Central heating control, need advices
Verfasst: 14.01.2019, 12:30
Hi,
I've been reading about homematic products for a couple of weeks now but as I don't speak german, and as google translate is not perfect, I still have a couple of questions.
My goal, as many people here, is to control my boiler and radiators. I plan to do this in three steps:
1/ buy homematic valves + window sensors and get these to work quickly without any kind of ccu
2/ buy a ccu2 or ccu3 or raspberry adapter (more probably the latest) and learn how to communicate with the devices bought for step 1
3/ control the boiler with the appropriate actuator
My questions are for step 1, I found two different solutions.
First I could buy as many starter kits as radiators I have to control: HM153413 https://www.homematic-inside.de/produkt ... terkontakt . Lets call this kit 1.
Or I could buy HM-CC-RT-DN + HM-Sec-SC-2. Lets call this kit 2
With kit1 or kit2 if I understood everything correctly I can use them without a CCU at first. However it is unclear if, without a CCU, I can use one window sensor to control several valves at the same time or control several valves with several window sensors.
Then, I don't want to ever have to rely on an internet connection to control my heating. With kit 2 and a CCU2/3 that will be possible, but as kit 1 is homematic-IP will I have to connect my ccu 2/3 to the internet ? If it's only a matter of a one time actuator registration that'll be fine but there is no way I'll accept to rely on an internet connection to program my radiators.
Finally, except for hypothetical internet connection requirement with HM153413, are there key differences between HM-CC-RT-DN and the valve used in HM153413 ?
Thanks a lot !
I've been reading about homematic products for a couple of weeks now but as I don't speak german, and as google translate is not perfect, I still have a couple of questions.
My goal, as many people here, is to control my boiler and radiators. I plan to do this in three steps:
1/ buy homematic valves + window sensors and get these to work quickly without any kind of ccu
2/ buy a ccu2 or ccu3 or raspberry adapter (more probably the latest) and learn how to communicate with the devices bought for step 1
3/ control the boiler with the appropriate actuator
My questions are for step 1, I found two different solutions.
First I could buy as many starter kits as radiators I have to control: HM153413 https://www.homematic-inside.de/produkt ... terkontakt . Lets call this kit 1.
Or I could buy HM-CC-RT-DN + HM-Sec-SC-2. Lets call this kit 2
With kit1 or kit2 if I understood everything correctly I can use them without a CCU at first. However it is unclear if, without a CCU, I can use one window sensor to control several valves at the same time or control several valves with several window sensors.
Then, I don't want to ever have to rely on an internet connection to control my heating. With kit 2 and a CCU2/3 that will be possible, but as kit 1 is homematic-IP will I have to connect my ccu 2/3 to the internet ? If it's only a matter of a one time actuator registration that'll be fine but there is no way I'll accept to rely on an internet connection to program my radiators.
Finally, except for hypothetical internet connection requirement with HM153413, are there key differences between HM-CC-RT-DN and the valve used in HM153413 ?
Thanks a lot !