WiFi socket with schedule without fixed WiFi coverage - alternatives

I need a WiFi socket or other 'smart solution'.

I have various devices in the house that are not used all the time e.g. the socket by the boiler (let's say I would like this device to run twice for 1 hour each during the day) or the power supply for the terrestrial antenna in the attic (let's say I want it to be switched off at night and restarted in the morning) and other devices. I would like to start saving electricity by temporarily switching off these appliances. Ideally, I would like to configure a particular device once (on/off schedule) using, for example, a smartphone. Later this configuration was remembered (not counting the time change). As far as I can see, WiFi sockets enable this, but unfortunately they do not work when there is WiFi coverage and I do not want the socket in question to work only when there is WiFi. After all, I am not going to force a router/access point into a socket so that it starts up/shuts down and is in WiFi range....

I think the problem of the WiFi socket is "no battery to remember the schedule".

I am therefore asking for some simple ready-made solution. What is worth buying ?

And a classic electronic programmer without WiFi can't be?

...or a simple power strip with switches?

Or master-slave strip. Drawing current from the master socket switches power to the slave sockets.

electronic programmer - when I once switched two sockets into different sockets, the sockets alternately switched off/on, but not in the order required.... Generally speaking, one socket from one room interacted with another from the other room....
Unless the current (modern) ones do not have such disadvantages. Here you can give me some advice.
I should add that when there was one socket (electronic programmer) everything was OK.

a regular power strip with switches - I can't imagine flying to the attic and to a separate building every day to switch on/off the boiler or the terrestrial TV power supply....

ordinary power strip with switches - generally only one appliance will be in the socket.

Switch-mode power supplies "don't like" switching off the power supply and for such power saving later costs several times the savings. Such an antenna power supply will draw current for maybe 50 cents a month.

fckg wrote:

...I can't imagine flying to the loft and to a separate building every day to switch the boiler on/off...

I can't either. But here a simple programmer, even a mechanical one, is the perfect solution. It is a simple, cheap and very reliable device. There is also no possibility of these types of programmers interacting with each other.

kood wrote:

Pulse power supplies "don't like" switching off the power and for such power saving later costs several times the savings. Such an antenna power supply will draw current for maybe 50 cents per month.

So what is the best programmer to buy mechanical/electronic or otherwise to avoid such problems?

Also, I would like to power down, for example, a laptop connected to the internet via LAN. It is in the socket all the time.

Wouldn't that be changing the axe into a stick?
You disconnect a couple of small power supplies, and in their place you plug in a couple of remote sockets, which also take some current to power their electronics.

I would rather start by buying a power meter to check what individual circuits actually consume enough energy to make it worthwhile. Such a power supply for an antenna consumes, say, 100mA at 12V, which gives 1.2W, per month it comes out to about 0.8 kWh, which is about 50 cents, let's assume that it will not work for half of a day, which gives 25 cents savings per month. A power supply that is switched off and on will break down quicker so the investment will never be recovered.

I even have a note of how much the devices draw from such a WiFi socket.

A boiler like this uses 3-4 kWh in one day. The other appliances I can't remember because I'm at work (I'll have to check when I get back).

fckg wrote:

I even have a note of how much the devices draw from such a WiFi socket.

Such a boiler consumes 3-4 kWh in one day. The other appliances I can't remember because I'm at work (I'll have to check when I get back).

Measure how much electricity it uses when no water is drawn from it.

As for a Wi-Fi controller that also works when there is no coverage, some sort of 'smart plug' supporting software Tasmota would take care of the matter.
This is neither off-the-shelf nor particularly simple (it requires firmware to be uploaded and configured) but it offers a great deal of potential. You can set it up so that it works completely independently, but when it detects Wi-Fi coverage it connects. Or you could make it so that the plug puts out its own access point to connect to, e.g. to change the schedule (which, incidentally, it will remember after a power reset).