Network cable in every room?

My 2 cents as a sys-admin...

2 TVs
1 Sat receiver
1 Blu-ray player
2 game consoles
1 WLAN access point
1 network printer
1 PC
1 network hard drive
1 heat exchanger
1 ventilation system

Just with the "basic equipment" more than 10 are already in use. It gets tight in a "consumer" WLAN.

The two laptops, 2 phones, tablet, Kindle, Amazon FireTV and Chromecast run over WLAN. The rest is wired. Solely due to bandwidth and stability.

You can never have enough cables and sockets.

1 heat exchanger 1 ventilation system

Which ventilation (and which heat exchanger) comes with LAN connection?

Danfoss heat exchangers for district heating and all current Helios controlled residential ventilation.

This is a similar discussion to how many sockets are needed behind the television.

We have

[*]2 double sockets in the study (so far only the network printer)
[*]1 double socket in the living room behind the television (television and Blu-ray player - I don't have any more devices there)
[*]1 double socket in the dining area (was intended for the base station of the telephone, but is not used because of the use of DECT from the Fritz!Box)
[*]1 double socket each in the bedroom and the two children's rooms (currently only 2 televisions)

After almost a year, I have not missed another socket so far.

Hi,

Which ventilation (and which heat exchanger) comes with a LAN connection?

The controlled residential ventilation devices and heaters mostly all come with a LAN connection... whether that is really necessary is another matter.

Best regards,
Andreas

As with everything, you can either neglect it like a stepmother or overdo it. You are never truly prepared for all eventualities, even if you install 30 outlets, but trying to network everything via Wi-Fi to save €200 on cables is also grossly negligent. Everyone knows themselves best and can assess whether everything needs to be networked or if only certain standard devices should be connected. Most will probably get by with 6-12 double outlets, but there should be at least one in every living, bedroom, and children's room.