Daily Kennebec journal. [microfilm reel] (Augusta, Me.) 1870-1975, 1889-06-18
Method of Heating.

II room s heated by the ventlating air,
it can be heated only when ventilated. To
heat the room the air may be either a large
volume at low temperature, or a small vol
ume at high temperature. If a large air
supply is wanted, its temperature must be
low and if the supply is small, its tempera-
ture must be high Such a variable range
of temperature requires special means for
effectng it, either dual system of supply
BY which hot and cold air can be mixed for,
and as required for each room, or else a sep
arate supplementary indirect heater for each
room with by pass arrangement.
Besides being somewhat cumbersome and
expensive, these methods have still the fail
ing that heating is dependent on ventilation
to greater or less extent. By the
most efficient methods heating can
doubtless be done more cheaply by the
direct than by the indirect method. since
ventilation, by the very movement of warm
air out of a building carries heat with its
discharge. Since during the session of the
! legislature. the committee rooms the assem-
bly halls. etc, are to be kept continuously
! warm and need ventilation but one half the
time and as their ventilation must vary with
the number using them, | would recommend
| the distribution of air warmed only to seventy
| degrees or 80 to all rooms to be ventilated,
/ and the placing of direct radiators within the
rooms to furnish the supplementary heat re-
| quired, the steam to be admitted to the
radiators by such automatic means that the
temperature of the room shall be kept at the
/ desired point Then, when the room is
/ empty and the air supply small, or entirely
/ shut off the duty Of heating will fall on the
/ radiators; and when the room is crowded
ard the air supply large, the steam will be
| automatically shut of from the radiators
! All things considered this is the most per
/ feet arrangement am able to suggest.
| For the ventilation of the Hall of
Representatives would recommend
the supply of air through the floor.
and its slow dfusive movement into the
room through large surface to be
obtained By special adaptation of ether
I the members desks or the chairs to the pur-
pose The discharge | would effect through
me half dozen panels In the dome ard by
large outlets over the galleries and thence
through the attic and dome and lantern.
Without further study of plan. and confer
ence with the architect, any detailed state
ment of method is impossible. ln general it
would include fan in the basement with
1000 square feet of steampipe heating sur
face, one air duct running along the ceiling
through the corridor of the extension base
I UlSCI, Win brhuIhSs W iht. ~ tAf N'i
riflor walls, and another air duct running to
tho basement corridor of the old building
with large branches TO the Senate and rep
I resentative halls, and smaller ducts 10 other
rooms to be reached. The discharge you'd
be by means of suitably sized dues in the
corridor walls of the extension and by FIRE
place fiues and such other ducts as mi ght be
found necessary in the building. all ducts
! being properly carried up and terminated in
the roof.
For extreme weather. 100 deg. F. fol
which the system must be provided, aud
, when the system is doing full duty the Goa
| combustion for warming and veutilating all
will reach $50 pounds per hour. and tbs
, crate area provided for this purpose aion,
should be about 25 square feet For heating
the extension. aside from the ventila
, ton of both the buildings, some p