I hope you guys can help me figure out what happened a few weeks ago. I have mailed the manufacturers, but Valliant didnt bother to have someone with knowledge read the mail, and evohome couldnt come up with an answer.
So I have a reasonably isolated, but older house with 5 heating zone with one HR92/radiator each. Radiators only, no floor heating. 4 year old Valliant ecotec 5.5 gasheater (boiler temp set at 60C) and the first color version of evohome, using opentherm to communicate with the heater. We were a long weekend away, so I manually put all HR92's to 15C continuously. We left on friday, so by Saturday all rooms cooled down to 15C. The evohome system was able to maintain this temperature untill we returned by frequent requests for low heat (see picture with pink graphs for example of 2 rooms).
1.jpg
When I returned sunday night, I was shocked that I used about 7m3 of gas that Saturday, which is my daily usage the whole week before, when there is a person at home all day heating the living room to 21C, and a family in the evening.
2.jpg
Does anyone has an idea why the usage is this high, while the setpoint temperatures were very low??
So I have a reasonably isolated, but older house with 5 heating zone with one HR92/radiator each. Radiators only, no floor heating. 4 year old Valliant ecotec 5.5 gasheater (boiler temp set at 60C) and the first color version of evohome, using opentherm to communicate with the heater. We were a long weekend away, so I manually put all HR92's to 15C continuously. We left on friday, so by Saturday all rooms cooled down to 15C. The evohome system was able to maintain this temperature untill we returned by frequent requests for low heat (see picture with pink graphs for example of 2 rooms).
1.jpg
When I returned sunday night, I was shocked that I used about 7m3 of gas that Saturday, which is my daily usage the whole week before, when there is a person at home all day heating the living room to 21C, and a family in the evening.
2.jpg
Does anyone has an idea why the usage is this high, while the setpoint temperatures were very low??
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