The Manitowoc pilot. [volume] (Manitowoc, Wis.) 1859-1932, 1907-08-29


for obtaining ventilation in connection
with a jacketed stove leads to the con-
clusion that the following is the only
home made system that school boards
are safe in placing in their schools;
A stove of the round oak type, having
a fire pot 20 inches in diameter for a
room 20 by 32 feet and larger fire. pot
for larger room, should be used. This
should be placed in the end of the room
where the chimney is built. This is inn
portant in order to secure II proper dis
tribution of heat and circulation of fresh
air. Do not however, place the heater
directly in front of the chimney if it
can be avoided. In case it seems desir-
able or cannot be avoided, the heater
must be placed MT least Is inches from
the chimney and that part of the jacket
back of the stove should reach to the
floor. A fresh air pipe at least II inches
in diameter should be brought from the
outside of the building to point inn
mediately behind the stove. The open
ing of this pipe should be opposite the
tire.pot and inside the jacket; that is,
should reach or project to point 1.
inches above the bottom Cf the jacket
which is to be placed about the stove.
II this fresh air intake opens below the
stove through u register il will be found
that cold air will blow out under the
heater and the jacket aud over the floor
and cause the floor to be cold unless the
fresh air ventilation is entirely cut off
A jacket should be built to fit around
Il inches from the heater Mt all points
and should be lined with asbestos paper
and corrugated tin. The tin lining is
necessary in order to keep the asbestos
IN its place and from being torn by the
pupils The lining Will prevent any
direct radiation of heat through the
jacket The jacket should be built with
heavy steel rings ut the top and bottom
and steel frames for the door in order
that it may withstand the hard usage in
the school. 1t should cpiinW surround
the stove and be provided with one or
more doors through which the fuel and
ash doors may be reached. The top Of
this jacket should be about feet from
the floor and it should he placed at least
; inches above the floor on stout strap or
steel legs A tight.tittipg damper should
be provided in the fresh air intake near
the outer end so arranged that it may
be regulated from the inside of the room
according to the wind and weather or
may be closed when school is not in ses.
sion. This plan provides means for
bringing into the room plenty Of pure
; air and also takes care of the heating
part of this ventilation system.
An important feature, one which must
not be deviated from, is the construction
! of the smoke chimney and the foul air
ventilation. The chimney should be
built from the ground up and should be
at least 10 inches square inside The
best results will be obtained if this il Il
: double course chimney in ORDER that az
much heat rs possible may be retained
in the ventilation shaft A stack or pye
s inches in diameter made of No II
steel, should be placed in the center of
this chimney A "T' for receiving the
smoke pipe from the stove should pass
uta lta Il II 4 hvl = h,
walls of the chimney at the proper
height from the floor TO receive thesmoke
pipe from the stove. The bottom of
this steel stack or pipe must be tightly
closed and all joints made tight The
chimney should 90 through the peak of
the roof and stand at least feet above
the peak, and the steel stack or pipe
within the chimney itself. A wing
register ~ by 20 inches should be placed
in the bottom of this large chimney, the
lower edge Of the register placed even
with the floor line The idea is that the
foul air will pass ont through the space
surrounding the steel stack or pipe in
sIhc tue CuliHutS aHtl SoOu upward
draft will be maintained, especially in
the winter time, because of the heat
radated through the steel stack or pipe.
This system has been quite thoroughly
tested and is recommended ~ having
proved satisfactory.
The board members shoud be con
stantly on their guard against cheap and
unsatisfactory ventiatng apparatus
recommended by persons not regularly
engaged in the business of supplying
such appliances The homemade ap
piance= devised by local dealers can not
be safely relied upon If home made
appliances are to be used the plan above
described should be strictly followed
There are several patented systems on
the market that have proven satisfactory
and may bepurchased outright from the
dealers or firms by district boards if
they 80 prefer. ANY one of these sys
tens will be installed by the company
furnishing it and will also be fully
guaranteed The county superinten
dent can doubtless give the school board
necessary information concerning the
cost of installing any one of these sys-
tens and also give the address of the
company by whom il is furnished