Home automation planning and costs

I agree . Especially with lighting (also because of pets) I can't imagine any "relief" with KNX, my electric blinds are equipped with €50 switches and operate partly based on time, partly on solar position and additionally as shading controlled by light. I haven't touched the switches for almost 2 years except for the children's room because of naps. Otherwise, there isn't much that I would have to wire. Heating runs autonomously after setting, ventilation system as well (actually every manufacturer offers ventilation based on air quality, my Helios has extensive control built-in).

sent from on the go

The advantage is that you have to deal less with unnecessary things... you also don’t have to go back home because a light is still on somewhere or the washing machine has a leak. The bus system switches off the lights and unnecessary consumers for you and shuts off the main water valve in an emergency.

Not everyone has to install a bus system... you would hardly believe it, but there are still people today without a phone, television, and other unnecessary things.

Only if you decide to do something like this, you should plan it well beforehand and have it installed (or have it installed); whether it is KNX or something else is up to each individual. Just please don’t talk about smart home when you can switch lights and operate blinds with your smartphone... there is nothing smart about that...

The advantage is you have to deal less with unnecessary things... you also don’t have to go back home because a light is still on somewhere or the washing machine has a leak. The bus system switches off the lights and unnecessary consumers for you and shuts off the main water valve in an emergency

I just assume that if KNX is supposed to monitor all electrical devices and also has water sensors for the leaking washing machine, then that also comes with additional surcharges, so it’s not exactly cheaper than without. I think it also depends a lot on one’s own fun/play instinct for such a system. For me, it would involve many times the cost and time without being worthwhile (I definitely wouldn’t save enough time either). If I had done it or would do it, I would also prefer KNX over the many single-manufacturer solutions. from on the go

Yes, it's just like with cars... and if someone comes along again and says the comparison doesn't work... I say it does indeed work.

Some people buy a Golf in the basic version and are happy with it... but others need a light sensor and a rain sensor and a parking sensor, and they pay an extra charge for that.

The conclusion is: Both get from A to B, but the second person didn't have to press or turn anything when the rain came or when they drove through a tunnel.

What terrible thing happens if you forgot the light? 12h a how many watts does an LED have?

And who has a moisture detection in the basement that is linked to the main shut-off valve? And what for KNX? That is a simple if then automation. For that, I can fall back on something proprietary.

The comparison with the light sensor is not bad. I always automatically turn the light on 5 seconds after ignition. Even in August at midday sun.

I think the important things about a car are the model, equipment like leather seats, or the performance. Better an E-Class without a light sensor than a Golf with a light sensor.

The other problem: in a car, I do not have to reprogram the light and rain sensor every few weeks. There is a logic that is universal. In the context of individual, daily changing living habits in a single-family house, it looks quite different.

Otherwise, the car comparison is great, you have to buy an expensive package for rain and light sensors, which includes a lot of stuff you never need and never use, the time saved is minimal, and occasionally the (light) rain sensor doesn't work as you want, so you have to intervene manually and first have to figure out how to do it, because you only use it occasionally, not regularly.