Hi.
The EcoEl 1550/1800 doesn't seem to have much in the way of remote control, but if you just want to monitor the house temperature then I can't see why that shouldn't work.
If you want to control it then it might not be so easy.
If I read the manual correctly it has the posibility of triggering the function to create extra warm water, or to disable the pump/heater, or to trigger "reduced temperature at night". But thats about all it can do.
Newer models have the possibility to be controlled and monitored over the internet (CTC Connect), but it doesn't look like it works with your model.
good luck
(also located in Blekinge ; )