Specifications
14 Solution 2.5-ZC Fireplace Installation and Operation Manual   
3 Fuel 
3.1  Materials That Should Not be Burned 
•  GARBAGE OF ANY KIND, 
•  COAL OR CHARCOAL, 
•  TREATED, PAINTED OR COATED WOOD, 
•  PLYWOOD OR PARTICLE BOARD, 
•  FINE PAPER, COLORED PAPER OR CARDBOARD, 
•  SALT WATER DRIFTWOOD 
•  MANUFACTURED LOGS CONTAINING WAX OR CHEMICAL ADDITIVES 
•  RAILROAD TIES 
•  LIQUIDS SUCH AS KEROSENE OR DIESEL FUEL TO START A FIRE 
WARNING:  DO NOT POKE OR STIR THE LOGS WHILE THEY ARE BURNING. USE 
ONLY FIRELOGS THAT HAVE BEEN TESTED FOR USE IN FIREPLACES 
(SEE ULC/ORD-C127, COMPOSITE FIRELOGS) AND PRIOR TO USE, 
REFER TO FIRELOG WARNINGS AND CAUTIONS MARKINGS ON 
PACKAGING. 
3.2  How to Prepare or Buy Good Firewood 
3.2.1  What is Good Firewood? 
Good firewood has been cut to the correct length for the fireplace, split to a range of sizes 
and stacked in the open until its moisture content is reduced to 15 to 20 per cent. 
3.2.2 Tree Species 
The tree species the firewood is produced from is less important than its moisture content. 
The main difference in firewood from various tree species is the density of the wood. 
Hardwoods are denser than softwoods. People who live in the coldest regions of North 
America usually have only spruce, birch and poplar, other low-density species to burn and 
yet they can heat their homes successfully. 
Homeowners with access to both hardwood and softwood fuel sometimes use both types 
for different purposes. For example, softer woods make good fuel for relatively mild 
weather in spring and fall because they light quickly and produce less heat Softwoods are 
not as dense as hardwoods so a given volume of wood contains less energy. Using 
softwoods avoids overheating the house, which can be a common problem with wood 
heating in moderate weather. Harder woods are best for colder winter weather when more 
heat and longer burn cycles are desirable. 










