How not to ruin heating?

[oiseautempete]

sspidd

You must have slept a winter in such an old house or castle with walls at the base of 1 m in the south west as me child in winter, without heating, to find that the ground soil at the annual temperature 13 ° C to15 ° C conducts its heat through the walls as in a cellar or cave and can do without heating if we accept this average annual temperature!
In the middle ages we lived almost without heating!
It's a simple form of Canadian well.

Our modern breeze block houses are an aberration, see the passage bury the house on
http://www.fiabitat.com/construction-ma ... atisme.php
www.fiabitat.com who explains it well !!

This remark is valid in regions with mild winters, but in the North and North East, the ground can freeze in winter on 1m of thickness ... For heating you will iron ...
To benefit from a constant temperature in the East, it is already necessary, for example. go in the Maginot line, like the Fort de Schoenenbourg which I visited in the middle of winter, long before it opened to the public (a friend was participating in its restoration): it is 13 ° all year round, but we are at a minimum 17m underground (designed to withstand the Grosse Berta, a 420mm howitzer, the most powerful in the world at the time) .To fight against humidity, the troops' quarters are heated, electrically ... elsewhere everything is electric, even ... a machine for peeling the potatoes!
For the record, the fort of Schoenenbourg is the only fort Maginot which could not be taken in combat by the Nazis, despite the use of all the heavy means at their disposal, including air. surrendered 6 days after the armistice, by order of the French high command.
The Germans were very impressed by the modernity of the installation and its extraordinary operational efficiency, moreover in the team of volunteers who restored the structure, there are almost half of Germans and Swiss ... Some veterans who served in the work have, by their memory, helped in the restoration of origin ...
If you pass in the area it's a thing to visit ...

[bernardd]

You must have slept a winter in such an old house or castle with walls at the base of 1 m in the south west as me child in winter, without heating, to find that the ground soil at the annual temperature 13 ° C to15 ° C conducts its heat through the walls as in a cellar or cave and can do without heating if we accept this average annual temperature!

And this would be one of the main cause of the increase in the mass of humans: maintaining the body's temperature requires more energy than average physical exercise, and uses fat specifically for this purpose.

[dedeleco]

Read about old buildings, modern methods are wrong, to calculate heat loss !!
Thermal performance of old buildings made from natural materials
http://www.citemaison.fr/thermique-bati ... elles.html

We forget the effects of evaporation repeated condensations of water vapor in perspiring damp walls and their thermal effects, a bit like a foehn effect which heats the winds that have become dry ?????
http://fr.wikipedia.org/wiki/Effet_de_foehn

[bernardd]

Very interesting ! I always thought that a good farm, with the hay in the attic, had a great vibe with little added heat.

This is interesting information for the author of this thread who wants to improve his house in Avignon: it confirms that he has more interest in investing in the improved use of the sun than in the insulation, it is the non- use of the sun which is a waste.

[Christophe]

To benefit from a constant temperature in the East, it is already necessary, for example. go in the Maginot line, like the Fort de Schoenenbourg which I visited in the middle of winter, long before it opened to the public (...)

Question military structure with high thermal inertia there is also the dome in Saint-Omer which is an interesting case thermally ...

It was supposed to be a V2 launch pad, it was never finished and the dome that was supposed to be covered with X m of earth never was, so the sun bumps on it quite a bit in winter. It is 5m thick in (very) reinforced military-type concrete.

We visited it at the end of September, it was still near the dome (high point), almost 30 ° C I believe. I asked an employee for some explanations and he said that it was indeed the inertia of summer and that there was the same phase shift in spring while the thousands of tons of concrete warmed up. .

We saw a V2 engine (an original), they were fueled with alcohol methanol ... which shows that the idea of ​​alcohol fuel is not new, eh!

Power: 600 hp anyway when taking off (but not very long of course ...).

Website: http://www.lacoupole-france.com/

[aerialcastor]

Read about old buildings, modern methods are wrong, to calculate heat loss !!

It's very summary ...
The "modern methods" work very well on condition that all the parameters are taken into account.
And this is the problem, regulatory calculation software (RT2005) take very (bcp too) approximately certain parameters (inertia and solar gains in particular) and completely zap many others: color of absorption surfaces, heat exchange between the different rooms (rt2005 considers the whole building as one room) ....
So it is sure that in these conditions the calculation is not worth much.

On the other hand, if we use dynamic thermal simulation, we can enter absolutely all the parameters very precisely, and we simulate with meteorological data with a step of qq min and no longer with monthly averages.
Ah that moment the results are very close to reality.