by LOGIC12 » 20/02/18, 14:06
Hello, It would be interesting to know the exact year of construction of the house.
And also if the bay windows really do not have a thermal break (with the year of construction, we could pretty much know)
It must be said that heating with electric radiators a house of 130 m2, anyway, even with new trendy windows, you will not know much about the bill.
This home must have a CMV. Instead of replacing the windows, I will try to install a VMC double flux not too expensive.
Regarding the windows, have you noticed any condensation? If they date from 86 like the house, it is very possible that they are without thermal break. But the savings would be negligible compared to investing if you changed them.
I know several people who have replaced single glazed windows with high-performance PVC double glazing. result of the races: economy close to zero.
By cons equip your windows with curtains and double curtain, it slows the heat to go to its colder parts. Close the shutters well at night.
Thus the house would not be in depression and the air passages would not be requested at all, whereas with the depression of air caused by the VMC, the air seeks to pass wherever it can.
Is there no chimney in this house? no stove, no insert? nothing ? In general with electric radiators in such a surface, we try to overheat the walls with a few good outbreaks, and the radiators only have to do the maintenance.
In general with electric heating, we do not manage as with central heating, we only heat the rooms used and not necessarily continuously. And inertial heaters, even if they are more pleasant, there is no miracle. It must also be said that if we only look at consumption in the coldest months, the sum is always high, we have to take the average over the year.
Another solution: install a real central heating by radiators (see available energy)
Yet another solution: Install an AIR / AIR heat pump (CLIM reversible inverter) which installs in just one day, with two or three splits (do not be fooled by ducting). consoles (it's the same, but it installs like a radiator, a little above the ground.
it has a yield about 4 times higher than electric radiators, which considerably reduces consumption. In addition, it rises the temperature very quickly, if for example we have lowered the temperature when we are at work. We place one or two splits in the living room (pay attention to the location: put two in the living room, one of which is not far from the corridor, and the third in the hallway of the bedrooms. And that can heat everything up by leaving the interior doors open And at night, if we close the bedroom door, we put the radiator on a bit which will only have to maintain the temperature.
I know people who, in a recent house, have abandoned propane central heating (which is as expensive as electric heating) and who are very satisfied. The bill has dropped.
Inquire, ask to see houses equipped as well. We see such heaters often in banks for example, but also in a lot of houses. These machines have made a lot of progress and work down to - 15 °. And we keep the radiators in case of breakdown, or in case of extreme cold. We have to get there with 3 to 4000 euros all installed. So much cheaper than changing windows and bringing real savings.
Your DPE has necessarily a bad classification because of the electric heaters, because one uses the "coefficient of primary energy of 2,58".
That is to say that we multiply the actual consumption on the meter by 2,58. Because when you consume 1 kW on the meter, you have to produce 2,58 at the place of production.
And also, check that your VMC is not permanently at high speed.
ANOTHER SINGLE THING: It would have been good to see your windows and French windows entirely from top to bottom as well as the air intake that there must be. Put floor-to-ceiling photos for floor-to-ceiling windows.
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