Empire Comfort Parts 14157 S, R, 1A End Cone

Empire Comfort Heating Parts 14157

Riello Parts 3002863 Aire Shuttle

3002863

Riello 3002278 Primary Control Sub-Base for F3, F5, F10 and BF5 Burners

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Riello Parts 3002278

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3002278

Weil-McLain Heating Parts 414 Double Ignitor

Mitco 148-8M

Field Controls 46273100 Air Pressure Switch for CAS-3, CAS-4 and CK,
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Fernox 60003

International Comfort Products Fast Parts 1110691 Inducer Blower Gasket

Grundfos 99358478

Bell & Gossett 107035
The Hydrotrol (HT) flow control valve is used to prevent overheating of zones due to gravity flow in hydronic heating systems and will permit summer-winter operation of indirect water heater. The HT valve allows fluid to pass when the system or zone pumps start. When the system or zone pumps are not operating, the HT valve remains closed, preventing gravity circulation. The HT valves are designed with a 1/2 turn knob that can be manually opened when draining the system or for bypass purposes. The HT valve can be installed in either the horizontal or vertical orientation.

• Prevents rooms (zones) from overheating due to gravity circulation
• Elastomer seal provides positive, shut-off eliminating the need for an isolation valve
• Brass body and non-ferrous internals
• Straight angle configuration allows for quick and easy installation
• Vertical design option saves installation time and material
• Turn knob for system draining or valve bypass
• Compact, lightweight design

Sid Harvey Item #:107035: Replaces Part #:'s : 3688,
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Apollo Valves B147-26

Reznor Parts 257472 Ignition Module,

257472

Honeywell 391937 Conversion Kit V800/VR800,
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Resideo 260603

Bramec Corporation and is a major distributor in the Electrical, Plumbing, Hardware and HVAC/R industry

5070 2-7/8" to 5" Adjustable Versa Cap,
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Bramec 19606

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.

3.75 GPH 3.75-80SS

Williamsom-Thermoflo Parts BB-PMP/LB-210-S2 Oil Burner Beckett Williamson

Williamson -Thermoflo Parts BB-PMP/LB-112