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Viessmann B1KE-120 Combi Gas Boiler 120K,95%,
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Viessmann B1KE-120
Item#:
B1KE-120
Manufacturer Item:
7722776
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann B1HE-85 Gas Boiler Heat Only 80K 95%,
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Viessmann B1HE-199
Viessmann B1HE-199 Wall Hung Natural Gas Boiler Heat Only 199K BTU 95%
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Viessmann B1HE-150
Viessmann B1HE-150 Wall Hung Natural Gas Boiler Heat Only 150K BTU 95%
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Vesta VRC-80
Viessmann B1HE-120 Gas Boiler Heat Only 120K 95%,
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Viessmann B1HE-120
Flow Rate
Atomizing nozzles are available in a wide range of flow rates, all
but eliminating the need for specially calibrated nozzles. Between
1.00 GPH and 2.00 GPH, for example, seven different flow rates
are available. Generally, with hot water and warm air heat, the
smallest firing rate that will adequately heat the house on the
coldest day is the proper size to use and the most economical.
Short on-cycles result in low efficiency. Another guideline is to
select the flow rate that provides a reasonable stack temperature
regardless of the connected load. (According to the New England
Fuel Institute, aim for a stack temperature of 400°F or lower on
matched packaged units or 500°F or lower on conversion burners.)
If the boiler or furnace is undersized for the load, it may be
necessary to fire for the load and ignore the efficiency
Spray Angle
Spray angles are available from 30° through 90° in most nozzle
sizes to meet the requirements of a wide variety of burner air
patterns and combustion chambers.
Usually it is desirable to fit the spray angle to the air pattern of the
burner. In todays flame retention burner, it is possible to fire more
than one spray angle with good results. Generally, round or square
combustion chambers should be fired with 70° to 90° nozzles.
Long, narrow chambers usually require 30° to 60° spray angles.
Burner Air Patterns
Burner air patterns are much like nozzle spray patterns in that
they fall into the same general classifications, either hollow or
solid. As you would expect, a burner with a hollow air pattern
generally requires a hollow cone fuel nozzle. A burner with a solid
air pattern will give highest efficiency with a solid cone nozzle,
but the flame will probably be longer.
Spray Angle
Scully Signal 575-13
Viessmann Parts 7404396 Main Control Fuse
7404396
Item#:
7404396
Manufacturer Item:
7404396
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann Parts 7856004 Circulator Pump Viessmann UPS15-78,
7856004
Item#:
7856004
Manufacturer Item:
7856004
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann Parts 7404364 Fuse 4 Amp KW2/KW3 10/PK
Viessmann Heating Parts 7404364
Item#:
7404364
Manufacturer Item:
7404364
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann 7839846 Circulator Pump UPS15-78
Taco VT2218-HY1-FC1A01
Item#:
7839846
Manufacturer Item:
7839846
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann Parts 7427420 Control Console
Viessmann Heating Parts 7427420
Item#:
7427420
Manufacturer Item:
7427420
Manufacturer:
VIESSMANN MANUFACTURING INC.
Viessmann Parts 7134771 CPVC Flue Adapter 4"
7134771
Item#:
7134771
Manufacturer Item:
7134 771
Manufacturer:
VIESSMANN MANUFACTURING INC.