Boiler prices ökofen: why is it so expensive?

[kumkat]

Ah I didn't understand that there were solar panels with it!

I thought solar balloon "waiting" for solar panels.
!

Wait for the answer. It is I who interpret in view of the slate.

depending on the size of the solar tank (150l to 400l) and the number of panels (1 to 4), we would be between 20 and 25 €
but it's still a fork until the guy sets foot in my house ...

[kumkat]

http://www.dlsc.ca

i was starting to worry

anyway it doesn't lend itself to me,
small clay terrain difficult to access and hill movements

[Christophe]

This time I'm chopping !!!

[Did67]

so of course but I do not buy the boiler alone without silo or installation
the boiler installed without the solar DHW should turn in the 15000 €
I don't have a quote and it's better because a guy who gives me a quote by
tel without seeing the implantation would not be very serious ...
it's still a lot more expensive than a conventional gas boiler with good performance.

We are then completely within the "standards":

€ 9 per boiler
700 € the regul
€ 1 of "miscellaneous": circulator, motorized 000-way valves, degassers, fitting kits, etc ... etc ...
€ 2 for the double serpentine balloon ...
€ 1 of screws
€ 2 installation

It is indeed much more expensive, and reasonable only if one consumes approximately the equivalent of 2 liters of fuel. The more we consume, the more the fuel price difference allows the investment to be "recovered" quickly.

What you need to do is an Excel:

investment + annual maintenance x 20 + 20 years of fuel = xxx


And compare the xxx (with of course price assumptions!). From 8 to 10 years old, this changes if you use around 20 kWh per year of heating + DHW (average house).

If you only look at the investment, it will be low-end convectors at 250 € on sale!

The solar part "leads" the project. With a pellet boiler, at the current cost of pellets, it is clearly "not profitable". Pellet heat is not expensive enough! You have to do it out of green conviction, but not to "earn" money!

[kumkat]

This time I'm chopping !!!

ie?

[Did67]

I started to worry: mrgreen:

Don't worry, he has a detector at ökofen, the dedicated friend!

And apart from that, it always causes and heats up with fossil energy! First prize speech category, but last to do something [for example its famous underground storage]!

[kumkat]

And compare the xxx (with of course price assumptions!). From 8 to 10 years old, this changes if you use around 20 kWh per year of heating + DHW (average house).

nice analysis, the last two winters I consumed 21000 kwh and 16kwh (thank you econologie.com)
so right in your calculation. I like the idea of ​​the Excel table all the more since I haven't
not yet all costs in mind and the pellet bill seems much cheaper than that of gas ...

The solar part "leads" the project. With a pellet boiler, at the current cost of pellets, it is clearly "not profitable". Pellet heat is not expensive enough! You have to do it out of green conviction, but not to "earn" money!

yes, that's why it will be for phase 2 only, it's just that it's better to plan it from the start!

[Christophe]

Kumkat, hash = look at his post, I moderated him "violently" but he was warned!

Ah yes did67, I forgot that dedicated was anti okofen, so be careful following this topic!

The .pdf it gives is actually interesting and makes you want to know more: https://www.econologie.info/share/partag ... mrk29Z.pdf

They say that achieved, ok but at what cost? What profitability?

Also say that we need a supplement (10% on paper ...)

This passage should give an idea of ​​the investment:

Picking solar energy
The solar thermal network includes
800 flat solar panels with glazing
single placed in four rows on
the detached garages that are
behind the houses.

Antifreeze liquid, water mixture and
of non-toxic glycol, is pumped
through solar collectors and heated
it doesn't matter if the sun is out. The
800 solar collectors are connected by
insulated underground pipes
carrying the heated liquid
up to the power plant of the
community.

Solar collectors produce
1,5 megawatts of thermal power
during a regular summer day.

That's just the "capture" ... drilling, network and management ...

In my opinion, by housing we must feel the 40 to 50 € investment.

I'm not against it, but you have to count everything!

Who is willing to put this into their heating budget?

Good insulation with a conventional heat pump, or better solar see https://www.econologie.com/forums/pompe-a-ch ... 10811.html , powered by photovoltaic panels or simply wood + solar, this is just as good in terms of overall ecological performance ... for less complex and expensive!

But technically the solution is "admirable" (if it works I still have doubts but we will talk about it in the subject of dede when he deigns to do it!)

[Christophe]

The solar part "leads" the project. With a pellet boiler, at the current cost of pellets, it is clearly "not profitable". Pellet heat is not expensive enough! You have to do it out of green conviction, but not to "earn" money!

Is that so ? I thought there was a good technical reason ...

That solar coupling was almost essential in a pellet boiler (and even more wood in general) so as not to clog it and spoil a lot of calories in summer when the boiler is operating at very low average speed?

[kumkat]

Is that so ? I thought there was a good technical reason ...

the guy I had said he had one for 5p with a 300L
and that the boiler works 45 minutes a day in the morning except during the heating period ...
and apparently without solar ...