depends. wood stoves put out a metric shitton of heat, no matter how hot their surroundings. the more of it you capture, the less wood you need. we have a massive old stone oven that takes a week to heat up but then keeps above ambient for like two-three. it’s several m3 in size, the house is built around it. it also keeps the house cool in summer by absorbing heat.
Oh sure the technique of storing heat in stone is valid. Again, the Finnish have used it for long time in oven design. It’s possible to get modern soap stone ovens for this purpose.
depends. wood stoves put out a metric shitton of heat, no matter how hot their surroundings. the more of it you capture, the less wood you need. we have a massive old stone oven that takes a week to heat up but then keeps above ambient for like two-three. it’s several m3 in size, the house is built around it. it also keeps the house cool in summer by absorbing heat.
Oh sure the technique of storing heat in stone is valid. Again, the Finnish have used it for long time in oven design. It’s possible to get modern soap stone ovens for this purpose.
https://en.wikipedia.org/wiki/Masonry_heater