Installing smoke detectors is mandatory

That's a great solution .
Tell us roughly how much you spent on it.
In my opinion, lots of overhead for little real added value, but that's KNX anyway.

Little added value... aha! You can judge that because you've lived in a smart home for 25 years, right? In my opinion, my aforementioned application of the RWM alone is a very big added value since in case of emergency it saves the lives of my children and family. It is certainly helpful when the fire department can quickly get into the house and we can quickly get out of the house. So if that's not added value...

Hello everyone, Altai is looking for a cost-effective option, as there is still so much house left for very little money. Please don’t start now with KNX, that blows the budget for the majority of builders and isn’t even remotely utilized there.

little added value... aha! You can judge that because you’ve already lived in a smart home for 25 years, right? In my opinion, my aforementioned application of the smoke detector already provides a very big added value alone, as it saves the lives of my children and family in case of emergency. It is definitely helpful if the fire brigade can quickly get into the house and we can quickly get out of the house. So if that’s not added value...

You took this more critically than it was meant. I don’t think KNX is bad, but the cost/benefit ratio doesn’t really seem attractive to me. My house is old and stupid, I have a few gimmicks via WLAN, but all quite simple. By little added value I meant that the main function of a smoke detector is to actually detect smoke, and a device for €10 does that just as well. I mean, what do you practically do with the smoke detector’s SMS? Call the fire brigade? Check first? Sure, if you have security shutters in front of every window at night, it’s great in case of fire if they also go up. I just don’t have that, my shutters are manual and never down anyway, I don’t particularly like those things. In that respect, I also hope that me and my children will be saved.

There are simple smoke detectors with wireless capabilities for under 30 euros each, sometimes even around 20 euros (mine were almost 50% off back then). They are somewhat basic and don't allow for many fancy features. One is the main detector - possibly above the bed - that always triggers, and the others are secondary detectors (which trigger depending on the system). They do their job; in the house, nobody will miss it, and if you're not at home, well, what to do with an SMS notification. You probably need a system like . I guess Steffen can check the room temperature to see if there really is a fire. Many manuals state that the detectors should be replaced after at most 10 years. Then you can still decide on a different system.

Hello everyone, Altai is looking for a cost-effective option, since there is still so much house left with very little money.

Well, it’s not quite that dramatic the house is finished, but bills keep coming in (currently for example, the chimney sweep, for the commissioning of the heating system). And of course, at a time when you’re balancing on the financial limit, everyone else surely also thinks they want their money NOW (land registry, for example). Then there are other fun things, like my next tenant backing out and the agreed takeover sum not coming in... and suddenly you’re already thinking about how much you want to spend where right now. The offer for seven wirelessly networked detectors is €750. If I buy the "cheap ones" instead, apparently I come in under €200. Viewed over 10 years that’s peanuts, but right now… The offer comes from an official fire protection office with which my site manager has good contacts. That’s why, to be honest, I haven’t looked further myself. Maybe I’ll ask them for an updated offer with a retrofit solution, that would be a good compromise. Or do you think the prices are beyond any reason? Included in the price is a technician who commissions the system. And by the way, at work, when the office door is closed, I hear the alarm very muffled indeed. In my rented apartment I once triggered the detectors; a crowd gathered on the street and people were considering calling the fire department... that was very piercing. And to answer the initial question for : the investigations into the cause of the fire are still ongoing. It was more a former neighbor... when at eleven o’clock at night the father of my kids called me asking me to pick up the children from him because there is a fire in the immediate neighborhood and the fire department is not getting the fire under control... that really scared me. I had jokingly said at some points "we’ll do it when the smoke has cleared" (my phrase for postponing things that perhaps don’t have to happen IMMEDIATELY)... but right now that sounds a bit macabre.

I have Smartwares wireless smoke detectors, they are very cheap, 2 for about 20 euros, I have also accidentally tested them while frying an egg for breakfast. They all went off, so they do what they are supposed to do. The battery is supposed to last about 1 year.