March, 1918 
73 
✓ 
MORE HEAT—LESS COAL 
% 
A Little Coal 
and Dunham 
Does the Trick 
*The Dunham Radiator Trap-the Equalizer 
More heat, less coal, surely a 
most desirable goal for the house¬ 
holder. But with coal next to im- 
f iossible to obtain and the boiler 
rantically demanding ton after 
ton, it looks like an impossibility 
to get more heat and still burn 
less coal. 
But wait a minute! There is a 
way to save coal and still be warm 
even in the severest weather. 
That wayisThe Dunham Heating 
Service, the foundation of which 
is The Dunham Radiator Trap. 
This trap, which has been aptly 
termed “The Guardian of the 
Coal Pile” saves coal because it 
gets every bit of heat out of the 
coal. In the Dunham dieating 
Service this 
trap is situated 
at the outlet 
side of each 
radiator. It 
automatically 
allows the air and 
water to escape 
and keeps in the 
precious heat. 
Right here, at the 
point where in 
ordinary heating 
systems much 
coal is wasted— 
many buckets of 
coal are saved by 
Dunham Service 
users. 
Homes, apart¬ 
ments and indus¬ 
trial plants all 
over the Country 
©UNHAM 
HEATING SERVICE 
Postpone This 
The Dunham Heating Service will post¬ 
pone that anxious moment when you 
come to the last of the coal pile. Dunham 
Heating Service saves coal, regulates 
dampers automatically, prevents over¬ 
heating as well as underheating, elimi¬ 
nates hissing, sputtering air valves and 
pounding pipes, requires few repairs 
and lasta & lifetime. 
are saving coal and cutting down 
their fuel bills by Dunhamizing 
their heating equipments. The 
installation of Dunham Radiator 
Traps in many cases is all that is 
necessary. Fuel saving effected 
the first winter often more than 
pays for the expense involved. 
The Nation mus/save 50,000,000 
tons of coal this year. How is it 
to be done? There is only one 
way. That is to make the coal 
we have go twice as far by using 
only as much as is absolutely 
necessary. Save every unnecessary 
shovelful. Every shovelful of coal 
you waste prolongs the war. 
Remember this—every half 
heated radiator, every pounding 
radiator, every 
sputtering, 
hissing air 
valve on a ra¬ 
diator, is a coal 
waster. 
Look to your 
present heating 
equipment. Find 
out if you are getting 
sufficient heat for 
the coal you burn. 
Ask a responsible 
heating contractor 
how Dunham Heat¬ 
ing Service may be 
installed and how it 
can save coal foryou. 
Ask us how your 
present heating sys- 
iem can be Dunham- 
ized. Patriotism and 
economy are calling 
you to save coal. 
Answer them by 
writing us today. 
Will you? 
C. A. DUNHAM COMPANY 
Fisher Building, Chicago 
Factories Brandies 
Marshalltown, Iowa in 36 cities in U. S. 
. Toronto, Canada ® n< l Canada >jj 
% ^ 
Send for This 
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VERMONT SLATE MANUFACTURERS 
Publicity Bureau B, Granville, N. Y. 
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THE J. L. MOTT 
IRON WORKS 
Trenton, New Jersey 
New York 
5th Ave. & 17th St. 
For full descriptions of this and other 
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see our “Bathroom Book,” which also 
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t Showrooms equipped 
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