daniel taurins

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hopefully this helps too

so it will go from 100mm to what ever the barrel is - back to 100mm at the end to be fed out the window

Hi Glenn, ive added another pic with some measurements, over and around my burn chamber i have white brickies sand, probably not the best hey, should have used cement but it was a quick way to seal the bottom of the barrel to stop the smoke.
so the burn chamber itself should be the same as the feed, if ive stacked the bricks right @ 150x80mm ( its a rectangular chamber in there aswell till it hits the heat riser hole which is square all the way down @ approx 130x130mm.


sorry im a little confused, "A smaller exhaust duct will slow the gas flow considerably and reduce the fast, turbulent draft that is part of the clean burn. If you can replace the rest of the exhaust with duct or stovepipe of the same size as the combustion zone, that will help more." - in essence the pipe is about the same size as the burn chamber, its just round not rectangular.
"The barrels you propose to use in place of the horizontal duct will most likely make a big difference." - A good difference or will it bugger it ? i see it similar as a bell setup?
do you think if i cut the 100mm pipe i have now back to about a foot from the base, then attatch the small barrels to nearly the back length of the greenhouse is a good idea?


also, i know im being a pain, could my burn chamber be too long (450mm) do i need to bring the feed closer by a brick or 2?

chimney feeds out the wall and will be mounted just above the roofline ....so it will prob be 2.5m tall. climate is temperate, it can snow here. days at the moment are about 25C night time lately 7C

hi all, im attempting to make a RMH for my greenhouse as its soon to be winter here in aus, its made on the cheap out of old bricks (which might make it a masonry stove but oh well)
the burn chamber is all made from brick aswell as the heatriser, but i have the exhaust coming out of some old 100mm chimney pipe i picked up at the tip, the problem im having is that the exhaust that is coming out is real smokey and comes out rather quick, also the exhaust pipe only feels a little warm after 30 mins brun time, i put this down to: A) the bricks still arent hot enough to create a proper burn of all the gases ?. and B) my exhaust is too small and forces the exhaust gases out to quick.

so what i propose to do is collect smaller barrels (like shown in picture) cut the small pipe near the riser and join it to a series of the 60L barrels (with the bottoms/tops cut to make 1 big barrel) and then feed it back out a bit of the smaller pipe and out the chimney - i am assuming the gases will linger in the new exhaust chamber longer to heat up more (i will be making a raised garden on top- so it will heat a mass, prop concrete, the soil on that)

i have also included a dodgy paint drawing outling what i aim for, if anyone with better knowledge of these things has any comments, i would be happy to take any help onboard - i tend to get excited and rush into things

thank you very much
Daniel

Lucky Hill Farm
Lucknow, NSW.