Quote:
Originally Posted by SVOboy
We have peak/off peak here too. However, I don't think out thermostat is programming enough to handle some serious P&G, we just let it go down to 61F at night,  |
I got some consumption notation this summer and the average night consumption in 25 days was between 9 and 10 kWh/night (mainly water heater, dish washing machine and computers...).
During the last month before we start the heating system during off peak, the average night consumption was between 10 and 11 kWh/night. This shows that during the night the radiators nearly don't switch on. I wouldn't be surprised if the difference comes mainly from the water heater as the water it gets is colder and the temperature difference (so thermal leaks) between hot water and inside air temperature is greater.
Since we start the heating system during the last 1/2h of off peak, we have a 13 kWh consumption by night which correlates the 6kW during 1/2h. This morning I looked at the counter when the heat system stopped and the day consumption was at 9kWh which is 90 minutes at 6kW.
I'm working from home this week so I'm always at home now. I let the programmers go on "cold" mode and the temperature got down by 3°C in 5 hours while the consumption is only at 12 kWh (my wife launched a laundry machine which is 2 kWh iirc).
I don't thing my radiators can be switched on partially. They are at full power or switched off. So when the programmers switch from "cold" to "hot" and back, I think it's some pulse 'n glide moments with very big changes in temperatures (>3.0°C), so the radiators don't change their state during hours...
During a period ("cold" or "hot") to keep the temperature "constant", the radiators are switching on (100%) and off (0%) but I don't think they are partially powered, so this is a pulse 'n glide moment with very small changes in temperatures (<0.3°C), so smaller durations in each state.
Denis, who gonna put the living room's programmer on "hot"...