with one of the three-point
connections of FIGS. 3 to 5;
[0030] FIG. 9 represents a vertical sectional view of a
longitudinal intersection between walls and a floor of a room into
which the delivery and backflow system for the heat transmission
fluid of FIG. 8 is applied;
[0031] FIG. 10 represents a first constructive variation of the
system illustrated in FIG. 8.
[0032] In all figures same elements are represented or are to be
understood as being represented by the same reference numbers.
[0033] According to the embodiments illustrated in the attached
drawings, a modular metallic element 1, preferably made of aluminum
alloy or of any other material that combines lightness, steadiness
and good thermal conductivity, is accomplished, for example by
extrusion in order to have two flat opposite surfaces 10 and 11
linked by a series of four cylindrical ducts 12, 13, 14, and 15
having the same distance one to the other and with the outer ducts
12 and 15 being spaced apart from edges 16 and 17 by half of the
distance between the ducts 12, 13, 14, and 15.
[0034] According to the proposed embodiment, the two flat surfaces
10 and 11 are linked to each other by the thickness of the ducts
12, 13, 14, and 15 as well as by a series of middle ribs 18, 19,
and 20 for forming together with the lateral edges or sides 16 and
17 and said ducts 12, 13, 14, and 15, respectively, the empty and
clear openings 21, 22, 23, 24, 25, 26, 27, and 28.
[0035] The modular stiff element 1, as already mentioned, can
advantageously be accomplished by extrusion, and then can be cut
into portions of fixed or particular sizes in order to be able to
be laid down as a floor covering any room having an standard
length.
[0036] To the upper surfaces 10 of the modular element 1 a tape 2
or a final floor covering is glued or fixed in an arbitrary manner
in order to provide the element 1 also with the aspect or
appearance and function of a finished floor board.
[0037] The modular element 1 further comprises a male side rib 30
and female rib 31, respectively, provided in order to be able to
connect the different elements 1 placed side-by-side to cover the
whole width of the room and to avoid their uncoupling or any
possible movement.
[0038] According to one exemplary but not limiting embodiment, the
modular element 1 can have a length L of about 180-200 mm, while
its overall height can be of about 15-16 mm, that can reach
together with the final covering 2 a thickness H of about 20 mm,
that means said modular element 1 can have the same section as that
of a wooden floor board as well as an identical appearance and
function once it has been laid down.
[0039] In FIGS. 3 to 5 an embodiment of a three-point connection 4
is illustrated, said connection 4 comprising a joint 41 with a hole
42 communicating with holes 43 and 44 of two wings 45 and 46.
[0040] Said wings 45 and 46 diverge with respect to an axis of the
joint 41 by an angle a of about 1000-1500 and their respective
holes 43 and 44 have a bigger diameter in comparison to the hole 42
of the orthogonal duct 41.
[0041] In FIGS. 6 and 7 a possible shape of a linear connection 5,
alternative and complementary to the connection 4, is illustrated
with respect to the connections of the ducts 12 to 15 of each
element 1 or of more elements 1 arranged side by side.
[0042] A male angular element 51 is linked to a female angular
element 56 such that their respective free ends 52 and 57 can be
inserted into two adjacent ducts 12 to 15 of one or more elements 1
arranged side by side.
[0043] An opposite end 53 of the male angular element 51 is housed
and inserted into a hollow or boring 59 of an opposite end 58 of
the female angular element 56 after having placed between them
proper tight rings or sealings or other kinds of sealings that can
be also incorporated.
[0044] Also the stability and sealing of the connection 41 with the
ducts 12 to 15 of the element 1 as well as the stability and
sealing of the ends 52 and 57 of the linear connection 5 with the
remaining holes 12 to 15 of the elements 1 is achieved by putting
in between a proper number of elastic sealing rings or other kind
of sealings.
[0045] A better stability can be ensured by fixing every connection
4 or 5 to the respective joining point on the ducts of the modular
element 1 by means of clamps or other known mechanical fixing
systems.
[0046] The present system can be completed by provision of a
traditional pipe 6' (cf. FIG. 8) for the delivery A of a heat
transmission fluid, and provision of a corresponding traditional
pipe 6'' for the backflow B as well as a series of flexible pipe
portions 6a, 6b, 6c, . . . , 6z, 6y, 6x etc. that respectively form
a duct or collector for the delivery and recovery of the heat
transmission fluid, being able to be linked by putting in between
proper sealing rings or seals as well as being closed with elastic
bands or other known and corresponding fixing systems.
[0047] After having so described some of the parts included by the
present system, their clear assembling and their logic function is
illustrated below also with reference to the achievement of the
objects specified above, in particular with reference to attached
FIG. 8, in which the elements 1a, 1b, and 1c are arranged side by
side belonging to a line of elements mentioned to form the entire
length and the entire width of a floor of the room to be
heated.
[0048] In FIG. 8 is shown a first three-point connection 4a being
inserted into the duct 12 of the first element or board 1a, in
order to link the wing 45 of the duct 12 to a net for the delivery
or backflow of the heat transmission fluid.
[0049] The free end 46 of the connection 4a is linked, preferably
with a pipe portion or an elastic connection 6a, to the end 45 of
the subsequent three-point connection 4b which is inserted into the
hole 12 of the adjacent element 1b.
[0050] An outlet of the duct 12 of the element 1a is linked to an
inlet of the contiguous duct 13 by means of a linear connection 5a,
while an outlet of the duct 13 is linked to the adjacent duct 14 by
means of an opposite linear connection 5b.
[0051] An outlet of the duct 15 is so linked to another three-point
connection 4z that, in turn, includes an arm 45 linked to a
backflow collector and the other arm 46 coupled to the adjacent
connection 4y by means of a pipe portion 6z.
[0052] This connection system is clearly repeated in each element
or board 1b, 1c and so on that are linked to the starting element
la, while a final portion 6d can be applied to a wing 46 of a last
delivery connection 4d to be reversed and inserted into a wing 46
of a final backflow connection 4x indicated at 6x, so as a male
elbow or angular element 51 can be housed in the final duct 12 to
15 of the last board 1 of the floor to collect the coming out fluid
and pass it into the backflow duct 6x, while the wing 46 of the
last delivery connection is closed.
[0053] As an effect of these connections, the heat transmission
fluid coming from a boiler by means of the collector gets in
contact with the first connection 4a to feed both the first duct 12
and the pipe portion 6a and the following pipe portions 6b, 6c,
etc., so as to feed every initial ducts 12 of each element 1a, 1b,
1c, etc. at the same time and with the same input temperature.
[0054] Going through the ducts 12, 13, 14 and 15 of each contiguous
element 1a, 1b, 1c, etc., the heat transmission fluid transfers
heat partially to the ducts of boards 1a, 1b, 1c, etc. and needs so
to go back to the boiler to absorb new heat, i.e. to be
reheated.
[0055] As a matter of fact, for example, in the case of the element
1a, the "cooled" fluid coming out the duct 15 is collected by the
connection 4z and is conveyed with the "cooled" fluid already
collected by the other connections 4y, 4x, etc, of the other
elements 1b, 1c, etc., to be forced to leave the arm 45 of such a
connection 4z and join the remaining fluid that, due to the
collector, is pushed towards the heating boiler.
[0056] With particular reference to FIG. 9, a practical laying down
of the installation of FIG. 8 is highlighted, supposing its
application on a floor that separates two different flats or rooms
placed one over the other.
[0057] The modular element 1, finished with its final floor
covering 2 is placed on an insulating layer I, preferentially after
having placed therebetween a sound-dampening covering G, the length
of the element 1 being lightly shorter than the length of the room
V to be heated.
[0058] A three-point connection 4a is applied on the head of the
duct 12 at an end of the element 1, while an opposite flat reversal
connection 5a is applied to the opposite side of this duct 12 of
this board 1 and a further outlet connection 4z is applied to the
following duct 15 of this board 1.
[0059] The presence of the delivery connections 4a, 4b, 4c, etc.
and of the similar backf low connections 4z, 4y, 4x, etc. besides a
minimal room for connecting to the respective flexible delivery
pipes 6a etc. and 6z etc. requires the presence of a pass or space
C1 provided on a base of walls that form the length of the room V,
said longitudinal space being accomplished, for example, by
applying a gypsum cardboard that remains raised from the floor by
some centimeters and has a proper thickness.
[0060] Also the presence of the opposite series of flat connections
5a and 5c require the provision of an opposite pass or space C2
even if it needs a lower depth, its overall dimensions being lower
and being similarly made of gypsum cardboard with a thinner lower
thickness than that of the space C1.
[0061] In both the inlet and outlet sides of the installation, the
room V is anyway regularly closed by the respective skirting boards
S that cover the edges of the panels 1 and link them to the walls
of the room V.
[0062] From FIG. 9 the easiness and immediacy of laying down the
present heating system as well as its easy and cheap maintenance
and can be inferred, since a skirting board S can be temporarily
lifted to reach the connection 4 or 5 to check or replace it
without having to ruin the floor as it happens in all the topical
floor heating systems.
[0063] From the above explanation it is clear that the heat
absorbed by each element or board 1 is immediately transmitted to
the room, since the board 1 is insulated only by a thin layer of
covering or flooring surface 2 that absorbs all the heat received
and spreads it to the room.
[0064] The immediacy of the transmission, from the heating element
1 to the room, linked to the great volume of heat transmission
fluid that characterizes this one as any other kind of floor
heating system, allows to limit the temperature of the fluid by a
temperature lightly higher than that wished in the room, thereby
ensuring a reduction in the energy consumption, besides the
possibility of resorting to solar panels or any other alternative
kind of energy.
[0065] The presence of only one delivery duct and backf low
collector for each board 1, preventing the heat transmission fluid
from running through the whole coil net of a floor, assures the
minimal decrease of temperature and so the uniformity of heating in
every single area of the floor.
[0066] The easy embodiment and assembling of a few elements forming
the described system ensures then the most easy provision,
maintenance and revision of each installation accomplished with
this system, and further allows easy replacement of possible ruined
parts.
[0067] With reference to FIG. 10, one possible version among the
many versions possible with the present system is described.
[0068] According to this embodiment, a floor element 1a is provided
with ducts 12, 13, 14, and 15, but, for example, in case of a
longer course to be run by the heat transmission fluid, the same
fluid is forced to go back to its backflow duct B after only three
ducts 12, 13, and 14 have been passed, while a second delivery
connection 4b is applied to an inlet of the duct 15 of the panel
1a, in order to feed then the duct 12 of the following panel 1b and
so on, to feed connections 4a, 4b, 4c etc. a series of three ducts
for each backflow B with the respective ducts 4z, 4y, 4x, etc, as
well as middle flat connections 5a and 5b and final reversal
connections 51.
[0069] This arrangement with an odd number of ducts gives also the
advantage of placing the delivery duct A on a head wall and the
backf low B on the opposite back wall that form the length of the
room V to be heated adjusting the depth of the respective passes C1
and C2.
[0070] Of course it is possible in both illustrated solutions that
the heat transmission fluid runs through a longer course than that
relative to the ducts of each element or board 1, joining, for
example at the outlet of the duct 15 of FIG. 8 a further linear
connection 5 that links it to the following duct 12 of the
following panel 1b to postpone the application of the backflow
connection 4z onto a following duct of the second or other floor
element 1.
[0071] Then, it is also possible to skip the heat feeding of one or
more ducts or one or more boards 1, joining the outlets and the
inlets of the last delivery connections 4c and backflow connections
4x directly with the fist connections 4a and 4z of the following
area to be heated, or linking them to a pair of male elbows 5
linked to each other by means of a proper flexible pipe.
[0072] It is also possible to provide the panels or boards 1 with a
different number of ducts, thus it is possible that the delivery
and backflow connections 4 at the back of the feeding position of
the installation are replaced with simple male elements 51 that can
be linked to each other for the backflow through a last duct of the
last panel 1 to be placed or also through a flexible duct linking
them.
[0073] The floor heating system till now described, like any other
topical floor heating system, is also intended to be used as a
perfect cooling system for the room, simply by replacing the hot
water with a proper cooling fluid, so as in the heating system any
other possible use of hot water or any other fluid transmitting the
temperature to be spread into the room is possible.
[0074] Finally, the floor heating system according to the present
invention till now described can be subjected to several changes
and adjustments for every requirement and solution without
departing from the scope of the invention as defined by the
appended claims.
[0075] It is disclosed that one feature of this invention is to
provide a board 1 preferably made of metal which can be cut into
portions having the same length as that of the room V, can be put
side by side and joined together to reach the whole width of the
room V, and have the same height H and width L as a floor board. It
is further provided with a series of ducts 12, 13, 14 and 15 that
can be linked to delivery connections 4a, 4b, 4c etc. and to
backflow connections 4z, 4y, 4x etc., each of them having a inlet
wing 45 and an outlet wing 46 that form with respective pipe
portions 6a, 6b, 6c etc. and 6z, 6y, 6x the delivery collector or
duct A and the backflow collector B of the circuit for the
transmission of the heat transmission fluid. The fluid passes
through the ducts 12, 13, 14 and 15 of each board 1a, 1b, 1c etc.
thereby transmitting the temperature to the room V.
* * * * *