
TST2301 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $27.98 | Condition is New, Lochinvar TST2301 Thermowell Lochinvar Boilers Water Heaters 3/8" 4-1/4" OAL, FREE SHIPPING | 100.0% |
![]() | $34.05 | Condition is New, Lochinvar TST2301 Thermowell Lochinvar Boilers Water Heaters 3/8" 4-1/4" OAL, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $27.50 | Condition is New – Open box, Lochinvar TST2301 Thermowell Lochinvar Boilers Water Heaters 3/8" 4-1/4" OAL, shipping cost = $5.83 | 100.0% |

The Lochinvar TST2301 is a high-performance, condensing, cast iron boiler specifically designed for residential and light commercial water heating applications. This boiler is part of Lochinvar's Knight XCN Condensing Boiler Series, which is known for its superior efficiency and reliability.
The TST2301 features a 230,000 BTU input rating and is available in both natural gas and propane models. Its compact, wall-hung design allows for easy installation and saves valuable floor space. The boiler's cast iron sectional heat exchanger provides excellent heat transfer and durability, ensuring consistent water temperature and long-lasting performance.
The boiler's advanced condensing technology captures the latent heat in the flue gas, which increases overall efficiency and reduces energy costs. The TST2301 also comes with a stainless steel chimney liner, which is resistant to corrosion and prolongs the life of the chimney.
The boiler's built-in, modulating/condensing burner provides precise temperature control and maximizes fuel efficiency. It features a low NOx design, which meets or exceeds EPA and most local emissions requirements. The burner's modulating capability allows it to adjust firing rates to meet the demand of the system, which results in a more consistent water temperature and improved comfort.
The TST2301 includes a number of safety features, such as a low water cutoff, a high limit temperature switch, and a pressure relief valve. It also comes with a built-in, 316L stainless steel thermowell, which is compatible with a wide range of temperature sensors and allows for easy temperature measurement. The thermowell has an outside diameter of 4-1/4 inches and a length of 3/8 inch.
The boiler's exterior is constructed of heavy-gauge, 316L stainless steel, which is resistant to corrosion and provides excellent durability. The boiler is also equipped with a factory-installed, 2-inch, PVC venting system, which simplifies installation and eliminates the need for expensive, on-site venting fabrication.
The TST2301 is also compatible with Lochinvar's optional, ASME-rated, factory-installed expansion tank, which eliminates the need for a field-installed expansion tank and simplifies installation. The boiler is also compatible with Lochinvar's optional, EnergyStar-rated, condensing venting system, which further increases efficiency and reduces emissions.
Overall, the Lochinvar TST2301 is a high-performance, efficient, and reliable water heater that is suitable for a wide range of residential and light commercial applications. Its advanced features, including its condensing technology, modulating burner, and stainless steel construction, make it a top choice for those seeking excellent performance and long-lasting durability.
The Lochinvar TST2301 is a condensing wall-mounted boiler designed for residential and light commercial applications. It is known for its high efficiency and compact size. Here are some pros and cons of purchasing this boiler:
Pros:1. High Efficiency: With an AFUE rating of up to 95%, the Lochinvar TST2301 is an energy-efficient option for water heating.
2. Compact Size: The boiler's compact size makes it ideal for installation in tight spaces.
3. Easy Installation: The boiler comes with factory-installed pumps and a built-in expansion tank, making installation simpler and faster.
4. Versatile: The TST2301 can be used for both domestic hot water and space heating applications.
5. Low Emissions: The condensing technology used in the boiler reduces nitrogen oxide emissions, making it an eco-friendly option.
Cons:1. Cost: The Lochinvar TST2301 is a more expensive option compared to some other boilers on the market.
2. Complexity: The boiler's advanced features and technology may require professional installation and maintenance.
3. Limited Capacity: The TST2301 has a maximum input of 199,000 BTUs, which may not be sufficient for larger homes or commercial applications.
Conclusion:The Lochinvar TST2301 is a high-efficiency, compact, and versatile boiler with several advanced features. Its pros outweigh the cons, making it a great option for those looking for an energy-efficient and eco-friendly solution for water heating and space heating. However, its cost and complexity may be a deterrent for some.
Recommendation:If you are looking for a high-efficiency, compact, and versatile boiler for residential or light commercial applications, the Lochinvar TST2301 is a great option to consider. However, it is essential to factor in the cost and complexity of the boiler during your decision-making process. A professional installation and maintenance plan can help mitigate the potential challenges associated with the boiler's advanced features.
Details:
Made in the USA, this unit is designed to meet highest standards of performance and reliability. Whether you are a business or homeowner, this Lochinvar thermowell is an essential component for your hvac and refrigeration systems. This Lochinvar TST2301 thermowell is a high-quality unit designed for use with boilers and water heaters.
specifications maxohvac:
- brand: Lochinvar
- mpn: Tst2301
- type: Thermowell Lochinvar Boilers Water Heaters 3/8 4-1/4 Oal
- unit type: Unit
- country/region of manufacture: United States
shipping maxohvac:
- service: usps ground advantage
- transit: 3-8 days
- carrier: usps
- type: calculated
- class: standard
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- availability: in stock
- best offers: true
- started: april 2, 2025
- options: ship-to-home
- in stock #: 3
- prices: $27.50–$34.05
- item condition:
- New
- New – Open box
- sold #: 20
seller maxohvac:
- city: hamel, minnesota
- rating: 100.0%
- # reviews: 145
returns maxohvac:
- policy: no returns
payments maxohvac:
- credit card: mastercard
- other
- wallet: apple-pay
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