Oil-Fired

 

D

 

 

C

 

Outlet

 

Inlet

Combined

 

 

Appliance

 

 

Outlet

 

 

T&P

 

 

Relief

 

 

Valve

 

 

Aquastat

 

A

Connection

B

Drain

 

 

Valve/

 

 

Return

 

 

 

 

E

 

20e

 

 

D

 

C

Outlet

Inlet

Auxiliary

 

Outlet:

 

32EC/BCS,

 

71EC,

 

51EC/BCS

 

T&P

 

Relief

 

Valve

 

Aquastat

 

Connection

B

Hand-Hole:

 

71E

A

Hand-Hole:

 

50ES

 

Drain

 

Valve/

 

Return:

 

71E

 

Drain

 

Valve/

 

Return:

 

32E,

 

50ES, 51E

E

32E, 50ES, 51E, 71E

 

C

 

D

Outlet

 

C

 

 

 

 

Outlet

Inlet

Auxiliary

 

Auxiliary

 

Outlet:

 

Outlet

 

40BCSE

 

T&P

 

 

 

 

 

 

Relief

 

T&P

 

Valve

 

Relief

 

 

B

Valve

 

 

 

 

Aquastat

 

 

B

Connection

 

 

 

 

Aquastat

 

Hand-Hole

 

Connection

A

 

 

 

Return:

A

 

 

120E,

Inlet

 

190E,

 

 

241E,

 

 

 

361E

 

Drain

 

Drain

 

Valve/

 

Valve/

 

Return

 

Return

 

 

 

 

E

 

E

 

 

 

33E, 40E

 

120E

Model

Storage

Rated Input

Recovery

Max. Temp

Inlet

Outlet

Return

 

Dimensions

 

Shipping Weight

 

 

@ ∆ 90°F

Setting

Pipe

Pipe

Pipe

 

 

 

 

 

(lbs)***

 

(gal)

 

 

(GPH)

(°F)

Dia.

Dia.

Dia.

 

 

 

 

 

 

 

 

BTH/HR

GPH

A

B

C

D

E

Standard

ASME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20e

20

60,000

0.43

66

160

3/4”

3/4”

3/4”

38 1/4”

20”

6”

11”

14 3/4”

148

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32E

32

104,000

0.75

114

160

3/4”

3/4”

3/4”

51”

20”

6”

11”

17”

272

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33E

33

104,000

0.75

111

160

3/4”

3/4”

3/4”

43 1/4”

24”

6”

N/A

17 1/4”

278

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40E

40

126,000

0.90

136

160

3/4”

3/4”

1”

61”

20”

6”

N/A

18”

301

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50ES

50

140,000

1.00

151

160**

1”

1 1/2”*

1 1/2”

52”

26”

6”

13 1/2”

18 1/2”

369

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51E

50

152,000

1.10

161

160**

1”

1”

3/4”

59”

24”

6”

11”

18”

330

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

71E

68

173,000

1.25

177

160**

1”

1 1/2”*

1 1/2”

66”

26”

6”

13 1/2”

22”

438

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120E

113

155,000

1.10

163

180

1”

2”*

2”

67”

31 1/2”

6”

19”

22”

709

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: 32E First Hour Rating = 180 Gallons

 

*Nipple not included

 

**Optional setting, contact factory

 

***Weight does not include burner and controls

 

T&P Valve: Factory Installed

(on selected models)

Drain Valve: Factory Installed Brass Valve

 

Standard Voltage (all): 120V, 60 Hz, 1P

 

Pressures (all): Working Pressure, 150 psi; Testing Pressure, 300 psi

 

ASHRAE: All Bock Products Meet or Exceed Current ASHRAE Standards.

 

Warning: Do not install on combustible flooring. Installation should be in accordance with all national and/or local codes. In the absence of local codes, refer to NFPA 31 or ANSI Z.21.10.1.

Caution: The recommended maximum hot water termperature setting for normal residential use is 120°F. Bock recommends a tempering valve or anti-scald valve be installed and used according to the manufacturer’s directions to prevent scalding.

www.bockwaterheaters.com

110 South Dickinson Street , Madison, Wisconsin 53703

Toll Free 800.794.2491 • Phone 608.257.2225 ● Fax 608.257.5304

80014-R Rev 2/08

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Bock Water heaters Residential Oil-Fired Water Heater warranty 20e, 32E, 50ES, 51E, 71E, 33E, 40E 120E
Page 1

Residential Oil-Fired Water Heater specifications

Bock Water Heaters is a well-established brand in the realm of residential oil-fired water heaters, known for its durability, efficiency, and advanced technology. Ideal for homeowners seeking an effective and reliable hot water solution, Bock’s oil-fired water heaters have become a favored choice due to their enduring performance and innovative features.

One of the main characteristics of Bock water heaters is their robust construction. Manufactured with heavy-duty steel and coated with a corrosion-resistant finish, these tanks are designed to withstand the rigors of daily use, extending the lifespan of the unit. The insulation surrounding the tank helps to minimize heat loss, ensuring that water stays hot for longer periods while maintaining efficiency.

Bock Water Heaters employ advanced heating technologies to maximize performance. Their units are equipped with high-efficiency burners that ensure effective oil combustion, resulting in faster heating times and reduced fuel consumption. This technology not only contributes to lower energy bills but also supports environmental sustainability by reducing emissions.

A critical feature of Bock oil-fired water heaters is their easy maintenance design. The tanks are designed for straightforward service, allowing homeowners or technicians to access and replace components with minimal effort. This user-friendly approach extends the life of the heater and keeps it running optimally throughout its lifespan.

Additionally, Bock offers a range of capacities in their oil-fired water heater line to accommodate different household needs. From small homes with modest hot water demands to larger residences requiring higher capacity for showers, dishwashers, and laundry, there is a suitable option for every situation.

Furthermore, Bock provides versatile installation options, allowing for either direct or indirect venting systems, giving homeowners flexibility depending on their specific plumbing and space arrangements.

In conclusion, Bock Water Heaters has positioned itself as a reliable manufacturer of residential oil-fired water heaters through its commitment to quality, efficiency, and user-friendly design. With their durable construction, advanced heating technologies, and range of features, Bock oil-fired water heaters continue to be a smart choice for homeowners looking for reliable and efficient hot water solutions. Choosing Bock means investing in a product known for longevity and performance, ensuring hot water availability for countless daily needs.
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