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EST. 2002
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Crown Boiler Company TWZ125

152,000 BTU, Water Boiler, 84.9% Efficiency, Oil Fired, Tankless Coil for Domestic Hot Water

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Professional installation now available in Ashburn, VA!

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In Stock in 14-17 days
The TWZ series boiler is a cast iron oil-fired water boiler designed for use in closed forced circulation heating systems. This boiler must be vented by natural draft into a lined masonry or metal chimney, or Type L vent. An adequate supply of air for combustion, ventilation and dilution of flue gases must be available in the boiler room. A factory installed tankless coil for domestic hot water is included with this boiler, eliminating the need for a domestic hot water heater. (Domestic water being that used for cooking, cleaning, and bathing.)

Please read this Important Safety Notice

Standard Features
  • NOT FOR INSTALLATION ON COMBUSTIBLE FLOORS
  • High efficiency - to 85.8% AFUE
  • Two-tone powder coated jacket, resists scratching, insulated with fiberglass to minimize wasteful heat loss
  • Split top jacket panel easily removed for servicing
  • Higher capacities can be achieved by changing the nozzle size
  • Chimney vent
  • Wet base construction surrounds combustion area at top, bottom, rear and sides of boiler
  • Combustion chamber has a ceramic fiber target wall with floor blanket
  • Swing open burner door for easy service
  • Standard equipment includes: Oil solenoid valve, burner twist disconnect, flame retention oil burner with interrupted ignition, combination aquastat/relay, draft regulator, 1-1/2" circulator, combination temperature/pressure gauge, boiler drain valve, ASME relief valve
Effective Heating Capacity (BTUs)
152000
Burner Capacity
1.25 GPH
Water Capacity
20 Gallons
Net Water Rating

The amount of heat, measured in BTUs, that the unit will be able to effectively deliver into your home.

Net Water Rating
132000 BTU
Efficiency (% AFUE)

The percentage of energy converted into output by the unit. The remaining percentage is lost during the conversion process. The higher the efficiency, the lower the operational cost.

Efficiency (% AFUE)
84.9 %
ENERGY STARĀ® Qualified

Products earn the ENERGY STAR label by meeting the energy efficiency requirements set forth in ENERGY STAR specifications. The EPA establishes these specifications based on the following set of principles:

  • Product categories must contribute significant energy savings nationwide.
  • Qualified products must deliver the features and performance demanded by consumers, in addition to increased energy efficiency.
  • If the qualified product costs more than a conventional, less-efficient counterpart, purchasers will recover their investment in increased energy efficiency through utility bill savings, within a reasonable period of time.
  • Energy efficiency can be achieved through broadly available, non-proprietary technologies offered by multiple manufacturers.
  • Product energy consumption and performance can be measured and verified with testing.
  • Labeling would effectively differentiate products and be visible for purchasers.

ENERGY STARĀ® Qualified
Yes
Piping Connections - Water
1 1/2 Inch(es)
Min. Recommended Chimney Size
8 x 8 x 15 Dia(in) Ht(ft)
Flue Size
7 inches
Product Weight
680 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Yes
Width
24 1/2 Inches
Depth
20 1/2 Inches
Height
31 1/2 Inches
Cast Iron Sections Warranty
Lifetime
Parts Warranty
1 Year
*Any accessories purchased with the Crown Boiler Company TWZ125, are eligible for free shipping.
BOILER SYSTEM ACCESSORIES
Product Image
Honeywell TK300-30A-2FM

Standard Boiler Accessory Kit

$154.99 Qty:
INDIRECT WATER HEATERS
Crown Boiler Company Mega Stor Water Heater
Crown Boiler Company Mega-Stor 26 (MS-26)

26 Gallon, Indirect Water Heater

$1,290.99 Qty:
Crown Boiler Company Mega Stor Water Heater
Crown Boiler Company Mega-Stor 40 (MS-40)

40 Gallon, Indirect Water Heater

$1,358.99 Qty:
Crown Boiler Company Mega Stor Water Heater
Crown Boiler Company Mega-Stor 79 (MS-79)

79 Gallon, Indirect Water Heater

$2,492.99 Qty:
Crown Boiler Company Mega Stor Water Heater
Crown Boiler Company Mega-Store 119 (MS-119)

119 Gallon, Indirect Water Heater

$3,799.99 Qty:
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