All about the development of water warm floor with their hands

In this section I will explain all the nuances that occur on the normal practices of the installer.
To make ahead of time You are tired! We will go from simple to complex. In this article, we consider more practical experience. View the graph of. A little count. And who wants to count very accurately, you can visit and meet my personally-developed section of Hydraulics and heat engineering . In this section, more physics and mathematics. So who wants to count all physics processes water and heating, without Hydraulics and heat engineering You can not do.

The temperature of the slab floor, it should not exceed 30 degrees. Generally this is enough. If the mixing unit there is a thermostatic valve with a thermal head, the setting temperature is set by turning the thermal head. Usually up to 60 degrees. Keep in mind that the water temperature in the heat box from the actual plate temperature of a warm floor can vary by 10 – 20 degrees.
The simplest in this problem is a method of laying pipes on the surface of the future floor.
But here, the newcomers-the installers manage to do it right!
So, as for laying of floor heating, I recommend the way of the snail, this snail is the most economical from the standpoint of hydraulic losses. Since with this method, the fluid in the pipe flows with a smaller number of turns, which increases a good flow of fluid in pipes. Also, the floor over the entire area heats evenly.
For example:

To correctly draw-to mark the room you want the number of longitudinal strips even. That is, 8,10,12,14,16 and so on.
For example here are 16 longitudinal and 18 transverse bands (Transverse not affect the status of the thread.).

The floor surface is not rectangular and has a chamfer. In such cases, the chamfer spaced parallel lines with the same step as the cell.
And here’s what happened:

If long pipes exceeds allowable value, the to the surface lay two paths. For example:

If there is an obstacle, it should be avoided by this method:

Important it is possible to make the lengths of the contours are the same.
There is also practical advice, near exterior walls to make the step of laying less than 1.5 times, if the total spacing is not equal to 10mm. As the floor at the outer walls heat faster uses.
Regarding the volume of square?
In my experience I would say that the area can be 6×6 meters. Maybe и10х5 meters. In many places, and write in directories that the area of warm water floor should not exceed 40m2.
But I say it is! If long length exceeds 10 meters, you should divide the floor into parts. As the heated floors when the temperature begins to lengthen.

In place of gender placed damping tape. It is better that the whole circuit was in the range of a warm floor. That is, that the loop did not cross the damping tape.
If You have a large area and need to share it, you should make sure that each part was a separate circuit. A path is laid one pipe branch. That is, it is in fact one pipe that runs a single thread. That is, damping tape should split the threads. Using damping tape should not be many pipes. Where the damping tape – there is a constant change in the distance between the Underfloor heating. And the presence of pipes can harm them.
In places the arrival of the pipes in the heated plate, it is necessary to put in any insulation. This can be thermal insulation energoflex, or corrugated pipe. To place a smoothing of the movement of the plate from the pipe.
The base floor?

Now tell the difference between the ideal Underfloor heating and so-so:
Option so-so:
The subfloor is not flat and has an error of up to 5 cm, That is, where it is normal, and where the 5 cm and 10 cm. The insulation has a thickness of from 2 to 5 mm of concrete Thickness from 5 to 15 cm.
Option so-so refers to low quality work floor. Previously, many did so. Paul for example does not warm uniformly bad. The heat goes to the stove, especially through the thin insulation. Such insulation is permitted in the apartments, and that such insulation is not economical effect on the floor. The heat goes into the bottom bearing floor!

The perfect warm floor!
The subfloor is smooth and has an error up to 3 cm Insulation of 25 mm, it’s usually the foam or polystyrene (With a minimum density of 35kg/m3 for the fortress). Concrete thickness of 5 to 10 cm In the screed must be laid on a metal grid for the floor of the fortress. Metal mesh can play a smoothing effect of heat transfer on the floor. The metal mesh should be laid under the pipe, to enhance you can add a grid on top of the pipe. The edges of the floor need to put damping tape, to compensate for the floor’s expansion.
As for the pipes to warm the floor?
The tube may be substantially made of metal or polyethylene. There is a big question, but what is better PVC or cross-linked polyethylene. Many vendors and artists say that it is better to warm the floor laid a special pipe for floor heating cross-linked polyethylene.

I’m in my own experience I can say that the difference is very small and the efficiency is almost the same. So this much hyped myth about cross-linked polyethylene, besides expensive. I can only say that the higher the internal diameter of the pipe for floor heating, the better. Because Parking is better and the resistance to the flow below. Which improves efficiency of floor heating. As for heat, then no doubt cross-linked polyethylene it above! But is it worth the candle? No! Firstly the difference is very small, and secondly the laws of calculations of heat they allow heat transfer. Is that the speed of heat transfer is sufficient to heat the concrete floor. As the concrete floor does not transfer heat as quickly as we would like. If the concrete floor bore the heat instantly, then the effect would be significant.
You can also use copper pipe and tube stainless corrugated steel. But these tubes are very expensive and the installation of such pipes is very time-consuming. So these pipes fall off definitely!

The code of a warm floor has the following sequence:
1. On a horizontal floor with an accuracy of 3 cm is placed insulation (Polystyrene plate) with the thickness from 2.5 to 10 cm.
2. On the polystyrene plate to lay down a plastic film or foil heat insulation material is laid with a thickness of 5-10mm.
3. Further falls grid from 5-150 mm. wire Thickness 2-4mm.
4. Next, fit the pipe with a certain step.
5. Near the walls on the border to put damping tape.

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