Brochure
DPM2
FUEL ECONOMIZER
The DPM 2 Fuel Economizer is
a must have accessory with
any hot water boiler installation.
The DPM 2 saves homeowners
money and makes their boiler
even more efficient than the
manufacturer designed it to be.
How the DPM 2 Works:
•
The DPM 2 regulates the temperature of the
hot water your boiler produces to heat your
home so that it more effectively matches heating
needs determined by how cold it is outside.
•
On very cold days, the DPM 2 allows your boiler
to operate at full capacity, producing a hot water
supply of 180°F.
•
On moderate temperature days, the DPM 2 will
lower your boiler’s output, limiting the hot water
supply produced to 140°F.*
•
The DPM 2 adjusts the boiler water temperature by
monitoring outdoor temperature and reducing how much
fuel is burned. This reduces fuel usage and fuel costs.
Increased Comfort:
•
During the vast majority of the heating season,
outdoor temperatures are warmer than the boiler’s
operating “design temperature”.
•
Thus the full capacity of the boiler at 180°F is
not required to heat the home on less frigid days.
•
On these moderate days, a 180°F hot water
supply can create an uneven heat from the boiler’s
rapid response to the thermostat.
•
By modulating boiler water temperature to match the
outdoor temperature demand, the DPM 2 creates a
steady, more even heat for superior home comfort.
•
The DPM 2 changes the boiler’s water temperature
gradually, reducing expansion noises in the home.
BOILER
HOT WATER
SUPPLY
WATER
RETURN
BASEBOARD
OUTSIDE TEMPERATURE
180°
50°F
DPM2
FUEL ECONOMIZER
50°F
BOILER BASEBOARD
OUTSIDE TEMPERATURE
HOT WATER
SUPPLY
140°
RETURN
Typical Boiler Operation
Outside Temperature . . . . . . . . . . . . . . . . . . . . . . 50°F
Water Supply Temperature . . . . . . . . . . . . . . 180°F
Boiler Heating Capacity . . . . . . . 100,000 BTU/hr
Boiler Fuel Consumption . . . . . . . . . 25,000 BTUS
Boiler Run Time . . . . . . . . . . . . . . . . . . . . 15 min./hr
Typical Boiler With DPM 2 Fuel Economizer
Outside Temperature . . . . . . . . . . . . . . . . . . . . . . 50°F
Water Supply Temperature . . . . . . . . . . . . . . 140°F
Boiler Heating Capacity . . . . . . . 100,000 BTU/hr
Boiler Fuel Consumption . . . . . . . . . 22,500 BTU
S
Boiler Run Time . . . . . . . . . . . . . . . . . . 13.5 min./hr
Fuel Savings . . . . . . . . . . . . . . . 2,500 BTU
SOR10%
How the DPM 2 Makes Your Boiler More Efficient:
How Much Can You Save
On Your Heating Bills?
•
Experts project that the typical savings that
may be realized from a DPM 2 outdoor reset
control to be approximately 10 to 15% per year,
depending on climate.
•
If you normally pay $1500 per year in space heating
fuel, you could save as much as $225 or more.
•
The DPM 2 will pay for itself and start putting
money back in your pocket in just over a year.
E
STIMATED FUEL SAVINGS USING DPM 2 CONTROL
**
30%
20%
10%
0%
60°
55°
50°
45°
40°
35°
30°
25°
20°
15°
10°
5°
0°
P
ERCENTAGE FUEL SAVINGS
OUTSIDE TEMPERATURE (F°)
**
Based on a Typical Boiler Design Temperature of 0°F and Hot Water Supply of 180°F
*
Check with your boiler manufacturer for recommended temperature limits.