Series 64

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The Series 64 boiler from Peerless is a semi-commercial, atmospheric, gas-fired boiler for hot water or steam systems. Ranging from seven to 12 sections in six sizes, the Series 64 boiler has an 81% combustion efficiency and an input of 345 to 632.5 MBH. The Series 64 boiler is offered as either a packaged unit or knockdown with factory assembled split block sections for ease of handling. The boiler is available for either natural or LP gas with spark ignition (seven and eight section boilers are also available with standing pilot ignition). A single vent draft hood allows for natural draft (chimney) venting.

The Series 64 boiler features a sizeable water content ideal for steam and large volume, hot water jobs. All boilers have steel push nipples that provide a permanent, watertight seal between sections, and a manual reset high limit control. Steam boilers offer a float type low water cut-off and skim tapping for thorough cleaning. Standard equipment on the Series 64 boiler include Honeywell operating controls and a deluxe, insulated, enameled steel jacket that completely encloses gas valves and burners, to reduce boiler heat loss. The low profile design of the boiler allows it to be used in limited clearance installations.

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Type: Semi-Commercial
Construction: Cast Iron
Fuel: Gas-Fired (Natural or LP)
Input: 345 to 632.5 MBH
Output: 279 to 525 MBH
Venting: Natural Draft
Trim: Water or Steam
Ignition: Spark (Standing Pilot Standard on
64-07 & 64-08 Models)

 

  • Packaged or Knockdown Semi-Commercial Gas Boilers
  • Natural or LP Gas
  • Natural Draft (Chimney) Venting
  • Electrically Operated Vent Damper (Optional)
  • Large Water Content
  • Single Vent Draft Hood
  • Standing Pilot or Spark Ignition
  • Steam or Hot Water Boilers
  • Skim Tapping for Cleaning Steam Boilers

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Series 64 Water Content Approx. Shipping Weight, lb
Model Number Input, MBH Gross Output3, MBH Net I=B=R Ratings1 Thermal Efficiency Combustion Efficiency3
Water Steam Steam, sqft Steam, MBH Water, MBH Water, % Steam, % Water, % Steam, % Water, gal Steam, gal
64-07 345 286 274 858 206 249 82.5 79.4 83.0 82.5 22.8 15.5 945
64-08 399 331 318 996 239 288 82.5 79.6 83.0 82.5 25.2 17.0 1081
64-09 460 382 367 1146 275 332 82.5 79.7 83.0 82.5 27.6 18.6 1218
64-10 518 430 413 1292 310 374 82.5 79.8 83.0 82.5 30.0 20.1 1354
64-11 575 477 459 1433 344 415 82.5 79.8 83.0 82.5 32.4 21.7 1490
64-12 633 525 506 1583 380 457 82.5 79.9 83.0 82.4 34.8 23.2 1527

1 Net I=B=R Ratings are based on Gross Output less an allowance for normal piping and pickup as determined by the Testing and Rating Standard for Low Pressure Cast Iron Heating Boilers of the Hydronics Institute. Water ratings are based on a piping and pickup factor of 1.15. Steam ratings are based on a piping and pickup factor of 1.33. Consult PB Heat before selecting a boiler for gravity hot water installations or for installations having unusual piping and pickup requirements such as exposed piping, night set-back, etc. Ratings shown are for elevations up to 2,000 feet. For elevations above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above sea level.

2 Minimum Natural Gas Inlet Pressure exceptions: 64-08 STDG 5.3”; 64-12 STDG 5.1”.

3 Combustion efficiency and gross output are determined in accordance with ANSI Z21.13 / CSA 4.9, Gas-Fired Low-Pressure Steam and Hot Water Boilers.

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Series 64 Boiler Dimensions

Boiler Model WidTD "A" DepTD "B" Top to Floor "C" Jacket DepTD "D" Rear of Jacket to c/l of Flue"E" Flue Size"F"
64-07 33 1/8" 39 1/4" 36 3/8" 28 1/8" 6 1/8" 9"
64-08 37 3/8" 43 1/8" 36 3/8" 30 1/8" 7 1/2" 10"
64-09 41 5/8" 43 1/8" 36 3/8" 30 1/8" 7 1/2" 10"
64-10 45 7/8" 45 1/8" 36 3/8" 30 1/8" 8 1 /2" 12"
64-11 50 1/8" 45 1/8" 36 3/8" 30 1/8" 8 1 /2" 12"
64-12 54 3/8" 45 1/8" 36 3/8" 30 1/8" 8 1 /2" 12"

Tapping Locations

Tap ID Size N.P.T. Steam Water
j 1 14" Skim Tapping Skim Tapping
K 1" Tank Supply/Limit N/A
L 1" Tank Return N/A
M 3/4" Boiler Drain Boiler Drain
N 3" Supply Supply
P 2 12" Return Return
R 3/4" Safety Valve Relief Valve
S 1/2" Gauge Glass N/A
T 3/4" Primary Probe Low Water Cut-Off N/A
U 3/4" Primary Limit Primary Limit
V 3/4" Secondary Limit Pressure/Temperature Gauge
W 3/4" Pressure Gauge Secondary Limit
X 3/4" Secondary Probe Low Water Cut-Off N/A

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