Post by mintcake on Mar 19, 2014 10:16:18 GMT -8
The 'high mass micro-bells with minimum drag' was what I was aiming at, I dont know if they work better than one big L shaped bell or not, I plan on doing that in the next one to see.
Our house (rural Romania) came with something very like the one on the left here:
It's just been rebuilt; inside we found up/down channels in a very similar pattern to Vortex's stove,
roughly speaking, the channels matched the system size.
Much like a batchbox + bell, it's designed for one/two firings per day, but if you like you can put several loads in for more heat (but less efficiency). However... because it has a
non-insulating firebrick firebox, no insulated heatriser, etc. etc, the smoke that comes from the chimney, even with a only , is pretty much black.
Also, while the "micro bells" give a lot of ISA, because there's no way for incoming air to
get to the chimney without passing all that ISA it is 100% dependant on stopping the airflow if you want to
store heat for a long time, as vortex found with his leaky door being helped by the damper.
The point of the bell is that cold air be pulled in and get to the
chimney while heat stays in the stove, and these channels just don't do that, sorry. They'll extract heat, but you do need to have some way of stopping the airflow, once the fire's out.
Once or twice I've made the mistake of leaving the door open for half an hour past the end of the burn;
the stove got no more than warm to the touch rather than radiator-hot. :-(