Olsberg

[jckreig]

I am looking for some advice regarding this stove that I want to hook up in my home. It is an Olsberg, made in Germany, burns lignite briquettes and wood (per the manufacturer), manufactured in 1976. The firebox is small and I plan to burn wood in it, so I will be cutting mini-logs or chunks of wood to feed into the small door. It does have a large access door on top, but I assumed it would only be for cleaning or assembling a starter fire. Here is all info from the back plate:
stove type 11/482/1
din-reg-nr 770L60D
heating capacity 90/65/50 (m3)
nominal capacity 5,85000 (Kw)
serial num 4L 11 41727

This stove vents out the back and here are the problems. The outside diameter of the exit pipe is 4 5/8, inside would be around 4 1/2 as the walls of it are around 1/16th thick (I did not measure the inside exactly). I have to vent outside the wall of the upstairs of the house (walk out basement in back and walk out to grade upper level in front). I have no choice on this as there is a very low pitch rubber roof above and I am not going through it. The information I seek is what are my solutions for pipe, as I have not seen pipe in this diameter? Could I have a transition piece fabricated locally to get it to a standard pipe size? What would be the specs on the transition piece in regard to metal thickness? Could I jump to just 6" pipe for the rest of the run? I want the stove as close to the wall as possible. I understand I need a "T" cleanout, but do I need double wall pipe for the entire exterior run? It will have a small eave that it will pass within 6 inches or so from the outside, so I thought the double wall might be for the best, as well as for a better draw (is that correct?). If this stove is set up in a corner of a room, what would you estimate to be the side clearance and where could I get insulators and some sort of metal to reduce the clearance demands. I could find this online, but I'm not sure what it is called. I would like to spend the least amount of money on the chimney while it still be safe. I know the draw won't possibly be ideal, but we are going to see how it works. Thank you for your advice.

 

[dougand3]

Welcome to the forum, JC. Generally, if you don't have manufacturer specs - you need 36" clearance to combustibles to satisfy codes and insurance. Plus many manufacturers allow tighter clearances if you build a noncombustible wall surrounding stove (metal 2x4s, cement board, tile with 2" airspace). Is this a family heirloom you don't want to part with?

 

[jckreig]

Not an heirloom, but the stove was free and I've been dying to get into heating some of my home with wood but I do not have the money to spend on the nice stoves. This stove has gaskets and I don't see much junk made in Germany, so I'm hoping it will be a decent stove. Being that it has a spacer plate on the back of the stove (galvanized), what do you think the spacing would be? I do intend to do some sort of reflector around the stove, but the studs would be wood. Anything else I can accomplish over that such as cement board, tile, etc. Would it work to use some insulators over the wooden studs and then cement board and tile over that?

 

[dougand3]

Even if you have an air space shield - I know of no rules/regs that reduce the 36" clearance for undocumented/untested stoves. (which this stove is w/o a paper trail). And in a room - that is a LONG way. I understand this stove was free but this could become the most expensive free stove in the world - cut corners on clearances, then house fire, then insurance says...."Woah, here!" I started down the cheap boxwood stove route before...and then after reading and learning about stoves - went with an EPA stove and manufacturer with clear specs. I've been where you are and I bet I'm cheaper than you are! After I read and gained knowledge about stoves, pipes, chimneys....I abandoned the free/cheap stove route.

Some points.

A new EPA stove is more efficient - uses less wood and pollutes much less than your "smoke dragon" will.
Firebox will be decent size - sounds like you have a tiny firebox = more cutting for you.
Specific instructions come with new stove to self install safely.
Pricewise - check your lowes and homedepot. An Englander NC13 (or Summers Heat brand name) can be had for $399 clearance price to $799 full price.
A self install kit - Selkirk Supervent is $350. Read about install here - (broken link removed to http://www.selkirkcorp.com/supervent/) Add Class A chimney (thru attic and roof) at ~$24/ft. Single wall stove pipe (up to ceiling junction) is ~4/ft. So, a safe/in code chimney system will cost a minimum of $650.

Also, another less expensive stove place is Northern Tool - there is one northeast of Chattanooga on I-75, if you are near there.

 

[Freischutz]

Hello - I couldn't find the specifications for DIN 770L60D . However it looks like Olsberg is still in business

(broken link removed to http://www.olsberg.com/wEnglisch/standard/unternehmen/wir_ueber_uns.php?navid=105)

Check the cast iron and chimney stove sections of "Products". The English looks good, so an e-mail might produce results.

 

[pikeybarsteward]

Hiya, this is an old thread so probably not checked too regularly now but still ......I own and run a seventies Olsberg of this design .They are truly fabulous burners ,thermostat control , baffle ,hot plate and german craftmanship make this model a joy to run . The picture shows more than one ,I m very jealous ,I d love another ! They are suprisingly efficient and produce very little ash ,I ve only ever burnt wood in mine coz we dont have a tradition of Lignite in the home in the UK but it was used for anthracite for many years before I acquired it .Do u have the Owners manual,it sounds like you do from your post ,I d love to hear what they say .I ve not found spares for it yet online .I suspect I ll be taking a trip to germany to scour the fleamarkets for fires ,they dont appear to be sought after items in germany but theres still plenty of them about .The top door u describe is a hotplate ,I dont think it was designed to be opened but some german models were(the coal burners ) .Many german stovemakers still offer wood/lgnite kaminofens in the 4-8kw output range .I have the 4kw little brother to the pictured fire and it is quite simply the easiest fire I have ever used .