Outdoor Wood Furnace Info

All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: bill birks on February 06, 2018, 06:55:34 PM

Title: down draft
Post by: bill birks on February 06, 2018, 06:55:34 PM
 are all down draft boilers - gasification
Title: Re: down draft
Post by: mlappin on February 06, 2018, 08:46:39 PM
The only updraft gasification boiler I know of, and I say this again, that I know of, was the one from Heatmor.

I’ve never personally seen one.

We have a festival over Labor Day in the county south of me that routinely draws 400,000-500,000 people a year. In 2015 the Heatmor dealer had nothing but conventional there. In 2016 when I took a G100 and set up he had nothing but conventional there. In 2017 when I took the Heatmaster show trailer and a G100s and ran the G100 in the trailer he didn’t even show up.
Title: Re: down draft
Post by: wreckit87 on February 07, 2018, 07:23:35 AM
Crown Royal makes kind of a hybrid using 2 fans. There is the regular 150 CFM draft from underneath, pushing air up through the grates to burn the wood. Then there's also a smaller 60 CFM fan that feeds an injection tube at the top of the firebox blowing back down. This burns up the gases that are suspended in the firebox without sending them up the stack like a typical conventional
Title: Re: down draft
Post by: E Yoder on February 07, 2018, 09:12:00 AM
Depends what you mean by gasification, some would be complete controlled reburn (downdraft type), others like you mentioned will reburn a percentage of the gassses especially during the late part of the burn when the coal bed is exposed. Also there are a few updraft reburning units that use a catalyst.
The downdraft units (various brands) and a couple of catalytic models have passed EPA, an updraft with no catalyst hasn't yet that I'm aware of.
Title: Re: down draft
Post by: bill birks on February 07, 2018, 11:36:05 AM
 thanks for all info - my stove is a Sequoforfyah big boss 2500 don't know much about it - just purchased it cheap- its a down draft has 6 pipes for exhaust coal my best to burn then - company went of busniess - cant find informantion  on it -thanks again
Title: Re: down draft
Post by: E Yoder on February 07, 2018, 01:23:09 PM
Post some pictures, maybe we can help.
Title: Re: down draft
Post by: bill birks on February 08, 2018, 06:14:15 PM
 having problems sending pics -maybe it me
Title: Re: down draft
Post by: E Yoder on February 08, 2018, 06:44:57 PM
Are you downsizing? I have no trouble since I started downsizing to 25%..
Title: Re: down draft
Post by: E Yoder on February 10, 2018, 08:27:33 AM
hmm.. I'd like to see inside the firebox, reburn area, exhaust tubes, etc. Hard to tell anything from the outside. And where do the lines hook up?
Title: Re: down draft
Post by: bill birks on February 10, 2018, 09:06:02 AM
 hope these willwork- tkanks
Title: Re: down draft
Post by: E Yoder on February 10, 2018, 10:40:31 AM
Is there a nozzle or slot in the floor of the firebox? Does the last picture show where a draft fan mounts up?
Title: Re: down draft
Post by: bill birks on February 10, 2018, 11:13:47 AM
 yes there is slots in fire box- yes the blower mounts in last picture -thanks for interest
Title: Re: down draft
Post by: E Yoder on February 10, 2018, 11:49:03 AM
So looks like you'll have make up some kind of fan/solenoid flap run by a temp control to control the draft. .. the details of how the airflow works is difficult without knowing a lot of detail of how it's constructed.
But in general if you understand the airflow you're 75%+ toward making it run well.
Title: Re: down draft
Post by: bill birks on February 10, 2018, 04:49:40 PM
ok wants your opion of stove - plan on removing all covers and testing for leaks - guy I bought from said it 24 hours on fill up with 2 zones house and building -so if no leaks see how it goes with somenew parts-thanks again
Title: Re: down draft
Post by: E Yoder on February 10, 2018, 07:35:57 PM
I don't know much about that particular model so I hardly know what to think of it.. looks in need of some maintenance. . The former owner might be some help?
Some of the early downdraft models were kind of "unique" as a lot of manufacturers were in the learning stages. But I have no idea on that one. Have you checked in with Badger?
Definitely check for leaks first.
Title: Re: down draft
Post by: bill birks on February 10, 2018, 08:32:31 PM
thanks again for info