GOLD CGa Gas-Fired Water Boiler — Boiler Manual

13b Ratings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Boiler

Input

DOE

0–2,000 feet

2,000–4,500 feet

Net

Boiler

 

 

DOE

 

Chimney

model

(Btuh)

Heating

altitude

 

altitude

I=B=R

water

Seasonal efficiency

and

number

 

capacity

 

 

 

 

 

 

ratings

content

 

(% A.F.U.E)

 

breeching

 

 

(Btuh)

Input

Output

Input

Output

(Btuh)

(gallons)

SPDN

 

SPDL

 

PIDN

size

 

 

 

 

 

 

 

 

 

 

 

 

(Btuh)

(Btuh)

(Btuh)

(Btuh)

 

 

 

 

 

 

 

 

 

(Note 1)

 

(Note 2)

 

 

 

 

 

 

(Note 3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-25

52,000

44,000

52,000

44,000

46,800

39,000

38,000

1.5

 

81.5

 

83.3

 

84.0

4"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-3

70,000

59,000

70,000

59,000

63,000

53,000

51,000

1.5

 

81.6

 

83.7

 

84.0

4"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-4

105,000

88,000

105,000

88,000

94,500

79,000

77,000

2.1

 

81.7

 

83.7

 

84.0

5"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-5

140,000

117,000

140,000

117,000

126,000

105,000

102,000

2.7

 

81.8

 

83.7

 

83.5

6"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-6

175,000

146,000

175,000

146,000

157,500

131,000

127,000

3.3

 

81.9

 

83.6

 

83.2

6"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-7

210,000

175,000

210,000

175,000

189,000

157,000

152,000

3.8

 

82.0

 

83.6

 

83.0

7"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CGa-8

245,000

204,000

245,000

204,000

220,500

183,000

177,000

4.4

 

82.1

 

83.6

 

82.7

7"I.D. x 20’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. See Table 7 for available pilot systems. The suffix shown in the table is added to the boiler model number. (Not

 

available for millivolt systems.)

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Based on standard test procedures prescribed by the United States Department of Energy.

 

 

 

3. Net I=B=R ratings are based on net installed radiation of sufficient quantity for the requirements of the building

 

and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of

 

1.15. An additional allowance should be made for unusual piping and pickup loads.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 7

Ignition system model suffixes

 

 

 

 

Pilot ignition system

 

Natural gas

 

Propane gas

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standing pilot

 

 

SPDN

 

 

SPDL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spark-ignited pilot

 

PIDN

 

Not available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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temperature applications per instructions in this manual to avoid damage due to condensation.

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Part Number 550-101-009/0107

67

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Weil-McLain CGA25SPDN manual 13b Ratings, Doe
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CGA25SPDN specifications

The Weil-McLain CGA25SPDN is a high-efficiency gas-fired boiler designed to deliver dependable heating performance while maintaining a strong focus on energy savings and user-friendly operation. Ideal for residential applications, this boiler is engineered to provide consistent warmth and comfort in homes with various heating demands.

One of the main features of the CGA25SPDN is its durable construction. Built with high-quality materials, this boiler is designed to withstand the rigors of frequent operation while maximizing longevity. It features an advanced cast iron heat exchanger that efficiently transfers heat to the water, resulting in lower energy costs and improved overall performance.

Efficiency is a key characteristic of the Weil-McLain CGA25SPDN. Its design promotes efficient combustion, allowing for a higher Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 82%, this boiler ensures that more of the fuel used is converted into usable heat, which translates to reduced energy bills for homeowners.

The boiler exhibits a user-friendly control system that allows for easy operation and maintenance. It comes equipped with an integrated vent damper that maximizes efficiency by reducing heat loss during standby periods. Additionally, the CGA25SPDN features an adjustable thermostat, enabling homeowners to customize their heating preferences easily.

Another significant feature of the CGA25SPDN is its versatility. The boiler is compatible with various heating applications, including hot water heating systems and home heating configurations. This adaptability makes it a great choice for both new installations and retrofitting existing systems.

Safety is always a concern with gas-fired appliances, and the Weil-McLain CGA25SPDN addresses this through its advanced safety mechanisms. The boiler incorporates safety controls that prevent overheating and ensure proper operation, providing peace of mind to homeowners.

In summary, the Weil-McLain CGA25SPDN stands out as a reliable and efficient heating solution for residential settings. With its durable construction, high-efficiency performance, user-friendly controls, and impressive safety features, it is an exceptional choice for those seeking a dependable gas-fired boiler that meets modern heating demands while keeping energy costs in check. Homeowners can trust the Weil-McLain CGA25SPDN for warmth and comfort through the cold months.
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