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[CountryBoyJohn]

How do they expect manufactures to get even MORE efficient if we are already at the lowest stack temps we can get?  Are they supposed to filter the smoke after that?  This is nuts (as if we already didn't know that!)

[Scott7m]

How do they expect manufactures to get even MORE efficient if we are already at the lowest stack temps we can get?  Are they supposed to filter the smoke after that?  This is nuts (as if we already didn't know that!)

That's the point....    it's a power play,  they really don't care about the enviroment

[yoderheating]

But they are not even going after efficiency right now. You could run a gasser with no heat exchange tubes and pass the test I guess.

[mlappin]

How do they expect manufactures to get even MORE efficient if we are already at the lowest stack temps we can get?  Are they supposed to filter the smoke after that?  This is nuts (as if we already didn't know that!)

They really don't care if it is impossible, people who burn wood are too independent. Government can't get em on the tit until they find a viable way to take away yet one more aspect of being self sufficient.

[yoderheating]

Last night is was in the teens here. Filled the furnace up about 2/3 of the way which is a couple arm fulls of split wood. Went out this morning to a bed of coals and one stick left. Through in about 8 small pieces and it started gassifing immediately. I think I'm burning less than half of the wood I did with any of my conventional furnaces I've burned over the years.

[mlappin]

Last night is was in the teens here. Filled the furnace up about 2/3 of the way which is a couple arm fulls of split wood. Went out this morning to a bed of coals and one stick left. Through in about 8 small pieces and it started gassifing immediately. I think I'm burning less than half of the wood I did with any of my conventional furnaces I've burned over the years.

Thats the reason I'm looking at replacing mine with a gasifier. I have time to cut wood, but also have a lot of other things that time could be spent on.

[Boydz]

Soooo.... What about efficiencies ? Meaning, If I am using a 10Ke now and wanted to switch, would a G400 be enough ? Its about 1/2 the BTU output of the 10KE from what I remember in the Documents.

Would this thing just be running non stop then and burning more wood anyhow? I sure don't feel like I'm using 500kBTU of the 10K but when its super cold, it doesn't shut off much heating 3 separate space and a total of around 5000 sqft. Granted, 1/2 that # is well insulated space and kept at only 45deg.

Is this new design more or less picky on wood type, size, moisture etc ? I like the idea of the unit, just concerned that it may be more of a pain to prep the wood and all.
What about costs ? Are they expensive for the gassers ?

Thanks for sharing all your experience.

[yoderheating]

 I really hate to comment to much on a G400 simply because I've never even seen one much less watch one in action or use one.
 It seems from burning this G100 that the BTU output is about what they say it will, I am confident it would not put off as many BTU as a MF3000e. But then again you are also looking at a firebox about 40% the size of a MF3000e. My burn times were a bit longer with a MF3000e but I'm now burning half the wood. It seems that these gassifiers work best when having to work hard, in other words you need a smaller stove when using a gasser and then fill more often.

[yoderheating]

 Update for this morning. I was a little worried about last night because I had put in one chunk of wood ( maybe 20 inches long and 14 inches wide0 that almost filled the entire firebox yesterday about 3pm. A little later that evening I was able to add a couple small pieces above it but I was worried about that one big one but you never know until you try.  I went out 12 hours later this morning to find a nice bed of coals. Stirred it up with the poker provided and added 3 sticks of wood for today. Last night it was about 15 degrees here. 

[hondaracer2oo4]

So the G200 would be equivalent to somewhere between the mf3000 and the mf5000 in BTUs for a 12 hour run time correct? Most people I think need a MF5000 or equivalent size for their btu load and a 12 hour run time. Most people don't want to be married to their boiler and have to feed it every 8 hours. I think that is why  Europe does batch burning with large water heat stores. They run their gassifier wide open at night for 4-5 hours and heat up their heat store to last until the next night.

[yoderheating]

As a comparison I burned a MF3000 several years ago and could easily get 12 hours of burn time on my home. I think the G100 is slightly less than what I did with that. I don't think I would want to run more than 12 hours with this G100 when its below 20 degrees like it is now. But keep in mind I'm also burning half or less wood then I did in a MF3000.
 I haven't run the new style G200 but if it operates similar to this G100, and it should, I would say you are right. It should be somewhere between a MF3000 and a MF5000.

[yoderheating]

Also we sell more MF3000e models than anything. For a 2,000 sq ft home that is the real trick. I could get 14-16 hours on it at my home. For the normal home of 2,000sq ft to 2,500 sq ft I would think the G200 would be perfect for 12 hour burns. I would size the G100 for homes of 2,000 sq ft or less if they are well insulated. I'm heating 1500 sq ft of poorly insulated space.

[hondaracer2oo4]

I agree that the benefits of less wood consumption are great BUT if you can't get 12 hour burn times out of the stove it really hurts argument to go to one. I think this is where a water heat sink could be used to fix this problem. Many of us on here have an owb because we have large, old and semi insulated home which require the btu load of a new 4000-5000k square foot properly insulated and air sealed home.

[yoderheating]

 The thing with these gassers are that to pass testing they really need to be run wide open with small amounts of wood.  There are really two things in play here, first testing and meeting that 2020 standard and then the other side if usefulness in the field.
 I would like to burn a G200 at some point and see how it does. This G100 is heating my 1920's home of 1500sq ft and doing it on a twice a day fill. So its not doing a bad job in my mind, much better than I expected going in to this test.
 I would much rather run a convention furnace from the standpoint of getting those 24 hour burn times. I plan on installing a MF10,000e or one of the new C375 over on the new home we are moving to ( 2,500+ sq ft built in 1911). I'm sure a G400 would do it but I want to be able to burn coal.

[Scott7m]

Yes the fire boxes are small to make them cleaner to pass the darn epa test, was speaking with a guy about it this morning

In regard to batch burning, it wouldn't do much good to add more storage to this unit,  it's not possible for it to hold any more wood so if you did have storage it might rub wide open for 4 hours, but then you need to reload it so what does that accomplish?   Nothing in my opinion