Wood pellet boiler

[laurent68]

Help !!

I am a priori, the only unfortunate owner of a wood pellet boiler brand OERTLI in Alsace.
This boiler in service, in a new house of 170 m², since November 2006 has burned more than 8 tons of pellets in one year, with an average of one ton per month during the winter 2006 / 2007 yet particularly mild.
The problem with this boiler is that it runs at a constant temperature, regardless of the outdoor sensor, the temperature in the buffer tank, or the actual consumption of domestic hot water or heating.
Having complained to the manufacturer several times I was always told that everything worked perfectly and that I had to learn more before buying this product.
I am looking for another proud owner of an OERTLI wood pellet boiler or anyone else who can give me technical advice or advice on recourse.
I'm waiting impatiently for your answer.

[jean63]

Do not know but it's scary your thing ...... it looks like a problem of regulation, maybe it's all stupid as a problem

Talk to your installer, he must know why him?

[gegyx]

Oertli / OCBP pellet boiler
The OCBP boiler is a pellet boiler (also called pellets) for hot water central heating from 4 to 22 kW, ideal for a single-family house that meets the requirement of fully automated operation.

Fully automatic operation
Equipped with a pellet burner whose operation on / off is fully automatic. The principle is simple: the burner is equipped with a cup on which the granules fall. The firing is ensured by a heating element that ignites the granules and the combustion is maintained by a fan.
The adjustment of the power is ensured by the quantity of granules which fall on the cup. When the thermostat cuts off the pellets the fire goes out.

The options necessary for the use of the boiler are:
- feed screw of the wood pellet burner
- pellet store (or pellet silo)
- regulation for heating circuits

Power: from 4 to 22 kW
Dimensions (mm): H 1410 X L 590 x P 747
Curb weight: 260 to 305 kg
http://www.oertli.fr/produits/gammes_de ... nules_ocbp
----
In this link we do not speak of sanitary water.
- According to what you say, it's the thermostat?
- Maybe 22kw is insufficient for 170m²?

[Colmant]

for the appeal you go a little late: + one year

you must be able to play on the speed or the frequency and duration of feeding of the burner

I do not like the ignition system by "heat gun" at all

8 tons so 16 about steres of wood?
do you make an economic assessment

[Did67]

Help !!

I am a priori, the only unfortunate owner of a wood pellet boiler brand OERTLI in Alsace.

Always a bad sign. For you, it's too late, but for all those who are thinking about switching to pellets, a first rule: beware when the installer or the importer cannot offer you 1 or 3 round trips because this means: 4) few boilers installed, so risk; 1) attention to after-sales service (competence of installers, parts stock...). I formally discouraged (even if one should neglect the hypothesis of an engineering manufacturer who lands on a market, in which case its references are in Germany, Austria or Sweden ...).

Well, Laurent, you're too late!

This boiler in service, in a new house of 170 m², since November 2006 has burned more than 8 tons of pellets in one year, with an average of one ton per month during the winter 2006 / 2007 yet particularly mild.

Except to live in a sauna permanently, one is above any acceptable standard.

The problem with this boiler is that it runs at a constant temperature, regardless of the outdoor sensor, the temperature in the buffer tank, or the actual consumption of domestic hot water or heating.

Weird! The probes were installed with the boiler? Is there a three-way control controlled by the boiler, installed at the same time?

If the answer is yes: two things one. 1) Where the boiler is intended for, it has on-board electronics to ensure all these regulations, and it is probably your installer who is notoriously incompetent (for this type of boiler, it may be good elsewhere); it may be a question of parametrization (complex, I did not understand anything when my installer did it!). It's a bit of Bill Gates !!! 2) Where the boiler is a very primitive model not to say medieval (a bone old log boiler hastily converted to pellets, with a regulation by the only temperature of its water supply), and there, you made yourself I say that because I saw one again this fall in a big make-up store.This is always over the counter !!! Always remember that to rip a client is not a crime! It is giving an erroneous information that is!

In hypothesis 2, it is necessary to consider a hydro-accumulation, with a 3-way automatic regulation controlled by the probes. If you have room. Clearly, since your boiler does not regulate, you make it flare up and heat up a "stock" of hot water. You feed your heating by gradually "spiking" this hot water to heat your house. On this conf, Christophe should be able to tip you off; he has such a facility.

Having complained to the manufacturer several times I was always told that everything worked perfectly and that I had to learn more before buying this product.

Oops. Bad sign !!!

When a manufacturer reacts like this, it looks more like the second hypothesis above!

For all those whom Laurent's misfortune calls out, know that there are boilers that regulate very well! I have documentation of Germanic or Austrian origin which allows to compare the boilers on a lot of parameters (systems, yields, emission rates and sometimes cost). I will also see if Laurent's is there. I have just switched from fuel to pellets and I see no difference, except for greater inertia (the temperature "rises" less quickly in the morning and "drops" less quickly in the evening. 'one or two hours. FYI, I work with heated floors). For consumption, I cannot say yet, but I am confident in view of the number of automatic "refills" of the intermediate silo

[Did67]

Help !!

I am a priori, the only unfortunate owner of a wood pellet boiler brand OERTLI in Alsace.

I come back after a tour on the Oertli site.

For you, Laurent, this looks like Hypothesis 2 from my previous post. A classic boiler "converted" to pellets, because it is fashionable. We do not want to miss this commercial "niche" without having developed a product designed for pellets.

For all those who still think and could be discouraged, or who could suddenly doubt, some advice:

1) On the Oertli site, we could have a good ear: 1 pellet boiler among 36 products, fuel, gas, wood ... A priori, bad sign. One nuance, however, to be fair and honest: some oil / gas specialists subcontract the manufacture of "their" pellet boiler to specialist pellet boiler manufacturers [Austria in general] and only paint them in their color. and stick their mark; It is obvious that then the quality and performance are at the top (equivalent to the original product). Ex: Viessamnn, Buderus, etc.

2) We can clearly see in the photos that the pellet feed is "reported" ... I advise you to think twice when you see this type of assembly. This is what I was referring to in my previous post when I mentioned a "boiler in a DIY store".

3) No indication on the Oertli site regarding regulation, presence of Lambda probes or not, combustion air supply mechanism, yields ... So here too, be careful! This does not seem a concern of this brand.

4) The "massive" side (with ceramic plates in the combustion chamber) may seem reassuring. Wrongly. Because, this generates an inertia which is not favorable to regulation.

But here too, nuances: some Austrian manufacturers however arrive at a very good result, but with significant electronics and regulation at all levels (air combstion, pellet feed, etc ...) (see the site of Guntamatic or Hargassner - the latter produces one of the best pellet boilers, with a ceramic hearth). So do not always dismiss it.

But many pelletists have metal combustion chambers, which are similar to those of oil or gas boilers ...

In short, do not believe a competitor who "breaks" a "metallic" model on the grounds that ceramic is serious. Remember that all modern gas or oil-fired boilers have metal combustion chambers, with very very high combustion temperatures and corrosive gases, especially all those which swallow fuel oils rich in S, so SO² which gives, with water, sulfuric acid !!! Ceramics are the heritage of post-war coal boilers.

So we see that there are two approaches: the manufacturers who have left wood / coal boilers with ceramic chambers and those who have moved away from modern fuel / gas with metal chambers.

In the former, if the boiler has been specially developed for pellets, we achieve very good results. Among the best (see the two brands mentioned - I do not advertise, I have no interest). Therefore do not dismiss them systematically.

Just beware and try to find out if this isn't an old modified machine! If it is a "summary transformation" by adding a screw that pours the pellets, there is a risk of disappointment, both in terms of yield and emissions (we have passed this question - important - in silence) and d ability to regulate.

In the latter, the installation may seem "light". Competitors will criticize this "lightness" (I was told about "casserole"). Know that there are tens and tens of thousands of them working. With yields among the best (see for example the Okofen site).

And know that if ever this "pan" was not durable, it can be replaced without tools and that the prices are reasonable (the Okofen burner, in stainless steel, is worth around XNUMX €). It is therefore insignificant in the maintenance of a boiler throughout its life ...

After struggling with these alternatives, I finally did not hesitate to adopt the second technology!

Last point: do not believe that we can have for 4 or 5 000 € a boiler of high technology! Models that reach nearly 95% output, which regulate perfectly, which pollute little are within a price range of 8 000 to 11 000 € (I am talking about the price of the boiler). So there too: below, beware the scam (possible) and the disappointment (probable) !!! We would all want a BMW today for the price of the 4L of our youth ...

[dirk pitt]

very good did67 analysis
actually, the boiler oertli in question is an adaptation with an additional granular burner (of another mark, I think) in addition the regul indicated by laurent is not planned to pilot a valve three ways !!!!
on the other hand, it has a storage tank of 750litres. I do not know how the exit of the balloon is regulated towards the radiators ???
I found the doc on his boiler and I think I can help if it's only regul problems because I have deepened the subject on my OKOFEN (not far from a full winter to settle all the parameters impeccable) the installer having been satisfied with the factory parameters. but this winter is nickel and the cons seems to be very reasonable (I think less than 3 tons for 110m² isere)
factory parameters are all-purpose, but often poorly adapted to particular conditions.
and it's not to say bad but when the installer touches it, often it's worse. I have the example on a stove edilkamin pellet that I bought used and whose parameters had been modified in spite of the common sense (very bottom, because it did not heat enough)
it seems that laurent68 does not consult the site nor its MP for the moment because it did not answer to my MP

[Christophe]

Uh, what's the nominal power of the boiler? It may have been (oversized) ... but at this point it is malpractice.

On your quote, there was an estimate of annual consumption or at least you had to ask before installation, right?

[andre-34]

Hello,

Can anybody tell me what is spread in the atmosphere by heating like this?
Is it just wood that already has to swing a lot of stuff
In the winter I can not open the windows when the weather is nice or put clothes on the outside because of the neighbor's wood-burning boiler that burns anything (I only switch on my clothes as from 15 / 16 ° c and it does not exceed 18 ° C)
Or can there be something else like residues in these pellets, especially glues?

[Christophe]

Ralala that negative and unfounded prejudices about pellets ... here is an article about standards and properties: pellet properties and standards

Their manufacture is obtained by FRITAGE thus 0 glues or binders.

Now it is not certain that there are not small malignant (small producers) who put waste wood treated in their pellets ...

It is likely to happen especially in the future when the demand will increase to see subject Pellets prices

Here it reminds me that I knew a "green" who burned old parquet ultra treated in his fireplace so good ...