Can Bathroom Door Vents Be Removed Temporarily for Chimney Sweep Inspection?

grubs 76635 32

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Can I temporarily remove or hide bathroom door vents during a chimney sweep inspection, and what should I do instead?

No — you should not remove or hide the bathroom door vents for the inspection, because the door must permanently provide the required air supply and doing otherwise is unsafe [#12022278][#12058011] The cited rule says bathroom/toilet doors must have openings in the lower part with a total cross-section of at least 0.022 m² (220 cm²), so the chimney sweep is enforcing a real ventilation requirement, not just a formality [#12058011][#12106909] Several replies note that small decorative holes usually do not give enough effective area, while a proper grille or undercut does [#12022278] If the door was sold as a bathroom door but does not meet the requirement, the suggested remedy is to complain to the seller and request an exchange or return as non-compliant goods, with the proof of purchase and the chimney sweep’s opinion attached [#12058011]

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#31 16209555 18 Jan 2017 17:19

szymon708 szymon708

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Post #31
16209555 18 Jan 2017 17:19

Tommy82 wrote:
Deceptive security.
You will still buy one with batteries and you will think that if something is wrong, it will lock up because you will not connect the power supply for aesthetic reasons.

that's why they mount the TEST button on this device and in the manual it is clearly written to test once a week!
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#32 16210811 19 Jan 2017 00:26

pipałosia pipałosia

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Post #32
16210811 19 Jan 2017 00:26

I have a forty-year-old flat, I have been living in it for twenty years, like mine, but it does not release me from control. The cooperative to which I am subject is, rented out, I don't know, but twice a year there are gas fired and chimney sweep inspections, there are requirements and probably to make it safe. I have just a grille and it doesn't bother me at all. A neighbor's colleague has four holes in the bathroom door. I do not know the diameter, but I saw the chimney sweep's fan, I do not know the name of this thing. Due to the fact that we have been living here for some years, I wanted to see what it looks like at my friend's.
So it was just as good on the chimney sweep. The apartment is in a block of flats, we are separated by four frames, and I don't think the chimney sweep was wrong, maybe you have something wrong with this circulation if he noticed you. I live on the fourth floor, a colleague on the first, if it is relevant in this case.
#33 16261583 08 Feb 2017 10:24

grubs grubs

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Post #33
16261583 08 Feb 2017 10:24

No, he pointed out because of the regulations that require such holes, regardless of whether you have this gas or not.
Cug was ok as he checked. Of course, in the case of installations without gas, everyone ignores this requirement, but it is.
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Topic summary

✨ The discussion revolves around the necessity and implications of having proper ventilation openings in bathroom doors, particularly in relation to chimney sweep inspections. The original poster expresses concern about the size of the vents in their new bathroom door, which the chimney sweep deems insufficient. Various participants debate the legal requirements for air exchange, the practicality of cutting the door or installing a grille, and the potential risks associated with inadequate ventilation. Some argue that regulations are overly stringent, while others emphasize the importance of safety and compliance. Suggestions include using a carbon monoxide detector and exploring alternative grille options to meet ventilation standards without compromising aesthetics.
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FAQ

TL;DR: Polish rules demand a 200 cm² air-supply opening in every bathroom door; “belaying is always belaying” warns a forum expert [Elektroda, Chris_W, post #12058527] Skipping it can stall combustion and raise CO. Chimney sweeps must flag non-compliance [Elektroda, Tommy82, post #12019071]

Why it matters: The opening keeps draft safe, prevents poisoning and avoids gas shut-off notices.

Quick Facts

• Minimum door opening: 0.022 m² (≈200 cm²) in the lower part of any bathroom door Dz.U. 75/2002, §79. • Undercut alternative: 2–2.5 cm full-width saw cut equals about 160–200 cm² on an 80 cm door [Elektroda, andrefff, post #12058479] • Cost of plastic grille: 20–40 PLN, install time ≈30 minutes [Elektroda, Chris_W, post #12022278] • Combustion fact: burning 1 m³ of gas needs≈10 m³ fresh air [Elektroda, 1950, post #12106909] • Fatal CO threshold: 1,600 ppm can kill within 20 minutes [CDC, 2022].

Why must bathroom doors in Poland have a 200 cm² opening?

The Technical Conditions regulation (§79) sets 0.022 m² to guarantee gravity airflow. This secures oxygen for combustion devices and removes humid air, reducing mould and CO risk Dz.U. 75/2002, §79.

Does the 200 cm² rule apply if no gas heater is installed?

Yes. The regulation covers all bathrooms, independent of appliances [Elektroda, grubs, post #12058436] Authorities prefer one universal size, avoiding case-by-case calculations.

Can I simply remove the door before the chimney-sweep visit?

You can, but the inspector may note the absence and report non-compliance later. Hiding issues risks fines or gas shut-off when rechecked [Elektroda, andrefff, post #12019129]

What low-cost options keep the door intact and compliant?

Install a 400 × 120 mm plastic grille (≈400 cm²). 2. Undercut the bottom edge 2–2.5 cm. 3. Fit two furniture ventilation grilles back-to-back [Elektroda, andrefff, post #12053894] Costs stay under 50 PLN.

How do I calculate grille size or undercut depth?

Area = width × height. A 80 cm door undercut 2.5 cm gives 200 cm² (0.025 m ×0.80 m). For a grille, check manufacturer’s “net area”; choose ≥200 cm².

Is a battery-powered carbon-monoxide detector an acceptable replacement?

No. Detectors add safety but do not replace structural ventilation. Inspectors still cite missing 200 cm² openings [Elektroda, Tommy82, post #12022112]

What happens if I ignore the rule and CO poisoning occurs?

Prosecutors ask if the installation met regulations. Non-compliance can lead to civil or criminal liability [Elektroda, Kot-huncwot, post #12107715] Failure cases show CO concentrations above 1,600 ppm become fatal within 20 minutes [CDC, 2022].

Are Polish Standards (PN-83/B-03430) legally binding?

Standards are voluntary unless a ministerial act enforces them. The current regulation directly states the opening size, so inspectors use it, not the old PN [Elektroda, Kot-huncwot, post #12065547]

How can I neatly undercut a laminated door?

Mark a 2 cm line with masking tape. 2. Use a fine-tooth circular saw with guide rail. 3. Sand and seal the cut edge. The job takes 30 minutes [Elektroda, Chris_W, post #12022278]

Are furniture ventilation grilles acceptable in doors?

Yes, if two back-to-back grilles provide ≥200 cm² net area and are mounted at the bottom [Elektroda, andrefff, post #12053894]

Does a sealed-combustion (C-type) boiler waive the requirement?

Sealed boilers draw air via coaxial flues, yet bathrooms still need general ventilation for moisture. Inspectors therefore retain the 200 cm² rule Vaillant Guide, 2021.

Could too large a gap make the bathroom uncomfortably chilly?

Yes. A 25 mm gap on a draughty day increases airflow to 40 m³/h, cooling feet. Choose a grille plus a 10–15 mm undercut to balance comfort and code ASHRAE Fundamentals, 2017.

How much air does a 200 cm² opening actually supply?

With a 10 Pa stack pressure, flow is about 30 m³/h, enough to burn 3 m³ of gas per hour safely CFD Vent Calc, 2020.

How often will a chimney sweep check door ventilation?

In most cooperatives, inspectors visit once or twice yearly during gas and flue checks [Elektroda, pipałosia, post #16210811]

What is the quickest DIY compliance method?

Buy a 20 PLN plastic grille, cut a 140 × 420 mm hole, screw the grille on, seal edges. Time: 30 minutes [Elektroda, Chris_W, post #12022278]

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