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Laars Pennant CH Hydronic Heating Boiler
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Easy to Install. Easy to Maintain. Easy to Use. Lower fuel bills.
The LAARS Pennant CH is an advanced, high-efficiency, hydronic heating boiler that delivers thermal efficiencies as high as 84% or more (85% minimum steady state combustion efficiency) and features fan-assisted sealed combustion, an innovative modular design, and electronic PID temperature control. Pennant CH units are available from 200,000 to 2,000,000 BTUs per hour (input).

Designed for fast installation, trouble-free long-term operation, and minimal yearly service costs, every Pennant CH unit is fully modular, with separate, easily-accessible heat exchanger, burner tray, gas train, combustion blower, igniter, and electronic components, and a simple—yet sophisticated—digital operating control with front panel temperature display, precision fingertip temperature adjustment, and complete diagnostic indicator lights.
 
Pennant CH units are available with or without a built-in pump, and, for applications that require greater heating capacities, individual units may be stacked on specially-designed racks. Multiple boiler installations also allow for boiler rotation (to extend operational life), redundancy (for backup purposes), or both.

LAARS Pennant CH Boiler with Built-In Pump
Fully fired, tested, and calibrated before leaving the factory, every Pennant arrives on the job ready to get right to work!

Also available: The new Pennant CP low temperature boiler, designed specifically for use with heat pump systems.

Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Brochure 200-400
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Submittal Data 200-400
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Submittal Data 200-400 with Pump
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Specification Sheet 200-400
 Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Specification Sheet 200-400 with Pump
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Operating Manual 200-400 		Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Brochure 500-2000
 Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Submittal Data 500-2000
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Submittal Data 500-2000 with Pump
Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Specification Sheet 500-2000
 Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Specification Sheet 500-2000 with Pump
 Click here for a LAARS Pennant Sales Brochure in Adobe Acrobat PDF Format (Adobe Acrobat Reader required). Operating Manual 500-2000
| Performance Ratings | Water Flow Requirements | Connections | Parts |
  
Pennant Performance Ratings
Fuel energy input, heat energy output, and net IBR rating in BTUs per hour x 1000 (MBH); steady state combustion efficiency as a percentage; and firing mode in stages.
Model Input Output Net IBR Rating Efficiency Firing Mode
200 199.9 169.9 144.4 85% 2
300 299.9 254.9 216.7 85% 2
400 399.9 339.9 288.9 85% 2
500 500 425 361 85% 2
750 750 638 542 85% 2
1000 1000 849 722 85% 3
1250 1250 1063 903 85% 4
1500 1500 1275 1084 85% 4
1750 1750 1488 1264 85% 4
2000 2000 1699 1444 85% 4
Net IBR rating includes an allowance for normal piping and pickup load (about 15% of the boiler's rated output). Steady-state combustion efficiency represents the amount of heat actually available to the system compared to the amount of heat available in the fuel less any heat lost up the flue (stack loss).
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Pennant Water Flow Requirements
Minimum water flow in gallons per minute (GPM) required to heat the supply water by the indicated temperature rise (F°) and the resulting head loss (H/L) across the boiler's heat exchanger.



Model

20°F Rise 25°F Rise 30°F Rise 35°F Rise
Flow H/L Flow H/L Flow H/L Flow H/L
200 17 1.6 14 1.0 11 0.7 10 0.5
300 26 3.5 20 2.3 17 1.6 15 1.2
400 34 6.3 27 4.0 23 2.8 19 2.1
500 43 1.7 34 1.1 28 0.9 24 0.7
750 64 3.3 51 2.3 43 1.7 36 1.2
1000 85 5.0 68 3.6 57 3.1 48 2.2
1200 106 8.1 85 6.1 71 4.7 61 3.4
1500 128 10.0 102 7.2 85 5.5 73 4.2
1750 N/R N/R 119 10.5 99 8.4 85 5.8
2000 N/R N/R 136 12.5 113 10.4 97 8.3
Head loss calculations apply only to LAARS OEM heat exchangers and allow for thirty feet of piping (the same size as the heater outlet) and, typically, five to six fittings.
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Pennant Connection Sizes and Weight
Gas, water, combustion air intake and exhaust vent connections in inches; approximate shipping weight in pounds.
Model Gas Water Air Intake Vertical Vent  Horizontal Vent Weight
200 ¾ 1½ 4 5 4 270
300 ¾ 1½ 4 6 5 300
400 ¾ 1½ 6 7 6 330
500 1¼ 2 6 6 6 425
750 1¼ 2 6 8 6 505
1000 1¼ 2½ 8 10 8 615
1200 2 2½ 8 12 8 675
1500 2 2½ 8 12 8 760
1750 2 2½ 12 14 8 825
2000 2 2½ 12 14 12 955
Add 55 lbs. to the shipping weight for units with built-in pump.
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Central Florida Representative:
Manufacturer:
Conservation Systems, Inc.
5850 Lakehurst Drive, Suite 120
Orlando, FL 32819-8386
407.351.9121 Phone
407.352.6391 Fax
www.csiworldwide.com		 Laars Heating Systems Co.
A subsidiary of Bradford White Corporation
1355 Kuehner Drive
Simi Valley, CA 93063-4478
1-800-900-9276
www.laars.com 
 
Specifications subject to change without notice.
Please read our Terms of Sale notice carefully before placing an order.
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