Tobago (TWZ)

The Tobago (TWZ) Series boiler is an installer-ready, residential, cast-iron, oil-fired, water boiler. The Tobago is designed for installation with a standard chimney and is available in heating capacities from 80 to 241 MBH. This boiler is available in a semi-packaged ‘Shorty’ version. The ‘Shorty’ is shipped with the burner and controls separate from the boiler.

 

Category: Tag:
Brand: Velocity Boiler Works

Description

The Tobago (TWZ) Series boiler is an installer-ready, residential, cast-iron, oil-fired, water boiler. The Tobago is designed for installation with a standard chimney and is available in heating capacities from 80 to 241 MBH. This boiler is available in a semi-packaged ‘Shorty’ version. The ‘Shorty’ is shipped with the burner and controls separate from the boiler.

Options on the TWZ series include a domestic coil and your choice of three different oil burners: Beckett (standard), Riello or Carlin. Features of the TWZ series include a wet-base heat exchanger design, cast-iron burner swing door, a 3-prong quick disconnect for easy service, Honeywell operating controls, Taco circulator, and a barometric damper. Some TWZ models are ENERGY STAR® qualified. See the Product Ratings tab for more details.

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  Crown Boiler Energy Star

Product Brief

 

Type:Residential
Heat Exchanger:Cast Iron
Fuel:Oil
Input:0.65 – 2.00 GPH
Efficiency (AFUE)84.0% – 86.0%
Venting:Chimney
Ignition:N/A
Trim:Water
Domestic Water:Optional – Tankless Coil
Burner:Beckett, Carlin or Riello
Configuration:Packaged or Shorty
Notes:Some models are ENERGY STAR qualified.

 

 

Product Ratings

 

 

MODEL
NUMBER
NO.
SECTIONS
HEATING CAPACITY
(MBH)
AHRI NET RATING
(MBH)
BURNER CAPACITY
GPH
TWZ AFUE
(%)
TWD AFUE*
(%)
TANKLESS HEATER
GPM
CHIMNEY SIZE
IN. x IN. x FT.
APPROX SHIPPING WEIGHT
(LBS)
TWZ/TWD065*380700.6586.188.12.758 x 8 x 15560
TWZ/TWD075*391790.7585.887.83.008 x 8 x 15560
TWZ/TWD10031201041.0084.33.258 x 8 x 15560
TWZ/TWD090*4111970.9086.088.23.258 x 8 x 15680
TWZ/TWD125*41521321.2585.187.13.758 x 8 x 15680
TWZ15041791561.5084.04.008 x 8 x 15680
TWZ/TWD120*51471281.2085.987.53.508 x 8 x 15800
TWZ175*52121841.7585.14.258 x 8 x 15800
TWZ20052412102.0084.74.758 x 8 x 15800
*Energy Star qualified

  1. Altitudes above 2,000 ft. – ratings should be reduced at a rate of 4% for each 1,000 ft. above sea level (U.S.A only).
  2. The Net Water Ratings are based on a piping and pickup allowance of 1.15.
  3. Maximum Working Pressure, Water = 50 PSI.
  4. Tankless Heater Ratings based on I=W=H test standard.
  5. The manufacturer should be consulted before selecting a boiler for installation having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

 

 

Product Dimensions

 

MODEL
NUMBER
DIMENSION (INCHES)FLUE COLLAR DIAMETER
(INCHES)
AB
TWZ06516 – 1/28 – 1/46
TWZ07516 – 1/28 – 1/46
TWZ10016 – 1/28 – 1/46
TWZ09021 – 1/210 – 3/47
TWZ12521 -1/210 – 3/47
TWZ15021 – 1/210 – 3/47
TWZ12026 – 1/213 – 1/48
TWZ17526 – 1/213 – 1/48
TWZ20026 – 1/213 – 1/48

TWZ-CONFIGURATION

Related Documents

 

TWD_Oil_Vent_Damper_-Installation_Instructions

Tobago_TWZ_Installation_Manual-Hydrolevel_3250-Plus_Control-System

Tobago_TWZ_Installation_Manual-Honeywell_System

tobago_installation_manual

CVB-Tobago-TWZ-Lit-Sht-Web-June-18

Taco-OEM-007e®-2-ECM-Circulator-Manual-Jun-20

tobago_nomenclature

tobago_troubleshooting

tobago_2012_compliant_supplement

 

 

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