Coal stoker vented with pellet pipe
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Supersurvey
Feeling the Heat
It’s the prototype. They’ve been building this for years it seems. There’s a group of dealers burning them this winter. They made 50. So far very nice. Everything is stepped down to 24 v DC. Very hot and very efficient. Are you familiar with DS?
A bit, but not much. I am wondering how long pellet vent pipe will stand up under the corrosive fumes of coal burning and whether any pipe manufacturer has approved of it for this use.
It actually is recommended with the Ultimate One DV Pellet Vent. But it is approved for P Vent. I also wonder about the pipe over a few years.
Yes, 304 stainless may not last that long.
How noisy is it? Is the stove constructed similar to a pellet stove but for pea coal? That is, does it have a combustion and convection fan system?
How noisy is it? Is the stove constructed similar to a pellet stove but for pea coal? That is, does it have a combustion and convection fan system?
That’s what I hear from a lot of people.
How can chimney manufacturers approve their pipe for coal burning? Even Dura-Tech approves their pipe for coal and its 430 SS. I don’t get it?
Would think it would take rice coal. As long as no moisture gets into the pipe it should last a long time. Moisture would create sulfuric acid of sorts. Not a good thing for any chimney.
So in a lab environment it’s fine, just not so much out here in the real world. Hope I can get at least 5-6 years out of mine.
No one else in the industry agrees that 430 is acceptable for the inner wall of a chimney. And from the corrosion we see on 430 outer skins I agree. Certainly not for coal
I hope this stove works out. So far I have not been at all impressed with the engineering from ds.
It has a double reburn system. It also has a combustion fan, convection fan and a exhaust “helper fan” if the stove senses the exhaust flow is low. It’s fairly quiet but a little louder on the med high and high setting. It does throw a lot of heat.
I’ve seen galvanized rot out in less than 2 years with coal in damp conditions. We only carry series 300 stainless pipe.
430 is used by several manufacturers (Security, Metalfab, Amerivent Ameritec). The reason given is it has the least amount of expansion when heated, about half that of 304. The claim is this prevents gaps in the insulation and prevents hot spots from appearing which could cause a fire. It's fine for wood, but 316 would be a better choice for coal.
Not really. I’m sure there’s a bunch of fine print. It doesn’t really matter, I just don’t see how they can advertise it as suitable for coal when it clearly isn’t.
The Ultimate one from Selkirk is in the process of warranting their 4 in direct vent to be used with this stoker. http://ultimatepelletpipe.com/
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Yes I am fully aware of that. I was asking what alloy you use for these coal stoves
I knew it would be for ya. When I need to by wood or don't have time for the stove sitting or wood gathering, coal it is. You can't beat the constant heat output and burn times. And I have sources for hard coal nearby.
It’s hard to believe how much better coal is! Wood is coals retarded cousin! It’s so easy!
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