Demawent – a manufacturer of ventilation air intake and exhaust terminals with standard and custom-size options
Poland, 28th Feb 2026 – demawent.pl is the website of DEMAWENT / PPHU DEMA Dariusz Dębski, a manufacturer of ventilation components specializing mainly in wall-mounted and Type B roof-mounted air intake and exhaust terminals. On the website, the company highlights experience since 2000, in-house production, B2B cooperation, and the ability to manufacture non-standard sizes.
Below is another expanded article in the same style, based on information visible on the website, with examples, numbers, and an FAQ section.
What DEMAWENT does and its business profile
On the demawent.pl homepage, the company presents itself as a manufacturer of ventilation components, with a focus on:
- production of standard and custom wall and roof air intake/exhaust terminals,
- B2B projects for installers, developers, industrial plants, and wholesalers,
- technical consulting, production documentation, and installation support,
- a modern machine park and quality control.
The homepage also shows three business areas: production, trade, and services, which suggests the company operates more broadly than just a simple online store.
What is visible in the offer – main products
In the menu and product catalog, two core groups are clearly listed:
- wall air intake / exhaust terminal
- roof air intake / exhaust terminal Type B
This is a very focused specialization. The company concentrates on key terminal elements of ventilation systems rather than a wide, random HVAC assortment. Product descriptions emphasize use in residential buildings as well as commercial, retail, and industrial facilities.
Wall air intake / exhaust terminal – what stands out on the product page
On the wall-product page, DEMAWENT lists several concrete features:
- made of galvanized steel (ready for powder coating),
- new reinforced corner construction,
- louvers mounted at an angle of 41° (+/- 2° tolerance),
- option to produce any size on request.
The company also clearly explains the function of wall intake/exhaust terminals: bringing fresh air into the building and removing used air from it. They also mention protection against rain and contaminants (including shaped louvers and mesh).
Practical example
If a contractor is installing mechanical ventilation in a single-family house and the investor wants the terminal to match the façade visually, a sensible process may look like:
- selecting the dimensions to match the duct,
- choosing the wall-mounted version,
- powder coating to match the façade color,
- consulting mounting location and installation details.
This fits the way DEMAWENT describes technical consulting and custom manufacturing.
Concrete numbers: dimensions and prices for wall terminals
On the wall-product page, there is a visible size and price table (with a note that prices include 23% VAT and apply from 07.01.2026), covering a dimension grid including:
- L length from 300 mm to 1000 mm
- H height from 300 mm to 1000 mm
Example prices from the table:
- 300 × 300 mm – 150 PLN
- 300 × 1000 mm – 330 PLN
- 1000 × 1000 mm – 800 PLN
This is important because the page goes beyond marketing descriptions and provides real dimensional options and price points.
Type B roof air intake / exhaust terminal – use case and example variants
On the Type B product page, the company states that this version is designed for installation:
- on roofs,
- and sometimes directly above ground heat exchangers in heat-recovery ventilation systems.
The product description highlights:
- galvanized steel,
- horizontal louvers protecting against precipitation,
- additional mesh against insects and leaves,
- a lower profile enabling mounting to a roof base or duct.
The page also shows example sizes and prices:
- 200 × 200 mm – 480 PLN
- 250 × 250 mm – 530 PLN
- 400 × 400 mm – 580 PLN
- 500 × 500 mm – 680 PLN
The company additionally declares custom-size production if the standard option does not fit the project.
Practical example
In a residential heat-recovery system, the design may require non-standard fitting of the roof terminal to an existing base or duct. In that case, a manufacturer’s advantage is that the client does not have to compromise with a standard catalog item and can order a size tailored to the installation.
Who DEMAWENT may be especially useful for
The company explicitly mentions B2B cooperation, so the offer appears especially relevant for:
- HVAC / ventilation installers
- developers
- industrial plants
- wholesalers
- and also individual customers looking for specific intake/exhaust terminals with custom-size options
Knowledge base – educational content supporting sales and installation
DEMAWENT also runs a Knowledge Base, where it publishes practical articles related to ventilation and installation. The visible article list includes topics such as:
- types of ventilation in residential buildings,
- ventilation in houses and apartments,
- ventilation in the HVAC industry,
- mistakes when installing wall intake/exhaust terminals,
- selecting the right size for wall terminals,
- advantages and installation of roof intake/exhaust terminals,
- choosing the location of wall intake/exhaust terminals.
This is a good signal for customers because it shows the company not only sells components, but also educates users about selection and installation.
Company details and contact
The website shows the following company details:
- PPHU DEMA Dariusz Dębski
- Stara Wieś, Aleja Katowicka 254, 05-830 Nadarzyn
- NIP 5341890109
- REGON 016361317
- e-mail: kontakt@demawent.pl
- phone: +48 660 775 571, +48 575 177 606
The site also shows links to social media (Facebook and LinkedIn), plus purchase-related references including Allegro.
FAQ – demawent.pl
What does demawent.pl do?
It is a manufacturer of ventilation components specializing in wall and Type B roof air intake/exhaust terminals, with both standard and custom-size options.
Since when has the company been operating?
The website states the company has been active in the industry since 2000.
Does DEMAWENT produce custom-size elements?
Yes. Both the wall-terminal page and the Type B roof-terminal page emphasize the ability to make custom sizes.
What material are the intake/exhaust terminals made of?
The product descriptions specify galvanized steel, ready for powder coating.
What example prices are visible on the website?
For example: wall terminal 300 × 300 mm for 150 PLN, and Type B roof terminal 200 × 200 mm for 480 PLN.
Does the company publish advisory content?
Yes. demawent.pl runs a Knowledge Base with articles about ventilation, sizing, and intake/exhaust terminal installation.
Who is the DEMAWENT offer for?
The company explicitly mentions B2B cooperation for installers, developers, industrial plants, and wholesalers, but the website also supports purchases and quote inquiries for other customers.
Company Details
Organization: Demawent
Contact Person: Support team
Website: http://demawent.pl/
Email: Send Email
Country: Poland
Release Id: 28022642062