To refresh your memory about what makes the M series different I will cover the basics. The first and most important is the combustion air is supplied by the double walled chimney pipe, the hot flue gases going up the center pipe and the cold fresh air drops down the outer pipe getting preheated by the inner pipe.
What does this mean for you? You can now
install a split system a/c coil under the furnace.
Many of the new manufactured homes come with a
coil case installed under the furnace, if not, we stock
the coil case which can be added to an existing
furnace. Many homeowners would like to have A/C
but don’t want the self contained style with flex duct
connecting the outside unit to the ductwork You
can offer your customer this option when quote a
replacement furnace to replace their old MMG,
MOC or CMF furnace. These get the makeup air
from under the furnace through the floor base. It is
very easy to convert to the new style M furnace. Just
replace the floor base and make your connection to
the old duct. The M1 roof jack gets replaced with
the double wall style. This roof jack is a telescoping
type and extends all the way down to the top of the
furnace. The M3 90+ gas furnace uses PVC vent
pipe. Yaun Co. stocks an adapter kit that allows you
to use the old M1 chimney as a chase,. The kit caps
off the top and allows the PVC pipe to exit the roof
with out disturbing the roof seal.
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