UFH [Compatibility Mode]

7/29/2019 UFH [Compatibility Mode]

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Floor Heating History:

Floor Heating System goes

back more than 2000 years;

ROMAN AGE


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Scene from the 3rd century BC


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2 reasons:


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Ideal Heating Floor Heating Ceiling Heating Radiator HeatingOuter Wall

Radiators HeatingInner Wall


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Heat profile for under floor heating is nearlyeat profile for under floor heating is nearlyideal:

Warm at feet, where blood circulation is poorest.

Temperate at head levels where body temperature ishighest.


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In contrast;n contrast;

Forced air systems & Radiator Systems concentrate heatorced air systems & Radiator Systems, concentrate heatnear the ceiling !!!L i h fl l !!!eaving the floor cool !!!


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ConclusionWe Feel Better With Warm Feet & a Cool Head


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The Result:

Comfort:Experience shows that even temperature

produced by radiant heat allows people toremain comfortable at 3 C lower overallroom tem erature.

Economic Operation:Where naturally, the heat losses & energycosts are cut down.

p


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Other Main Features:

Large Heating Surface:arge Heating Surface:

Which allows circulation of hot water at lowertemperature than in radiator systems.

& guarantees pleasant warmth by means ofmild radiant heat.


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Even heat distribution across the entire floor.

Where the heat is transmitted from all overthe entire space of the floor surface.


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No restriction on the placement of furniture.

Floor Heating gives total freedom to choosethe interior decoration arran ements withoutany restrictions.


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More stable moisture contents:

The air s not dehumidified, thus; leading to


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Enormous heat storage within the floor layers above the pipenetworksThis leads to:

Making periodic ventilation by opening windowsossible without si nificant loss of heatin efficienc .

Creating a self-balanced environment, because moret an 50% o t e eat trans er rom oor s t rougradiation;

, ,

lower the heat transfer would be.


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Less dust movement:ess dust movement:Because of two reasons:

More than 50% of the heat transferred is throughradiation, where in radiation no dust particles move.

The absence of the fans & blowers which eliminates, , .


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Maintenance free safe & long lasting:aintenance free, safe & long lasting:

Espec a y, w en us ng HENCO san w c p pes t atdo not corrode, & are 100% oxygen tight.


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Suitable for any power source & can be adapted with solarpanel energy systems, because of low temperature operation.


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Fuel Economy In Figures

The same physical ease & well being can be obtained in case of floor

heatin with 3C less room tem erature than in the case of radiator

heating.

This corresponds to 3/20 = 15% energy saving.

The radiant heat does not heat the ceiling as much as in radiator or

forced air systems, this means a further fuel saving of about 10%


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Thanks to the low temperature of the floor there are no thermal bridges

to s eak of.

Continuous o eration & entire s ace distributed heatin are also im ortant

factors to save energy;

for these two factors.


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The Result is:

35~40%

more econom c an ra a ors.


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UFH System Components:

HENCO Pipes.

.

Mixin Valves.

Room Temperature Controls.

Advanced Control Systems.


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Under Floor Heating Layers

Sand

Morter & Tiles

ScreedPipes 16 mmIron Mesh 5 mmAluminum Reflector

Foam ConcreteFoam Concrete


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Design Process:

.

Accordingly, we obtainQ/A(watt/m2 )

I f this value exceeds the maximum heat outputobtained from under floor heating,

then we should:

Improve the insulation.

Install an auxiliary System.


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Design Process:

28C - 29C --- Live area inside the room.

31C - 32C --- Surrounding areas and bathrooms.


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Design Process:

,

W/m2K

Accordingly, determine the average water temperature

T for each loo obtained from the curves.

Chose the designT = TS - TR Normally taken as 8C

Where: TS is water supply temperature.

TR

is water return temperature.


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Design Process:

- = a

-T = 8 C

Then:

TR = 40 - 8/2 = 36 C

S


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Design Process:

Head m H2O

The total pressure drop:

P (mbar)

The total flow rate:

m (l/s).

Flow rate m3/hr


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Design Process:

Calculate the total heat load forunder floor heating.

Add other extra loads such as;domestic hot water, other heatingnetworks, swimming pools, etc.

Safety factor should be addeddepending on the boiler efficiency.


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Installation Schemes:

Meander S stem S iral Method

Parallel System, Zig-Zag Method


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Meander System, with no border zone


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Parallel System, with no border zone


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Meander System, with one border zone


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Parallel System, with one border zone


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Meander System, with two border zones


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Meander System, with one border zone

Two loops


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Complete Layout example for under-floor heating.


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Enjoy The feeling of Floor Heating ...

UFH [Compatibility Mode]

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