Never A Compromise
For Quality or Safety


The Parker Indirect Fired Water Heater is an industrial quality unit designed for economically heating large volumes of domestic or process water for commercial and industrial applications. The all bronze and copper heat transfer coil eliminates the possibility of rust throughout the water passages. The indirect principle of heating the process water with sealed-in primary water combined with controlled circulation minimizes the possibility of scaling within the heat transfer coil for low or high temperature applications.

Heaters up to 3,000,000 BTU
The Parker WH Model Indirect Fired Water Heater is an excellent choice for Low or High Temperature applications.

Atmospheric Hot Water Heater Certifications
All Parker Boiler Water Heaters are manufactured in accordance with the ASME Power & Heating Boiler Codes and registered with the National Board of Boiler and Pressure Vessel Inspectors. The standard natural gas fired model is furnished as an Underwriters Laboratories, Inc. Listed Gas Fired Boiler Assembly and displays this symbol on the nameplate. Outdoor, propane and Low NOx models are ETL listed. Canadian models are C-ETL Listed Industrial and Commercial Gas Fired Packaged Boilers certified to CAN/CGA 1-3.1 and UL 795.

Low NOx Hot Water Heater Certifications
All Parker Boiler Water Heaters are manufactured in accordance with the ASME Power & Heating Boiler Codes and registered with the National Board of Boiler and Pressure Vessel Inspectors. All individual gas and electrical controls are AGA certified or UL Listed. All models are ETL Listed as “Industrial and Commercial Gas Fired Packaged Boilers” and certified to UL795. Units are listed for potable water. All units are provided with trim and controls to meet ASME CSD-1 standards for “Controls & Safety Devices.

Safety
Our ASME tube bundle is extremely flexible and offers a long life with a 25 year warranty against thermal shock. No Parker Boiler has ever been known to experience an internal explosion.

Advantages (Low NOx Models Included)

  • Safety
  • Heat Transfer Coil
  • Simplicity
  • Efficiency
  • Uniform Heat Distribution 
  • Low NOx
  • VFD/Premix System 
  • Durable Low NOx Burners
  • Increased Life
  • Reduced Repair Cost
  • Stainless Steel Option
  • Staggered Tube Design
  • Codes
  • Heavy Duty Tubes
  • Heavy Insulated Cabinet

 

Indirect Fired Water Heater
Indirect Fired Hot Water Heater
Natural Thermal Circulating
300,000 to 3,000,000 BTU Gas Fired

Indirect Heating Principle & Diagram
The Basic Principle of indirect heating is accomplished by circulating the low temperature or circulating processed water through a copper tube heat transfer coil which is mounted internally and immersed in the primary Boiler water. The primary Boiler water is contained in a Bent Steel Tube Bundle and is heated in the furnace area, it rises to the upper header where the heat transfer into the secondary water occurs. The colder secondary water does not come into contact with high furnace temperatures or into contact with the flue gas at all. This eliminates any possibility of flue gas condensation which will occur on Direct Fired Heaters. Sweating and external corrosion of the Boiler Structure and tubes is essentially eliminated. The possibilities of scale, rust and corrosion are minimized by the indirect design principle. The furnace remains at a steady uniform temperature which results in high combustion efficiency and lower fuel consumption. This principle has proven more efficient and provides for a longer life as opposed to a direct system.

  • Laundries
  • Hotels
  • Apartments
  • Dairies
  • Food Processing
  • Hospitals
  • Schools
  • Swimming Pools
  • Water Source Heat Pumps
  • Low Temperature Process Water Applications
  • Pond Heating
  • Fish Farms
  • Radiant Heating
  • Nurseries

Indirect Fired Water Heater (Internal View)

Low NOx Premix
Indirect Fired Hot Water Heater
Natural Thermal Circulating
300,000 to 3,000,000 BTU Natural Gas or Propane Fired

Parker Boiler Premix Burner System
The Parker Boiler System consists of a burner bed of Heavy Duty Metal Fiber Burners (MFB). Through a gas/air premix manifold, the burners may be linked to a fully modulating blower mixer which offers precise control of combustion through the full range of modulation. Parker Boiler uses a variety of premix gas/air mixing & delivery systems for it’s “L” System boilers. Parker Boiler’s Low NOx Systems are typically designed for a 20 or 30 ppm level at 3% O2, however, special lower Low NOx boilers are available. In all cases, a Premixed gas/air is distributed to the burners by a manifold. By precisely controlling the gas/air ratio provided to the burners, Low NOx emission & efficient clean combustion is obtained.

Parker Boiler Premix Burner System 4
Variable Speed Drive Fan Post Mix System
Siemens SKP – Controller
Parker Boiler Premix Burner System 5
Variable Speed Drive Fan Post Mix System
Honeywell Valve/Venturi
Low NOx Hot Water Heater Insert (Internal View)
Atmospheric Hot Water Heater Boiler Drawings:
Title Download
Atmospheric 1,210,000 BTU Boiler Drawing (Model-WH1210) – Multiple Views
  1 files      1 download
Download
Atmospheric 1,410,000 BTU Boiler Drawing (Model-WH1410) – Multiple Views
  1 files      1 download
Download
Atmospheric 2,270,000 BTU Boiler Drawing (Model-WH2270) – Multiple Views
  1 files      0 download
Download
Atmospheric 2,650,000 BTU Boiler Drawing (Model-WH2650) – Multiple Views
  1 files      1 download
Download
Atmospheric 3,000,000 BTU Boiler Drawing (Model-WH3000) – Multiple Views
  1 files      1 download
Download
Atmospheric 300,000 BTU Boiler Drawing (Model-WH300) – Multiple Views
  1 files      0 download
Download
Atmospheric 395,000 BTU Boiler Drawing (Model-WH395) – Multiple Views
  1 files      0 download
Download
Atmospheric 600,000 BTU Boiler Drawing (Model-WH600) – Multiple Views
  1 files      1 download
Download
Atmospheric 730,000 BTU Boiler Drawing (Model-WH730) – Multiple Views
  1 files      0 download
Download
Atmospheric 970,000 BTU Boiler Drawing (Model-WH970) – Multiple Views
  1 files      0 download
Download
Low NOx Hot Water Heater Anchor Clip Drawings:
Title Download
Low NOx 1,210,000 BTU Anchor Clip Drawing (Model-WH1210L)
  1 files      1 download
Download
Low NOx 1,410,000 BTU Anchor Clip Drawing (Model-WH1410L)
  1 files      0 download
Download
Low NOx 1,900,000 BTU Anchor Clip Drawing (Model-WH1900L)
  1 files      0 download
Download
Low NOx 300,000 BTU Anchor Clip Drawing (Model-WH300L)
  1 files      0 download
Download
Low NOx 395,000 BTU Anchor Clip Drawing (Model-WH395L)
  1 files      0 download
Download
Low NOx 490,000 BTU Anchor Clip Drawing (Model-WH490L)
  1 files      0 download
Download
Low NOx 600,000 BTU Anchor Clip Drawing (Model-WH600L)
  1 files      0 download
Download
Low NOx 970,000 BTU Anchor Clip Drawing (Model-WH970L)
  1 files      0 download
Download
Low NOx Hot Water Heater Boiler Drawings:
Title Download
Low NOx 1,210,000 BTU Boiler Drawing (Model-WH1210L) – Multiple Views
  1 files      1 download
Download
Low NOx 1,410,000 BTU Boiler Drawing (Model-WH1410L) – Multiple Views
  1 files      0 download
Download
Low NOx 1,900,000 BTU Boiler Drawing (Model-WH1900L) – Multiple Views
  1 files      0 download
Download
Low NOx 2,270,000 BTU Boiler Drawing (Model-WH2270L) – Multiple Views
  1 files      0 download
Download
Low NOx 2,650,000 BTU Boiler Drawing (Model-WH2650L) – Multiple Views
  1 files      0 download
Download
Low NOx 3,000,000 BTU Boiler Drawing (Model-WH3000L) – Multiple Views
  1 files      1 download
Download
Low NOx 300,000 BTU Boiler Drawing (Model-WH300L) – Multiple Views
  1 files      0 download
Download
Low NOx 395,000 BTU Boiler Drawing (Model-WH395L) – Multiple Views
  1 files      0 download
Download
Low NOx 490,000 BTU Boiler Drawing (Model-WH490L) – Multiple Views
  1 files      0 download
Download
Low NOx 600,000 BTU Boiler Drawing (Model-WH600L) – Multiple Views
  1 files      0 download
Download
Low NOx 730,000 BTU Boiler Drawing (Model-WH730L) – Multiple Views
  1 files      0 download
Download
Low NOx 970,000 BTU Boiler Drawing (Model-WH970L) – Multiple Views
  1 files      0 download
Download

NOTE: All drawing dimensions should be verified prior to installation. Due to continuous improvements and irregularities of purchased structural shapes and rounding, dimensions may vary and are subject to change without notice.

If the model of the boiler you are looking for is not readily available here please contact Parker Boiler for more assistance at (323) 727-9800 from 8:00AM to 5:00PM (PST).


Brochures:
Title Download
Hot Water Heater Atmospheric Brochure
  1 files      17 downloads
Download
Hot Water Heater Low NOx Brochure
  1 files      5 downloads
Download
Hot Water Heater System Brochure
  1 files      8 downloads
Download
Bulletins:
Title Download
Atmospheric Hot Water Heater Trim & Description Sheet
  1 files      11 downloads
Download
Dual Hot Water Heater Piping Diagram
  1 files      1 download
Download
Hot Water Heater Advantage Sheet
  1 files      3 downloads
Download
Hot Water Heater Closed System Heating Piping Diagram
  1 files      2 downloads
Download
Hot Water Heater Dual Temperature Piping Diagram
  1 files      2 downloads
Download
Hot Water Heater Piping Diagram
  1 files      2 downloads
Download
Low NOx Hot Water Heater Trim & Description Sheet
  1 files      2 downloads
Download
Spec Sheets:
Title Download
1,200,000-3,000,000 BTU Low NOx Hot Water Heater Spec Sheet (standard)
  1 files      3 downloads
Download
300,000-3,000,000 BTU Atmospheric Hot Water Heater Spec Sheet (outdoor model)
  1 files      8 downloads
Download
300,000-3,000,000 BTU Atmospheric Hot Water Heater Spec Sheet (standard)
  1 files      10 downloads
Download
300,000-970,000 BTU Low NOx Hot Water Heater Spec Sheet (standard)
  1 files      0 download
Download
Operation & Maintenance Manual:
Title Download
Hot Water Heater Atmospheric W/ Fireye Flame Safeguard Manual
  1 files      0 download
Download
Hot Water Heater Atmospheric W/ Honeywell S86 Flame Safeguard Manual
  1 files      3 downloads
Download
Hot Water Heater Low NOx W/ Fireye Safeguard Manual
  1 files      5 downloads
Download