Rocket Mass Heater - top of barrel shape

pollinator

Posts: 1481

Location: Vancouver Island

posted 15 years ago

1
Number of slices to send:

Optional 'thank-you' note:

Send

I want to use a water heater tank as the barrel in a RMH. Any I have seen have used the top end which is domed upwards. However, The top has at least 5 holes and two tabs but the bottom has only two holes.... I would like therefore to use the bottom as the top, but the bottom on top would look more like a permanent wok. (time for pansit and stir fry)

My thoughts so far are:
1) domed would take less room
2) domed directs the gases gently around the corner (good or bad?)
3) I have only one, so I can't try both ways
4) the tank is 4ft high so I would have some extra material to plug holes

Any ideas?

For your bravery above and beyond the call of duty, I hereby award you this tiny ad:

Heat your home with the twigs that naturally fall of the trees in your yard

http://woodheat.net