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Under-Floor-
Heating with/out D.H.W

Underfloor heating device with or without bathroom water heating system:

This system relies on creating a network of PEX-aluminum-PEX pipes under the floors, and the lengths of the pipes in each room are variable according to the required thermal loads.
The pipes run on hot water at a temperature of (40°-45°) and the temperature of each room is controlled by a thermostat.
This system is characterized by a balanced and equal distribution of heat over the entire surface of the floors, and the heating is felt without noticing places of radiation or without occupying spaces on the walls. It is very effective in places with high ceilings (Valsir).

- Also, one of its advantages is that it is effective with all types of finishes (marble - granite - ceramic - natural wood).
- Heating pipes are supplied with hot water (at a temperature of 40°-45°) via a central boiler (wall or floor).
- The lowest temperature for the boiler is (55°) and what we need for floor heating is (40°-45°).

Therefore, it is very necessary (according to European standards) to use a primary circuit and a second circuit with an additional pump (with or without a thermostatic mixing valve), and this is explained. With the attached drawings

The heating system can supply the bathrooms of the house with hot water from the same boiler in two ways:
1- Using a Kombi boiler, you heat the water when you open any mixer in the house. It is recommended to use it in apartments and penthouses due to its limited ability to heat water. The highest capacity supplies two bathrooms with hot water at the same time, with a water volume of 16 liters per minute / t = 30 Δ
2- Using a wall-hung or floor-standing boiler with a hot water tank of Storage of 200 liters per liter and 2000 or 3000 liters of large villas. This system is used in

Under-Floor Heating
with Kombi system

1- Kombi Boiler
2- Filling Valve
3- Under-Floor Manifolds
4- Actuator
5- U.F Loops
6- Thermostat
7- Three-Way mixing Valve
8- U.F Pump
9- Filling Valve

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Under-Floor Heating
with D.H.W

1- Boiler
2- Tank
3- Under-Floor Manifolds
4- Actuator
5- U.F Loops
6- Thermostat
7- Three-Way mixing Valve
8- U.F pump
9- Filling Valve

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