Which heating system for BBC home?

[Did67]

is it not rather 7 days of production in 3 winter months?

If that's so. By production I mean "the needle of the thermometer placed in the middle" has moved. Complement by the boiler, of course.

There have been I don't know how many days of compact low gray sky, without the circulator starting! In any case, tens and tens! Just thinking about it, I'm still depressed!

Unfortunately, I do not record and afterwards my memory fails. It seems to me that the first 100% solar day after November, cema was during a period of about 8 days of "blue sky / cold weather" in February ...

[I Citro]

is it not rather 7 days of production in 3 winter months?

I just looked at my paintings, in Bordeaux, winter 2010 and 2011 (from December 21 to March 21), I had, each year only 8 days of zero production, and never 2 days in a row.

On the other hand, daily production is often anecdotal since it is less than 1 kWh / day.
However, average daily production remains attractive with monthly minimums of 3,5kWh / day in November / December which go back to 5kWh / day from January / February, and 8 to 10kWh / day from March.
From the month of April, I exceed 15kWh / day and peak above 30kWh / day from July to the end of September.

I did not note the date, but I cut the thermal back-up of the CESI from the month of April and operated in 100% solar at least until the end of September last year, ie more than 6 months per year without supplement.

Unfortunately, I don't have any monitoring on the top-up to know its daily consumption and dissociate it from the heating consumption.

My CESI produces more than 5 MWh of energy per year, that is, depreciation of less than 10 years at the current gas price.

[Napo dwarf]

frankly doing an expensive installation has no interest

my parents had wood built, it's not BBC but a wood stove is more than enough

for the record, a heating engineer did not build a house (non BBC objective) in wood, being a heating specialist he got the best: condensation heating, underfloor heating, regulation, ...
result he hardly uses it.

He frankly regrets the investment

the electricity will continue to go up then anyway the pac will have whatever happens an operating cost which will increase, then yes surely the wood will go up but by the time that the cost increases more than the electricity and that make up for the savings you make if you install a stove instead of the cap over the life of the cap

that would surprise me enormously

pay a chimney sweep or pay for the maintenance of the cap I don't see the difference

encourage the national wood industry and say a big m ** to the nuclear lobby

[I Citro]

frankly doing an expensive installation has no interest

Money just allows you to have a choice ... from the moment you think about it ...
In general, people who have more money than they need for their essential expenses tend to waste the rest to meet social needs rather than environmental needs ...

In my case, wood requires restrictive logistics that we do not have by consuming electricity or city gas ...
My choices are therefore focused, while I was against, on subsidized solar solutions.

Ultimately, I hope to continue to invest on this path (and others) to move towards always more energy autonomy and less dependence on energy lobbies, whatever they are ...
This requires technological solutions, but I hope to implement them in a more alternative way than the one that is being prepared for us in the form of "Linky smart meters" and other SMART GRIDs ...

It is obvious that the first lever of action is the reduction of waste which at home is called isolation of the habitat and electric displacements.

[clasou]

Bonjour,
As far as I am concerned, I am heating with wood, the only evolution that I envisage would be a mass stove, to smooth the temperature over 24 or 48 hours.

It is true that if I was not so absent 13h / day.
I will not change, at best it is assumed a saving of 30% of the wood, it will come back to me if I do it myself around 1200 euros and I only had 100 euros for heating for the winter.

a + claude

[dap35]

Hello
Another choice (mine) was to install my heating floor circuit myself for a relatively low cost (~ 500 €) just in case, but for 3 years I have been heating myself with a wood stove and 2 cords of wood per year (not being in BBC).
CA would perhaps make Madame wait while saying that if necessary we will power the underfloor heating later.

I laid this floor telling myself that maybe one day I would be fed up with wood and that there will be a non-nuclear energy that is easy to implement. In addition I intend to put thermal solar panels for DHW or even power the underfloor heating. But it's possible that I never use it

In the meantime, my priority is to further improve the insulation and try to recover free energy (hot air under PV panels).

Dap

[dodo]

For me the most economical solution for heating is wood (logs or pellets which has the advantage of automation) supplemented by a small solar thermal installation for DHW and obviously all with an interesting climate, c is to say direct solar. If recent house and well insulated and well designed (that's BBC right?) Not worth the central heating: air conditioning and central pellet stove is enough!

it is true that on bbc, the heating bill should be lower, so the investment should also be less substantial.

on the other hand if we start on thermal heating, it must go through a heated floor and the investment will be of the order of 25.

[dedeleco]

Between a poorly insulated house from the 70s and a real waterproof BBC, there is a factor of more than 4, from more than 200KWh / m2 to 50KWh / m2 in consumption.
So invoice divided by 4.

Otherwise, ecological and the cheapest, is burn wood and plants free (picked up and abandoned everywhere, up to a recycling center as I see around my home, on 900Km, and dried in the summer sun and kept under dry shelter) in a suitable insert or stove, with distribution of hot air in the rooms, efficient and very inexpensive compared to a heated floor, especially on old houses.


Low investment, free fuel price and exercise to pick up, good for your health, especially if you saw by hand !!
Also thus, I decrease the pollution suffered taking the plants with which my neighbors smoke for days burning them very badly wet under my windows !!!
Consumer invoice divided by infinity, because vegetables gratis, in quantity much higher than my needs (I still see one of my houses of the trees of the storm at the end of 1999, rotten instead of being burnt at home, as I did partially by cutting them at home and at my neighbors for free, 20m trees in windfall, the pruning of a tree being 800 €, while with a little mechanical intelligence, we do it for free and less danger than the pros, who take risks that I refuse by spending a few more minutes, no chainsaw in the tree, double roping, felling branches by pulling ropes away from the tree, etc.) !! !!

Seen this wasted free wood, and also the summer solar heat wasted on our roofs, I am against paying very dearly for pellets which are a temporary technique solution studied for spending (unless you are rich and reluctant to pick up and saw wood).