Question: problem of oversized granulated boiler?

[blogophil]

Bonjour à tous

Here is the continuation and the end of the adventures of Blogophil and his boiler.

I was satisfied with a fax sent this Monday at 8:30 am. At 8:40 am, I received a call from the after-sales service manager at SB Thermique. He tells me that there must be a problem with the settings and that he is sending me a technician for this Friday morning.

The technician came and changed the settings suggested by dirk pitt. He basically reduced the fan speed to the minimum and especially the first column which also indicates the quantity of pellets to be injected. I seem to have a very calorific pellet. I may not change supplier this year

As a result, the flue gas T ° no longer exceeds 140 ° even at full speed. The technician also did not want to reduce this value too much because of my chimney flue which is about 12 m to avoid condensation problems.

Instead of regulating 5 minutes, it now regulates for 30 minutes with 5 minutes to start. The focus T ° stabilizes around 480-500 ° in minimum regulation instead of more than 600 ° before. In addition, it is 15 ° outside, so there is very little demand.

So I can reuse Automatic mode and that's not bad because it only starts up every two hours.

As far as I'm concerned, I think the case is resolved. It remains to be seen with lower T °, ​​but that should just help to shorten the time between two ignitions and lengthen the operating time a little.

I took the opportunity to discuss with the technician. Overall, they suffered a lot last year with problems with bistres and the quality of pellets or wood chips.

The manufacturer made a special France extractor (the one I have). SB Thermique had to send samples of French pellet so that herz could develop this extractor. In any case, he confirmed to me that there was a Franco-French problem with the quality of the pellets. He told me of horrors about manufacturers who used moldy sawdust to make their pellets and added lots of glue to keep them ...

Overall, given their responsiveness, I would continue to recommend HERZ boilers while also advising to always take the size smaller than that recommended ...

Again thank you all for your help.

[jean63]

The manufacturer made a special extractor for France (the one I have). SB Thermique had to send samples of French pellet so that herz could develop this extractor. In any case, he confirmed to me that there was a Franco-French problem with the quality of pellets. He told me horrors about manufacturers who used moldy sawdust to make their pellets and added lots of glue to keep them...

Well done !! Christophe nevertheless AFFIRMED that there is no such thing as pellets full of glue

[Philippe Schutt]

let's say that shouldn't exist, and if you have Din + certified pellets, you are sure that they are free.
BUT, if you don't see the Din + logo printed on the bag, you may wonder, because we've seen it all: glue, paint, nails, sand and even pebbles etc ...

[Did67]

... if you have Din + certified pellets, you are sure that they are free ... because we have seen everything: glue, paint, nails, sand and even pebbles etc ...

For all readers, pay attention to "certified Din +" and not "quality Din +" (or another vague term that is worthless). Only certification goes hand in hand with checks by an external body ... And only the Din + specifications provide for unannounced checks (not Din certification!).

However, even with Din +, there were problems in Germany. The certifying body is not there every day, and we are not formally sheltered from a loader that drops a little soil, etc.

It is therefore the maximum guarantee, even if it is not absolute.

Finally, namely at least for Alsatians, a certain number of German manufacturers have signed a protocol with their union and manufacturers of boilers, protocol which defines the rules according to which the supplier takes back the pellets if they were not in conformity. ..

[Did67]

I seem to have a very calorific pellet. I may not be changing providers this year

:D

Absolutely possible. It is sufficient that :

- the pellets are very very dry (less than 8%)

- made from softwood (contrary to what many people think, softwood pellets are more energetic, because there are all the resins ... Due to compression, they are as dense as those from hardwoods). ..

[jc-tergal]

make sure that the best pellets are made from softwood, and if possible from completely bark trees (less ash and lower humidity)

Since I'm professional, I received an email from a guy who has a forest with lots of willow and thinks I can sell his trees to make pellets let's get over the guy's ignorance of how to make a pellet, but to offer this shit for pellet is to make fun of the world

I had proposals for pellets from Indonesia (birch or a mixture of whatever) bcp from eastern countries ... Anyway we can have everything and it is important to have a supplier who knows its product, its material and the origin of its wood ... And it is clear that I do not work with French suppliers who do not give a damn about the world from a commercial and qualitative point of view ...

[Did67]

make sure that the best pellets are made from softwood, and if possible from completely bark trees (less ash and lower humidity)
...

So we agree. This is why I insist on it, too many people do not know it! (everyone's reflex is that hardwoods are better - which is true for the log, because the wood is more dense, but no longer plays for the pellets, which are compressed!) ...

This can be recognized by the fact that the pellets are very clear. And a little to the smell (resin) as well as to the sawdust which comes off the pellets.

In short, the ideal is pellets made by a large sawmill processing conifers (they remove the bark before sawing) ... Hence the interest to browse the manufacturer's site, when he has one !

[toto65]

Hello,
where can we find the din + standard in French?
could someone show it to me in MP?
I don't need the whole standard. Just the requirements on the raw material.

For example: wood coming from HT treated pallet, is it good or not?
thank you, talk to you later

[Philippe Schutt]

there is a table with the standards here: www.alsapoeles.fr/pellets [Url] [/ url]
As far as I know, no chemistry in the pellets.

[toto65]

thank you Philippe
the treatment of wood for export (pallets) fall into two categories.
HT means high temperature, there is no product. and DB chemical treatment.
For the moment I tell myself that yes it is possible but I have not read the standard and I do not speak German and not English well enough. (and I don't have € 49,00 to swing to satisfy my curiosity).
I put the links to you as soon as I find them.
http://www.boutique.afnor.org/NEL5Detai ... ts=6961607