Rocket stove and rocket mass heaters. How do they work Pt 1 of 2.mp4

[briansdogs]

Thanks for sharing.

[sideswipe147]

This video can EASILY be FF to about the 5 min mark without losing much...

[solarwin100]

How many square feet can a rocket mass heater heat

[josephdupont]

how about a coal powered rocket heater.

The ratio of volumes is based upon absolute temperature. To get a 10 fold increase in volume you would need a 10 times increase of temp.. not from 50 F would not be 700 degress, but 2800 degrees.

[vention4wh]

@josephdupont

Makes sense to me, I'm a diesel mechanic, not a physicist. In any case with the fire tube of the rocket stove being about 3.5 to 4 feet tall, it's enough of a draw to drive the exhaust through the thermal mass and then out the vent to the outside. It's strong enough to keep the flames from rising out of the wrong side as well.

I imagine anything that can burn would work just fine in a rocket mass heater.

[sideswipe147]

@josephdupont except for the fact that at that temperature you are exceeding the melting point of most steel which depending on the kind you are using is generally somewhere around 2500 deg F.... so bad idea if you have metal in your rocket

[josephdupont]

how about a coal powered rocket heater.

[MrGRINandBEARit]

i think a good way to control the temperature might be to regulate the air inlet according to how much heat you want, very hot=have the air inlet fully open, so for less heat just somehow half close the inlet pipe, im just going by how a Bunsen burner works which is pretty similar, with adjustable air holes

[beast12101]

good stuff

[Connected2U2]

We only had a smaller one at our hunting cabin and the "thermal mass" was 4 stacks or 12 inch 1/2 inch pipe by 8 feet, with the gaps filled in with old electro porcelain insulator and rail spikes and beach rock.

Don't get me wrong it was a awesome little stove and we never went cold, but like I said it was either too too hot with small stretches of perfect.

meh, then again I'm fond of watching a fire and hearing it crackle on cold dark nights, not the blast furnace rumble of a rocket stove.

[Connected2U2]

From 4 cord to1 cord is extreme, and really depends on how insulated your place is more than anything.

If you're just worried about heating your home (cheaper) than a rocket stove is the way to go.

But I find a rocket stoves you either got your place 120 degrees or nothing (lit or out).

[vention4wh]

@Connected2U2

Ya, there's no thermostat on a rocket stove. One way to help the extreme heat issue is to increase the thermal mass and enclose a larger portion of the barrel within the cob material. That allows the heat to be delivered over a longer period of time.

But this is all just theory to me since I live in a condo and I can't really build one for myself. I want to get down to cobville and take a class on them. In fact I'll look into doing that today.

[skybirdbird]

tkx...