wood requirement for slow firing

I recommend you contact the manufacturer. I cannot see anything from here that tells me anything useful about the design of this boiler or what one let alone one hundred tph might mean that makes sense to me. 100 Total Petroleum Hydrocarbons or 100 Tons Per Hour just makes no sense. I'm certain that the seasoning and type of wood will also make a big difference on the need volume of wood. Balsa wood will provide very little heat, pine and then oak will provide more. Ebony might provide the highest amount of energy but anyone burning ebony for heat should be fined and then shot.

Perhaps he means 100 tph of steam generation

100 Toilet Paper Holders of steam generation?

100 Tea cups Poured Handily of steam generation?

Eschew Obfuscation!!!

Agreed, if it were just tph on its own, it could be anything, but I think the "of steam generation" gives it away!

100 tons per hour of fire wood.

Many thanks to Don Julio for the support.

Depends on the calorific value of the wood.

At 3067 Kcal/kg Calorific value 243.7 kg/T x 100 = 24370.0 kg or 24.37 Tph wood required.