DB400 Comparison
| photo | price | summary | rating |
|---|---|---|---|
 | $2500.00 | Condition is Used, RBI Boiler DB400 399 MBH In 339.15 MBH Out Natural Gas 120V 60Hz 1Ph Used, shipping cost = $ | 100.0% |
 | $2500.00 | Condition is Used, RBI Boiler DB400 399 MBH In 339.15 MBH Out Natural Gas 120V 60Hz 1Ph Used, shipping cost = $ | 100.0% |
The RBI DB400 boiler is a high-performance, natural gas-fired boiler designed for residential and light commercial applications. This boiler has a maximum input rating of 399,000 British Thermal Units per hour (BTUs/h), making it an ideal choice for larger homes or buildings with significant hot water demand.
The DB400 is a condensing boiler, which means it is designed to extract maximum heat from the fuel source and transfer it to the water. This results in higher efficiency compared to non-condensing boilers. The boiler operates on natural gas at a pressure of 339.15 psi and is designed for use in North American applications with a voltage of 120 volts, 60 hertz, and single-phase power.
The DB400 features a modulating/staged gas input, allowing the boiler to adjust its output to meet the demand for hot water. This not only provides superior comfort but also helps to reduce energy consumption and save money on utility bills. The boiler also comes with an integrated circulator pump and a factory-installed expansion tank, making it a complete and ready-to-install solution.
The DB400 is known for its robust construction and durability. It is made with high-quality materials, including a stainless steel heat exchanger and a cast iron sectional combustion chamber. The boiler also comes with a number of safety features, including a low water level safety switch, a high temperature limit switch, and a flame rollout safety switch.
The DB400 is easy to install and operate, with a user-friendly control panel that allows users to monitor and adjust boiler settings. It also comes with a comprehensive warranty, providing peace of mind and protection against manufacturing defects. Overall, the RBI DB400 boiler is an excellent choice for those in need of a reliable, high-performance, and energy-efficient hot water solution.
The RBI DB400 boiler is a 399 MBH (Million British Thermal Units per Hour) natural gas-fired boiler with a 120V, 60Hz, 1-phase electrical rating. Here are some pros and cons that may help you make an informed decision about purchasing this boiler:
Pros:1. High Input Rating: With a 399 MBH input rating, this boiler is capable of providing a significant amount of heat, making it an excellent choice for large commercial or industrial applications.
2. Natural Gas Fired: Natural gas is a clean-burning fuel that produces fewer greenhouse gas emissions compared to other fossil fuels. It is also more cost-effective than oil in many areas.
3. Electrical Efficiency: The 120V, 60Hz, 1-phase electrical rating of this boiler makes it easy to install in applications where electrical power is readily available.
4. Reliability and Durability: RBI boilers are known for their high-quality construction and long-lasting performance.
Cons:1. Size and Weight: Due to its large input rating, the RBI DB400 boiler is a substantial piece of equipment. It requires a significant amount of space for installation and may require additional structural support.
2. Cost: With its high input rating and commercial-grade construction, the RBI DB400 boiler is a premium product. The cost of purchasing and installing this boiler may be prohibitive for some applications.
3. Complexity: Due to its size and power output, the RBI DB400 boiler is a complex piece of equipment. It requires regular maintenance and professional installation to ensure safe and efficient operation.
Ending Conclusion:The RBI DB400 boiler is a high-performance, natural gas-fired boiler that is well-suited for large commercial or industrial applications. Its clean-burning fuel source, electrical efficiency, and reliability are significant advantages. However, its size, weight, cost, and complexity may make it a less practical option for smaller applications or those with limited budgets.
Recommendation:If you have a large commercial or industrial application that requires a significant amount of heat, the RBI DB400 boiler is an excellent option to consider. Its high input rating, clean-burning fuel source, and electrical efficiency make it a cost-effective and efficient choice in the long run. However, if you have a smaller application or a limited budget, you may want to consider a smaller, less expensive boiler that better fits your needs.
Details:
Rbi boiler DB400 399 mbh in 339.15 out natural gas 120v 60hz 1ph used: 2500.00: part #: 120 v 60 hz dims: 52 x 32 41 weighs: 450 lbs used lock: ab11-9485 / ab4f4.
specifications maxohvac:
- brand: Rbi
- mpn: Db400
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
shipping maxohvac:
seller maxohvac:
- # reviews: 10379
- city: minneapolis, minnesota
- rating: 100.0%
returns maxohvac:
- time: 30 days
- policy: returns accepted
- method: money back
- paid by: seller
offer maxohvac:
- availability: in stock
- best offers: true
- options: ship-to-home
- in stock #: 2
- sold #: 5
- started: april 17, 2026
- price: $2500.00
- item condition: Used
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- credit card: visa