Specifications
Solution 2.5-ZC Fireplace Installation and Operation Manual  15 
Note that hardwood trees like oak, maple, ash and beech are slower growing and longer 
lived than softer woods like poplar and birch. That makes hardwood trees more valuable. 
The advice that only hardwoods are good to burn is outdated. Old, leaky cast iron stoves 
wouldn’t hold a fire overnight unless they were fed large pieces of hardwood. That is no 
longer true. You can successfully heat your home by using the less desirable tree species 
and give the forest a break at the same time. 
3.2.3 Log Length 
Logs should be cut at least 1” (25 mm) shorter than the firebox so they fit in easily. Pieces 
that are even slightly too long make loading the fireplace very difficult. The most common 
standard length of firewood is 16” (400 mm). 
The pieces should be a consistent length, with a maximum of 1” (25 mm) variation from 
piece to piece. 
3.2.4 Piece Size 
Firewood dries more quickly when it is split. Large unsplit rounds can take years to dry 
enough to burn. Even when dried, unsplit logs are difficult to ignite because they don’t 
have the sharp edges where the flames first catch. Logs as small as 3” (75 mm) should be 
split to encourage drying. 










