What to consider when calculating
The first and main factors will be the size of the room and its temperature characteristics. Without an assessment of real heat losses, it will be impossible to perform an accurate calculation. Therefore, be sure to take into account the following features:
- the material from which the walls are built;
- number, size of windows and type of glazing;
- temperature conditions on the street;
- the presence or absence of heating on the floor below.
Also, the required power of the system will depend on the finish of the floor. After all, different materials (for example, tiles and wood) have different heat conductivity, and the temperature of the floor surface should remain around 30 degrees.
Heated floor in a wooden house
Only when all these factors are taken into account and adjustments are made for each of them, it is possible to make a qualitative calculation of a warm water floor. Only specialists can make accurate calculations and draw up a detailed project. But in order to have an initial idea of the amount of material and the amount of work, you can use the online calculator for a warm water floor, located below. Plus, it does not hurt to get acquainted with the general logic of the calculation and installation of such a system.
What should be the length of the contour of the water floor heating
These parameters must be calculated based on the diameter and material from which the pipes are made. So, for example, for metal-plastic pipes with a diameter of 16 inches, the length of the contour of a water-heated floor should not exceed 100 meters. The optimal length for such a pipe is 75-80 meters.
For pipes made of cross-linked polyethylene with a diameter of 18 mm, the length of the contour on the surface for a warm floor should not exceed 120 meters. In practice, this length is 90-100 meters.
It is recommended to choose pipes for laying on the floor based on the area of \u200b\u200bthe room. It is worth noting that their durability and quality of work depend on what material the pipes are made of and how they are laid on the surface. The best option would be metal-plastic pipes.
Final part
A warm water floor, or rather its power and other necessary indicators, can be calculated using a special calculator or seek help from a special company that will help make the necessary calculations. This must be done prior to the purchase of major pieces of equipment or materials. To do this, you should first determine whether the system will be only an auxiliary heating device or the main one. Power and possible loads are calculated based on the general characteristics, temperature, humidity and square of the room. The dimensions of the pipes, the step between them and their length will also depend on them.
We determine the power and the list of materials
To calculate the power, several criteria must be taken into account in order to make the right choice in favor of a particular device. First of all, this is the type of the chosen room, its quadrature and the method of heating. It is worth noting that in order to calculate the area correctly, you should use only its useful part, not taking into account furniture and other interior items. As a heater, it is recommended to use extruded polystyrene foam, as it has high rates of solidity and durability.
Styrofoam extruded photo
Waterproofing is laid on top of the insulation. In this case, you can use the usual polyethylene film. To fasten the sheets, you need a damper tape. Reinforcement is a kind of base, which is used to fasten the screed and pipes. You can’t do without special brackets for fixing pipes, so they are indispensable elements of the underfloor heating system.For uniform distribution of the coolant, a distributing collector is used. Plus, it will help you save a lot.
The scheme of laying waterproofing
How not to make a mistake
When using a water-heated floor calculator, many make minor, but still errors that will affect the result in any case.
What to expect:
- the calculated part also consists of a chimney, if any;
- for such floors, a pipe is taken, the length of which does not exceed 115 m;
- the calculation calculator includes indicators of the distance between the device and the wall (15 cm);
- if the layout method was used, in which the heating of several rooms will be carried out by a single system, then the length of the circuit should not be different (the existing difference is not more than 15 m);
- the temperature in the room will depend on the distance between the branches, as well as on the region of its use.
What is taken into account in the calculations
When carrying out calculations, including the power of a warm device, it is necessary to take into account the following points:
- The type of flooring used.
- Location and type of generator.
- Where will the collectors be installed?
- What type of double-glazed windows will be installed, and what dimensions will it have.
- Type and design of external walls.
- Existing floor plan.
The calculation of the cost, as well as the calculation of power, is carried out separately from the calculation of heat losses. To do this, take the total quadrature of the room, the average temperature during the winter, the level of ventilation and humidity. You should also take into account additional sources of heating that are installed in the room. Based on the data obtained, the pipes are calculated, after which the marking of the device passage pattern on the floor surface is applied.
