Masonry vs. Metal Chimneys
Pros and Cons of
A lot of people are confused
about the difference between masonry and metal
chimneys. Both types of chimneys can be used for
almost any kind of fireplace, boiler or woodstove.
There are a few differences which are important.
Based upon on your needs, knowing these differences
will help you make your decision on which one to
chimneys are flexible so they can be off-set to
meet the construction of the house.
on your home design there might be an off-set
between the fireplace, boiler or woodstove and
where you want to locate the chimney. An off-set
means that if the chimney cannot go straight up due
to some obstruction it will have to go around it.
Typically, metal chimneys are much more flexible
than masonry chimneys. Masonry chimneys can
function with a slight off-set, however, if an
off-set is too great a metal chimney will be
terms of performance, masonry chimneys typically
ensure higher heat reflection than metal chimneys.
For example, the higher the heat reflection a
fireplace has, the better the heat circulation
becomes. This increased heat circulation helps warm
the area around the fireplace better. This higher
level of performance cannot be matched by metal
chimneys are significantly heavier than metal
chimneys because of the mass of concrete.
Therefore, there are some restrictions on where
masonry chimneys can be located.
Because of the excessive weight of masonry
chimneys, they are not usually used on heating
systems that are located above the first level
unless they are built in the basement and run up
through the whole structure of the home. A metal
chimney is ideal for these locations.
the big draw backs of metal chimneys is that there
is a lot of condensation that collects in the
chimney as the heat rises in the chimney and makes
contact with the cold outside air. The condensation
runs down the metal chimney and leeks on the floor
where the heating device is located. In addition,
if the metal chimney is used on an oil-fired
boiler, stains will appear on the roof as a result
of the condensation and the high sulfur content of
fuel oil. This makes a mess of the house shingles.
Starting Fireplace Fires
The Best Burning Firewood
The Proper Height for a Chimney
What Not to Burn in Wood Burning Stoves
Wood Burning Fireplace Problems