Condensation - fogged windows are the worst! Condensation makes it difficult to look out of the windows and worse - it can damage the building's condition and interior. If left long enough, it can develop into mold, which is harmful to you and your health. If you notice condensation, remove it with a cloth. But fortunately there are also ways to minimize the formation of condensation.
Condensation occurs when warm air meets a cold surface in a room with high humidity. Therefore, it frequently occurs in the winter months, when the radiator is at full blast and the warm air in the room hits the cold windows. But it is the humidity that you need to pay attention to, because you can control it. The humidity is therefore the key to minimizing condensation and thus achieving a good indoor climate.
The recommended humidity level in a home is 30-60%. In winter, preferably at the lower end, i.e. 30-45%. Humidity is measured with a hygrometer, which is an incorporated function in several thermometers.
The biggest source of moisture indoors is the residents and what they do in the house. A typical family produces around 10 liters of moisture per day. It is often the bathroom and the kitchen that are the biggest culprits, where cooking, coffee brewing and hot showers generate large amounts of moisture - in addition to general breathing, but please don´t try to regulate that part 😉
In order to keep the air humidity at a suitable level, it is therefore essential to have good ventilation and regular airing. Be sure to use the hood when you are in the kitchen and be sure to turn on the ventilation in the bathroom.
In rooms without windows or in modern buildings with good window constructions, less air gets in. Therefore, you should pay particular attention to good ventilation and possibly use forced ventilation in these areas. A ventilation rate of 0.35 l/s per m2 is sufficient here. This is equivalent to replacing the air in the room every two hours.
Many radiators today work by means of convection heat. In short, convection heat heats the air in a room. This has a big impact on why radiators are usually placed under a window or in front of large glass sections as cold air moves downwards, while warm air moves upwards. So, when cold air enters at the window, it searches down into the radiator and is heated, after which the now warm air searches up and spreads in the room. This can however also be one of the culprits in the forming of condensations as the circulating of warm air that comes in direct contact with a cold surface will cause condensation. The problem only gets bigger if the room is un-insulated and have poorly glazed windows.
If you should counteract this, you will need a heat source that doesn’t move the air at all - thus you will need a radiant heat source. In short, radiant heat heats surfaces, objects and people in the room. A radiant heat source could be radiant heat panels or underfloor heating. A radiant heat sources will continue to radiate warmth to colder surfaces or objects in the room and the air will then get warm that way. As the air is not artificially circulated and thereby hitting cold surfaces - there will most like be not condensation.
This gives us a clue on how to avoid condensation - eliminate the cold surfaces and don’t move the air. This is just another reason why proper wall insulation, double-glazing windows etc. for optimum energy efficiency should be prioritized to minimize the cold surfaces the air and heat will encounter. As elimination of cold surfaces and no air movement is almost impossible in real life, a combination of convection heat and radiant heat would be preferable. Most Hudevad radiators produces a mix of radiant and convection heat with a typical distribution of 70/30, i.e., 70% convection heat and 30% radiant heat.
Do you need help?
If you need more information on the subject, you are always welcome to contact a specialist at Hudevad. We are happy to guide you.
Too low humidity
When the air in a room feels dry, it is often due to low humidity. Rooms that are not sufficiently heated often have low humidity, which dries out the skin and increases the amount of dust in the room. Negative consequences of this include an increased risk of allergies and asthma. In addition, dry air can irritate the lungs and increase the risk of viral infection.
Too high humidity
Although the effects of too low humidity are negative, the consequences of too high humidity are even worse. It increases the humidity of interiors and surfaces such as plaster walls and window sills, which are perfect conditions for the growth of mold and bacteria. And it can cause several diseases and general health problems such as allergies, fatigue and headaches.
Mvuke - madirisha yenye ukungu ndiyo mabaya zaidi! Mvuke huo hufanya iwe vigumu kutazama nje ya madirisha na, jambo baya zaidi, unaweza kuharibu hali ya jengo na mambo ya ndani. Ikiwa umeweka kwa muda mrefu, unaweza kuwa na kuvu, na hilo linaweza kukuumiza na kukuumiza. Ukiona umajimaji, uondoe kwa kitambaa. Lakini kwa bahati nzuri kuna pia njia za kupunguza kufanyizwa kwa mvuke. Mvuke hutokea wakati hewa ya joto inapokutana na uso baridi katika chumba chenye unyevu wa juu. Kwa hiyo, mara nyingi hutokea katika miezi ya majira ya baridi kali, wakati radiator ni katika mlipuko kamili na hewa ya joto katika chumba hits madirisha baridi. Lakini unahitaji kuzingatia unyevu, kwa sababu unaweza kuudhibiti. Kwa hiyo unyevu ni ufunguo wa kupunguza condensation na hivyo kufikia hali ya hewa nzuri ya ndani. Kiwango cha unyevu kinachopendekezwa katika nyumba ni 30-60%. Katika majira ya baridi, ikiwezekana katika mwisho wa chini, yaani 30 hadi 45%. Unyevu hupimwa kwa kutumia kipima-homa, ambacho ni sehemu ya vipima-joto kadhaa. Chanzo kikubwa cha unyevu ndani ya nyumba ni wakazi na kile wanachofanya ndani ya nyumba. Familia moja ya kawaida hutengeneza karibu lita 10 za unyevu kwa siku. Mara nyingi ni bafu na jikoni ambazo ni wahalifu wakubwa, ambapo kupika, kahawa na kuoga moto hutokeza kiasi kikubwa cha unyevu - pamoja na kupumua kwa ujumla, lakini tafadhali usijaribu kudhibiti sehemu hiyo. Jitahidi kutumia hood wakati uko jikoni na ufanye kazi ya kuingiza hewa kwenye bafu. Katika vyumba visivyo na madirisha au katika majengo ya kisasa yenye madirisha mazuri, hewa kidogo huingia. Kwa hiyo, unapaswa kuzingatia hasa uingizaji hewa mzuri na uwezekano wa kutumia uingizaji hewa wa kulazimishwa katika maeneo haya. Kiwango cha uingizaji hewa cha 0.35 l / s kwa m2 ni cha kutosha hapa. Hii ni sawa na kubadilisha hewa katika chumba kila baada ya saa mbili. Vifaa vingi vya kupasha joto leo hufanya kazi kwa kutumia joto linalotokana na mwendo wa hewa. Kwa ufupi, joto la convection huongeza joto la hewa katika chumba. Hii ina athari kubwa kwa nini radiators ni kawaida kuwekwa chini ya dirisha au mbele ya sehemu kubwa kioo kama hewa baridi anaenda chini, wakati hewa ya joto anaenda juu. Wakati hewa baridi inapoingia kwenye dirisha, inapita kwenye radiator na kupasha joto, na baada ya hapo hewa ya joto inapita na kuenea katika chumba. Hata hivyo, hii pia inaweza kuwa moja ya wahusika katika kuunda condensation kama mzunguko wa hewa ya joto ambayo inakuja katika mawasiliano ya moja kwa moja na uso baridi kusababisha condensation. Tatizo hilo huongezeka tu ikiwa chumba hicho hakina insulation na kina madirisha yasiyo na kioo. Kama unapaswa kukabiliana na hili, unahitaji chanzo cha joto kwamba haina kusonga hewa wakati wote - hivyo unahitaji chanzo cha joto radiant. Kwa ufupi, joto la mnururisho hupasha joto nyuso, vitu na watu walio katika chumba hicho. Chanzo cha joto radiant inaweza kuwa paneli joto radiant au joto chini ya sakafu. Chanzo cha joto cha radiant kinaendelea kuangaza joto kwa nyuso baridi au vitu katika chumba na hewa itakuwa joto kwa njia hiyo. Kama hewa si bandia mzunguko na hivyo kugonga nyuso baridi - kutakuwa zaidi kama kuwa si condensation. Hii inatupa clue juu ya jinsi ya kuepuka condensation - kuondoa nyuso baridi na si kusonga hewa. Hii ni sababu nyingine ya sababu ya insulation ya ukuta sahihi, madirisha ya glasi mbili, nk. Ufanisi wa nishati bora unapaswa kuwa na kipaumbele ili kupunguza nyuso baridi hewa na joto itakayo kukutana. Kama kuondolewa kwa nyuso baridi na hakuna harakati hewa ni karibu haiwezekani katika maisha halisi, mchanganyiko wa convection joto na joto radiant itakuwa bora. Radiators Hudevid hutoa mchanganyiko wa joto radiant na convection na usambazaji wa kawaida wa 70%, yaani, 70% joto convection na 30% joto radiant. Je, unahitaji msaada? Ikiwa unahitaji habari zaidi juu ya mada hii, unaweza kuwasiliana na mtaalamu wa Hudud. Tunafurahi kukuongoza. Unyevu wa hewa: Wakati hewa katika chumba inaonekana kavu, ni mara nyingi kutokana na unyevu wa chini. Vyumba ambavyo havijapashwa joto vya kutosha mara nyingi huwa na unyevu mdogo, ambao hufanya ngozi iwe kavu na kuongeza kiasi cha vumbi katika chumba. Matokeo mabaya ya jambo hilo yanatia ndani kuongezeka kwa hatari ya kupatwa na mzio na pumu. Kwa kuongezea, hewa kavu yaweza kuchochea mapafu na kuongeza hatari ya maambukizo ya virusi. Unyevu wa juu sana: Ingawa athari za unyevu wa chini sana ni hasi, matokeo ya unyevu wa juu sana ni mbaya zaidi. Inazidisha unyevu wa mambo ya ndani na nyuso kama vile kuta za plaster na sills za dirisha, ambazo ni hali bora kwa ukuaji wa kuvu na bakteria. Inaweza kusababisha magonjwa kadhaa na matatizo ya afya ya jumla kama vile mzio, uchovu na maumivu ya kichwa.