Check out the most frequently asked questions
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How can I place an order?
Is personal collection possible?
Yes, personal collection is possible, but only goods that have been previously ordered and paid for. After completing the order, we send a text message and an e-mail with information about the possibility of collecting the goods. Warehouse address ul. Graniczna 46, 32-765 Krzeczów.
How can I pay for my order?
You can pay for your order via Przelewy 24 or by traditional transfer. The only form of payment is prepayment. Cash payment is not possible.
How much does transportation cost?
Shipping costs are determined at the time of placing the order in the basket. The amount of costs depends on the size and weight of the shipment.
Can I change my personal account to a business account?
Yes you can. After logging in to your account, go to the business account tab, click “Change account to business” and complete the registration form.
Where can I find the nearest installer?
Our website peflex.eu/mapa-instalatorow lists companies that install heat recovery systems.
Will I be informed about shipping?
Yes, on the day of shipment, when the goods are completed, you will receive a text message and an e-mail with the consignment note number and the date for which the delivery was scheduled.
What is the difference between PE-FLEX STANDARD and PE-FLEX SPECTRA 1000 cable?
The main difference is the biocidal effectiveness of the inner layer of the cable in terms of protection against fungi and bacteria – STANDARD – up to 60%, SPECTRA 1000 – up to 98%.
Intake/exhaust grille - why is there no mesh in the grates or is there a mesh with large holes?
Dirt settles on the fine mesh, blocking the air flow. Contaminants from the outside will be caught on the filters, which are easy to clean/replace. Cleaning the net at high altitudes is difficult and expensive. Another important feature of the air intake/exhaust grill is the “drip or drip” to protect the wall against dirt streaks.
Does the EPS on the intake and exhaust pipes need to be additionally insulated? if so, what?
- EPS in the attic where the temperature is below zero
- EPS in the boiler room where it is +21 degrees
How does BOX-MAKER work?
The operation of BOX-MAKER is described at the website address below, www.cennik24.pl/boxmaker
What needs to be prepared at the place of installation of the recuperator?
What diameter should the intake and exhaust be?
The intake and exhaust pipes should be at least 1-2 diameter larger than the pipe leaving the recuperator. This means that in the case of a recuperator pipe with a diameter of 200, the intake and exhaust pipes should be of diameter 250 or 315.
What thickness of Styrofoam should be planned on the ceiling or the amount of space in the suspended ceiling?
The recommended amount of space on the ceiling for the installation is 10 cm for pipes diameter 75, if the installation is in a suspended ceiling, min. the free space is 10 cm for the GK frame to fit pipes diameter 75.
What diameter should the holes in the ceiling be for fi125 diffusers?
If we are about to pour the ceiling, in order to avoid drilling later, sewage pipes with an external diameter of fi160 can be used at an early stage in the positions of the diffusers.
What diameter should the holes for diffusers and distribution box stubs be made in the existing ceiling?
If we already have a ceiling, drill holes with a hole saw with a diameter of 132 mm for diffusers fi 125. In the case of connection stubs fi200, the hole in the ceiling should preferably be fi250mm. For connectors fi160mm, it is best to make a hole with a diameter fi200.
What is the difference between a muff plenum box and a nipple plenum box?
The boxes differ in the diameter of the connection pipe. The socket box is designed for direct connection of the anemostat, it is available in diameters 100, 125, 160, while the nipple box is intended for an extension that overlaps the nipple and is available in diameters 98, 123, 158
How to plan a place for a recuperator?
In order not to create additional resistance to the recuperator, it is necessary to carefully plan the space for the pipes for the intake and exhaust, min. 30 cm straight section, for exhaust and air supply min. 50 cm straight section.
The floorboard studs have punctured the ventilation ducts - what to do in such a case?
If the damage is significant, it is best to cut out the damaged piece and insert new, undamaged sections using connectors dedicated to ventilation ducts. Most often, however, the damage is minor and when the loops are laid out, it is difficult to reach the cables in a convenient way – you need to pull out the pins, when you pull them out, the damaged material will partially return to its initial position and the resulting hole can be secured with thick polymer glue and ASTAT mounting tape. Be careful not to let glue or other sealant get inside the duct and restrict the air flow.
What size holes should I prepare in the ceiling?
The size of the opening in the ceiling depends on the diameter of the plenum and distribution box stub. The prepared project selects and describes the diameters of the connectors that should be used. It is safe to make a hole 1-2 cm larger than the pipe diameter.
Recommended soundproofing of the air handling unit?
To make the installation quiet – we recommend silencing the recuperator by installing a Pe-flex premium i or SC flexible duct with a length of min. 2-3 meters
Recommended distance of diffusers from walls/windows?
We recommend installing diffusers 0.6-1 meter from walls/windows.
What length should diameter 75 pipes be?
min. the length of the fi 75 pipe is 4 meters, the maximum length is 12 meters – The most important thing is that there are not too short sections for rooms where we have a low demand for air – e.g. for a wardrobe, pantry (the sections should be artificially extended to increase resistance), and as If we have e.g. 14-16 meters to the anemostat and this is a strategic point in the room, we need to add e.g. 1 pipe to overcome the resistances that occur in the installation.
How can I order a project?
You can place an order directly in our online store at www.cennik24.pl.
Where to send documents to complete the project?
Please send the documents to the following address: projekt@peflex.pl
What is needed to prepare a ventilation project?
After purchasing the project, please send the following:
1. Plans of all floors of the building along with any changes to the design.
2. Sections A-A and B-B.
3. Projection of the roof truss.
4. Completed form with questions about the project.
Please send files in DWG, JPG or PDF format. The maximum size of attachments is 25 MB.
What does a prepared ventilation project include?
The project includes a technical description, drawings presenting the concept of installation distribution and the cost of materials.
I would like to order a project from you. What is the waiting time for the project to be completed?
The project completion time is usually approximately 7 business days.
Current information about execution time is available on our price list: cennik24.pl. After placing the order, the designer informs about the deadline for preparing the project.
Express designs are also available with a completion time of up to 2 business days.
I received a project. How can I place an order for the quoted material now?
Together with the project, you will receive an e-mail with a link to the completed basket on the store’s website cennik24.pl. Thanks to this, you will be able to install mechanical ventilation in your home yourself!
Do you carry out ventilation projects based on a system other than PE-FLEX®?
Our offer includes only mechanical ventilation design based on the PE-FLEX® system.
Are there designs for commercial premises available?
Projects that have been agreed with fire, sanitary and occupational health and safety services (e.g. for service buildings) are not available in our company.
Can I include such a project in the building permit documents?
Of course! Welcome to the website cennik24.pl, where you can order projekt z pieczątką in construction proceedings.
