Post by András on Dec 11, 2020 6:48:50 GMT -8
Dear Rocket Stove Experts,
For a few days now I am studying the rocket stoves, dimensioning, building types, etc. I think I also viewed most of the relevant videos I could find on Youtube about this subject.
My project is to create a central heating in my house, based on a rocket stove / solar water heater. I just bought a countryside house in Portugal, which traditionally doesn't have any heating at all. Just for the record, Portugal is not always warm and sunny, specially in the north (yesterday morning it was 12 C in the house, not comfy at all)
Anyway, I am going to build a rocket mass heater (in this case I am going to put a water tank around the barrel) to heat up 2-300l of water, which alternatively can be heated with the sun too. From that buffer tank I am going to circulate the water throughout the radiators in the house. Unfortunately it is hard get access to construction material you are all mentioning in the forum, so my idea is to keep it simple, use fire resistant bricks in the fire chamber and heat riser and to use normal bricks on the outer layer + heat insulation with rock wool, in case needed.
Sorry I went a bit off-topic. Back to my question, I would like to build the 6" rocket stove based on Mr. Peter's calculating sheet with one difference. I am thinking to do the heat riser also from heat resistant bricks (because that I can buy), stacking up like a classic chimney, so the cross section is going to be square (or could be rectangular if that is better). Would this be a problem, in terms of the heat flow and the vortex created during the heat lifting?
So according to the excel sheet, I should use a 150mm diameter tube, which has an area of 0,017671m2. If I do the square shape chimney with inner dimensions of 150x150mm gives me a bigger cross section area of 0,0225m2. My second question is, should I adjust the square shape to have an approximate same area as the round indicated round tube, or can I work with this access area and to keep the rest of the dimensions from the excel sheet according to the 6" model?
Thank you for your time, effort and help in advance! Best wishes
András
For a few days now I am studying the rocket stoves, dimensioning, building types, etc. I think I also viewed most of the relevant videos I could find on Youtube about this subject.
My project is to create a central heating in my house, based on a rocket stove / solar water heater. I just bought a countryside house in Portugal, which traditionally doesn't have any heating at all. Just for the record, Portugal is not always warm and sunny, specially in the north (yesterday morning it was 12 C in the house, not comfy at all)
Anyway, I am going to build a rocket mass heater (in this case I am going to put a water tank around the barrel) to heat up 2-300l of water, which alternatively can be heated with the sun too. From that buffer tank I am going to circulate the water throughout the radiators in the house. Unfortunately it is hard get access to construction material you are all mentioning in the forum, so my idea is to keep it simple, use fire resistant bricks in the fire chamber and heat riser and to use normal bricks on the outer layer + heat insulation with rock wool, in case needed.
Sorry I went a bit off-topic. Back to my question, I would like to build the 6" rocket stove based on Mr. Peter's calculating sheet with one difference. I am thinking to do the heat riser also from heat resistant bricks (because that I can buy), stacking up like a classic chimney, so the cross section is going to be square (or could be rectangular if that is better). Would this be a problem, in terms of the heat flow and the vortex created during the heat lifting?
So according to the excel sheet, I should use a 150mm diameter tube, which has an area of 0,017671m2. If I do the square shape chimney with inner dimensions of 150x150mm gives me a bigger cross section area of 0,0225m2. My second question is, should I adjust the square shape to have an approximate same area as the round indicated round tube, or can I work with this access area and to keep the rest of the dimensions from the excel sheet according to the 6" model?
Thank you for your time, effort and help in advance! Best wishes
András
