Originally posted by: Hi, a quick question, I’ve noticed there appears to exist a FHTB II thermostat. The only thing I find on the. Jan. Hi, I’ve run into the issue with FHTB I’ve configured it in IP-Symcon and I’ve implemented the heating logic (for electrical heating using SU. FHT 80b & FHT 8V Combo Set Owner’s Manual Size: ( MB), All the information needed Works with additional FHT80TF-2 Window Contacts for automatic.

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Or is there some other device I need to buy? I noticed some discussions that talk about the “IST” temperature Or is there some smart setting that can activate this when desired? Any help for me? To post to this group, send email to fhem-users googlegroups.

Marketing, Verwaltung Bitte keine unaufgeforderten privaten Nachrichten! Anyway, yes, fhem can handle the FHT80b, however, since the fht80b is a wireless device and doesn’t have a serial port or anything like thatfhht will also need either a CUL device from busware or an FHZPC or FHZPC where the later one can also receive data from some additional devices like fhht KS weather station.

But FHT80B’s main purpose is to control the room temperature using the radiator and is not usable as stand alone temperature sensor.

I know they intend to get everything working that works with a FHZ and moreI’m just not sure how far they got yet. But I would also suggest the HMST F for this purpose though, unless you actually want to control your radiators with it, too.

I’ll try to describe more clearly what I would like to do: In order of importance: The ventilation system only has 4 settings: I’ll be buying a home security alarm very soon, placed by professionals needed by inssurance.


It is a Siemens alarm don’t remember exact type right nowand it appears to endorse X10 of some kind and possibly also simple serial communication via optional module. Since there will be magnetic triggers on every window, I would like to have both systems communicate with each other in a sense that the security system indicates which window is open, contradictory to Conrad wireless system to detect open doors and windows.

I kind of hope to place FHEM in the middle to interpret security signals. It is of course clear that systems only endorsed by communication through pc and FHEM won’t of course work when the pc is offline for some reason, but at that point, each separate system should be capable to continue to work individually: Now to get back to that heating: I have the choice here: I’m not sure if I am able to make this understandable.

Affordable aftermarket Wireless Thermostats – with boiler control • Eco House Comfort

I’m also not sure if this has advantages or disadvantages I’m wondering which is best for the valves Anybody an idea how long the lifespan is of such a heating system? I only known the FHT family. Beyond that, you need a running FHEM device, in order to have a continuous log of your data in any way.

If you are interested, just have a look to the commercial product idea on the FHEM page. Best regards, Olaf On 28 Mai, It seems like I can go ahead with a conrad set. Actual temperature will be logged, etc I guess I can place those anywhere I want seen the odd way I engineered my piping system.


FHEM is capable of gestioning all, so I guess it’s up to buying the right hardware now. If you know a cheaper place to buy sets, don’t hesitate to let me know A lot more possibilities, I didn’t even know about I noticed IR controllers, V dimmers, audio controllers Especially that IR controller and V dimmer is interesting for my ft application suddenly thrilled like a little boy seeing toys!!!

It tht they are compatible with FS20? Will they also be usable for the “IST” 80n-2 actual temperature?

Which FHT thermostat kit to buy?

Many thanks getting very excited from the goodies and toysDave. The quote was selected randomly. You can access the WS through fhem.

Through the WS fhem can receive the signals of the WS family. CUL is not a real WS replacement: This is true even if the softbuffer is on.

FHT 80b Wall Thermostat

I consider an extension of the FHT. What do you think?

I can prove your problem: Datails for the technically inclined, not for manager: The size of the slot depends: Strangely, if the communication aborts which happens quite oftenthen further slots in the buffer are allocated, I am not sure what happens if the buffer is full and the communication aborts.

A command entry in the slot is deleted, if the command was repeated by the FHT. This is not optimal, as 880b-2 FHT only accepts a command, when the 08b-2 ack for the whole chain was sent. If the communication is not perfect, then the number is bigger due to resends.