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Peter

(1)

"Likewise, if you have burnt insufficient wood, there's no way to raise heat production in case the outside temperature drops unexpectedly."

There is an exception when you don't need to adapt the heating to the changes in outside temperature: if the walls of the house have high mass: concrete, (thick) brick, adobe, stone. These walls can store heat for a day with just a few °C temperature drop (and that is also an advantage in summer, allowing to cool the walls with nightly ventilation).
That's why tile stoves are traditional in adobe houses and fireplaces in wood houses.

François

(2)

A radiant floor works also best with a condensing boiler which are most efficient when working at lowest temperatures.

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