Ciao a tutti! Sto cercando di capire le migliori impostazioni per il mio radiatore e sono un po’ confuso. Ecco la situazione:
Abbiamo questi radiatori standard con impostazioni numerate. Impostarlo su 3 sembra la soluzione più logica, ma per qualche motivo si sentono rumori costanti e sembra che il radiatore continui a riscaldarsi ancora e ancora. Ho anche paura di dover pagare una bolletta energetica enorme entro la fine dell’inverno, quindi cerco di stare attento.
Arieggio la stanza regolarmente ma non spengo il radiatore quando lo faccio: sento che è meglio lasciarlo a un’impostazione costante. Qualsiasi valore superiore a 3 (come 4) sembra troppo caldo, ma 3 è effettivamente efficiente? Dovrei semplicemente mantenerlo o sarebbe meglio abbassarlo ancora di più o alzarlo fino al punto rosso?
https://www.reddit.com/gallery/1ha4tmp
di vselegko
12 commenti
To the noises: Radiators regularly make them but they sometimes need to be aired out (depending on the type of radiator).
To the reheating: The thing you open is not there to heat permanently but to achieve a certain temperature. If that temperature is achieved it will stop until it needs to heat again, at least thats how my radiators work.
I can’t give you a certain “do x”, because I am no expert and just a regular dude, but at least I can add this info. The numbers meaning varies from radiator to radiator, I had appartments where 2 was perfect 22°C and I had appartments where 3.5-4 was about 22°C.
Sounds like air trapped in the system. Usually, it’s best to vent your radiators once a year before the heating period. Most probably you’ll need a special key to open the air vent (get it at the hardware store). You can Google the correct way to do it. You’ll also have to look if the water pressure in the system has dropped too much after venting. If that’s the case, contact your landlord, so he can call his contact for maintenance.
Edit: https://www.dein-heizungsbauer.de/ratgeber/wartung/heizkoerper-entlueften-anleitung/
You have air inside. You have to open the small valve and let the air out until water will come out. Then no more noises and heat will be constant and uniform. About heating level it depends on so many factors… as an example, I have a very small living room and I keep the radiator always off; when I’m cold I just put it on 5 and the room is warm just after 10 minutes. Just use it as you feel comfortable 🤷♂️
“ and it feels like the radiator keeps reheating over and over” it’s exactly what the thermostat supposed to do.
Basic rules – keep your house minimum at 18-20 degrees (it’s between 2-3) and ventilate it at least once a day. The rest depends on your liking. Don’t worry about utility bill too much, it’s gonna be way more expensive to cure diseases caused by low temperature, just make yourself comfortable.
Those Radiators actually do measure the temperature, and adjust themselves to keep the room warm. So leaving it at 3 seems the best options, if you dont feel too cold at home.
Ventilating the flat is important. Best is to do the infamous “Stoßlüften”. You basically open EVERY window in your flat completely for around 5 min. If it feels like too cold, id recommend to buy a hygrometer, a digital one. Set it aside in a room with less ventilation, and keep it around 50%. If its not much more than that, you dont need to open the windows too often.
Constant noise from the radiator isn’t normal. Maybe there‘s air in the system? You should check that out.
How high you need to set the radiator to avoid mold depends on a lot of factors, including the insulation of your home. The best way to avoid mold is to get a hygrometer and try to keep the relative humidity below 60% by venting your rooms periodically and making sure it‘s warm enough. Set the temperature to a level that feels comfortable to you, observe the hygrometer and air out the apartment once you hit 60% or above. If you struggle to keep it below 60%, turn up the heating.
Easiest solution: get hygrometers for each room (they are pretty cheap) and follow [this guide](https://www.verbraucherzentrale.de/sites/default/files/2019-05/energy-saving-tips-english-VZ-NRW.pdf) plus keeping the humidity below 60%.
The numbers on the radiator tell you to what temperature you’re trying to heat the room. The 3 setting means 20°C room temperature. Does that sound like the temperature you want?
If the radiator is making noises, it probably means you need to bleed it (=let out the air). In general the recommendation is to turn off the radiator for Stoßlüften.
If you want to save money, and you don’t use the room during certain hours, the recommendation is to turn the radiator down to 2 to save energy and reduce costs.
In the end, it doesn’t just depend on the radiator though how much money you’ll have to pay because a well-insulated home will need less energy to heat up and maintain the heat.
Just to add to this question.
What are we supposed to do when going on a month long vacation.
Keep windows in tilt position? There wont be anyone to perform lüften.
I don’t understand why people prioritize keeping heating things (radiators, ovens, etc) at constant temperatures when the heat isn’t needed in that moment. It’s a waste of energy. Just turn it down. (For radiators) temporarily and when you’re done with lüften, turn it back up. Is there ever a time keeping the temperature the same is good advice?
Put it where the blue dot is for a steady 18°C.
The constant on and off is how it works. Radiators can’t just get mildly warm, they only have two basic settings, just like pretty much all heating elements: On and off. They get to the temperature you want by connecting the on/off switch to a thermostat that measures the temperature. It turns the heat on when it gets too cold, and off when the temperature is reached. That’s what this thing does. Behind it there’s a valve with a pin, and when the thermostat measures the temperature you set it to, it presses on the pin, which closes the valve and turns the radiator off. It shouldn’t make noises though, at least not more than maybe a constant very quiet hum from the water flowing through. This probably means there’s some air trapped inside.
Also while 3 should be the regular room temperature setting, with older thermostats the settings can be messed up. Like at my place, setting the radiators to 1 actually heats them to around 20°. You should get a room thermometer and see what setting actually corresponds to what temperature.