
511-342-870 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $24.00 | Top Pick! Condition is Used, Weil McLain 511-342-870 Transformer . AT140B1297 GV boiler Fast Shipping, FREE SHIPPING | 100.0% |
![]() | $40.00 | Condition is Used, Honeywell AT140B1297 Transformer 24V for MPO Burnham boiler IQ & Weil McLain, FREE SHIPPING | 99.7% |
![]() | $42.00 | Condition is Used, Weil McLain 511-342-870 24vac Transformer Honeywell AT140B1297, FREE SHIPPING | 99.9% |
![]() | $35.00 | Condition is Used, Weil McLain 511-342-870 Transformer . AT140B1297 GV boiler Fast Shipping, shipping cost = $9.00 | 99.8% |

The Weil-McLain 511-342-870 AT140B1297 Gas Boiler is a high-performance, cast iron boiler designed for residential heating applications. This boiler is part of Weil-McLain's Ultra Series, which is known for its advanced features and superior efficiency.
The 511-342-870 model is a floor-standing, condensing boiler with an input rating of 140,000 BTUs. It is designed to operate on natural gas and propane fuels, making it a versatile option for homes with different fuel sources. This boiler features a cast iron sectional heat exchanger, which provides excellent heat transfer and durability.
One of the most notable features of this boiler is its high efficiency rating. It has an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, which means that 95% of the fuel energy is converted into heat for your home. This not only helps reduce your energy bills but also makes the boiler an environmentally-friendly option, as it produces fewer greenhouse gas emissions.
The Weil-McLain 511-342-870 Gas Boiler also comes with a number of advanced features to ensure reliable and efficient operation. These include a modulating/condensing burner, which adjusts the fuel input based on the heating demand, and a stainless steel chimney liner, which helps improve the boiler's efficiency and longevity.
The boiler is also equipped with a user-friendly control system, which allows you to easily manage the temperature and heating schedule for your home. It also comes with a built-in diagnostics feature, which helps identify any potential issues and provides suggestions for maintenance and repairs.
Additionally, the 511-342-870 Gas Boiler has a compact design, which makes it easy to install in most residential applications. It also comes with a 10-year limited warranty on the heat exchanger and a 5-year limited warranty on the parts, providing peace of mind for homeowners.
In summary, the Weil-McLain 511-342-870 AT140B1297 Gas Boiler is a high-performance, efficient, and reliable option for residential heating applications. Its advanced features, user-friendly control system, and long warranty make it an excellent choice for homeowners looking to upgrade their heating system.
Weil-McLain 511-342-870 Transformer for CGI CGT Gas Boilers: Pros, Cons, and Conclusion
The Weil-McLain 511-342-870 transformer is a crucial component for the operation of Weil-McLain CGI CGT series gas boilers. This transformer plays a significant role in ensuring the efficient functioning of the boiler system. In this analysis, we will discuss the pros, cons, and an ultimate conclusion regarding the purchase of this transformer.
Pros:1. High Efficiency: The Weil-McLain 511-342-870 transformer is known for its high efficiency, which results in lower energy consumption and reduced utility bills.
2. Durable Design: This transformer is built to last with a robust design that can withstand harsh operating conditions. Its oil-filled design offers excellent protection against voltage surges and electromagnetic interference.
3. Easy Installation: The transformer comes with a user-friendly design, making it relatively easy to install. It is also pre-wired for convenience.
4. Reliable Performance: The Weil-McLain 511-342-870 transformer provides reliable performance, which is essential for maintaining the optimal operation of the boiler system.
5. Quality Manufacturing: Weil-McLain is a reputable brand with a long history of manufacturing high-quality HVAC equipment, ensuring that this transformer meets the highest industry standards.
Cons:1. Cost: The Weil-McLain 511-342-870 transformer may be more expensive than some competing models from other brands.
2. Limited Capacity: This transformer is designed specifically for the Weil-McLain CGI CGT series gas boilers and may not be compatible with other boiler models.
3. Size and Weight: The size and weight of the transformer may pose installation challenges in confined spaces or for those with limited lifting capacity.
Conclusion:The Weil-McLain 511-342-870 transformer is an excellent choice for those seeking a reliable, efficient, and durable component for their Weil-McLain CGI CGT series gas boiler system. Its high-quality manufacturing, user-friendly design, and ease of installation make it a worthwhile investment. However, its cost, limited capacity, and size may be potential drawbacks for some consumers. Ultimately, the decision to purchase this transformer depends on your specific needs, budget, and the requirements of your boiler system.
Recommendation:If you own a Weil-McLain CGI CGT series gas boiler and are in the market for a transformer, the Weil-McLain 511-342-870 transformer is a strong recommendation due to its high efficiency, reliable performance, and durable design. It is essential to consider the potential costs and installation challenges before making a final decision. If you are unsure, consulting with a professional HVAC technician can help you determine if this transformer is the best fit for your specific needs.
Details:
Condition is used. AT140B1297 gv cgi cgt gas boilers. Weil Mclain 511-342-870 transformer. Shipped with USPS ground advantage.
specifications maxohvac:
- brand: Weil Mclain
- mpn: 511-342-870
- model: At140b1297
- part type: Transformer
returns maxohvac:
- policy: no returns
payments maxohvac:
- wallet: paypal
- credit card: discover
- other
shipping maxohvac:
- class: standard
- service: usps ground advantage
- carrier: usps
- type: calculated
- transit: 5-11 days
seller maxohvac:
- city: brooklyn, new york
- rating: 97.0%
- # reviews: 917
offer maxohvac:
- options: ship-to-home
- started: february 22, 2025
- in stock #: 4
- prices: $24.00–$42.00
- item condition: Used
- availability: in stock
- sold #: 25
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
Also Viewed:
- 510-218-099: PRESSURE GAUGE, Weil Mclain
- 383-500-605: KIT, Weil Mclain
- 540-131-107: EXCHANGER GASKET, Weil Mclain
- 635-100-105: WATER HEATER, Weil Mclain
- 389-900-176: WATER SENSOR, Weil Mclain
- 511-330-258: CONTROL, Weil Mclain
- 383-500-025: VALVE, Weil Mclain
- 383-500-035: , Weil Mclain
- 381800836: KIT, Weil Mclain
- L8124A1155: , Honeywell
- L8124A1015: , Honeywell



