Thread 2956604

I need to heat a 12×14' room and was exploring options to do so and arrived on a woodburner. I live in a geographically isolated region in the third world and have a masonry heater in another room for heating needs. Electricity is erratic in the winter months and I already buy wood for the masonry heater so wood burning is the only viable option for me. Now, there's no reliable supplier of wood burners available in my region as such devices are not required in the rest of the country. I looked into importing wood burners from EU or the US but didn't have any luck. Now the only option I'm left with is to make it diy. I have been researching for the past few weeks and have a general idea of the construction and what not. The metal I have access to is thick gauge mild steel and fire bricks. Has anyone made a similar stove for heating or has any link to resources for building one ? I am aiming for long burn times as I would use it to heat the room while sleeping. Normal temperature range during the winter is from 0 C to -5 C.

Those small metal stoves are not that great for a constant use because they do not store heat and its a lot of work to keep the fire going all the time. The route to the chimney is short and you cant close it complitely when there is fire so most of the heat will get sucked up in the sky and you end up wasting firewood. If i were you i would build another masonry heater. You can put a metal stove plate on top of it if you want the room to warm up faster but also store some heat. Its basically free if you have access to second hand bricks, good quality natural clay and sand. If you keep it simple and small you can drystack it outside and fire it up to test your design before you build it for real. Clay mortar is beginner friendly because it does not set quickly, does not irritate your skin and is possible to rebuild without breaking any bricks and you can even reuse most of the existing mortar.

>12×14'
That's about 15sqm. Rule of thumb is you need 2.4kW of energy for every 8sqm, so what you are aiming is a firebox with alteast 6kw of heat output. Make sure you are not venting directly into the chimney, cause that's a lost energy. My furnace runs on pelletes, but i think the priciple should be the same - there are two barriers that seperate the firebox from the exhaust. Ofcourse i have inspection hatches at the top for cleaning, so that would complicate things alot.

If you plan to vent straight for simplicity, make sure there's a bend in the chimney louvres. I would suggest tapping into the alredy existing chimney if it is possible.

>>2956634
Here is how the stove in my grandparents house looks.