
23-5519-3 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $21.00 | Condition is New – Open box, ROBERTSHAW THERMOSTAT 23-5519-3 new, FREE SHIPPING | 99.8% |
![]() | $18.00 | Condition is New – Open box, ROBERTSHAW THERMOSTAT 23-5519-3 AP-24-1080 new, shipping cost = $4.00 | 100.0% |
![]() | $25.00 | Condition is New – Open box, NOS Robertshaw Pilot Duty Thermostat Model # 23-5519-3 AP24-1080, FREE SHIPPING | 98.5% |
![]() | $34.95 | Condition is New – Open box, NOS Robertshaw Pilot Duty Thermostat Model # 23-5519-3 AP24-1080, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $18.00 | Condition is Used, ROBERTSHAW THERMOSTAT 23-5519-3, FREE SHIPPING | 99.8% |
![]() | $19.00 | Condition is Used, NOS Robertshaw Pilot Duty Thermostat Model # 23-5519-3 AP24-1080, FREE SHIPPING | 99.8% |

The Robertshaw 23-5519-3 NOs Pilot Thermostat AP24-1080 is a crucial component for maintaining optimal temperature in various heating applications. This thermostat's design is specifically engineered for gas appliances, such as water heaters, furnaces, and boilers.
This thermostat features a NOs (Normally Open, Switch Closed) design, which means that it is in the open position when the heating element is not engaged. Once the desired temperature is reached, the thermostat switches to the closed position, allowing the gas valve to open and maintain the temperature.
The AP24-1080 model comes with a pilot thermostat specifically designed to work with the 23-5519-3 unit. This pilot thermostat ensures precise temperature control by activating the pilot flame when the room temperature drops below the set point. Once the room temperature reaches the desired level, the pilot thermostat turns off, allowing the main gas valve to close, saving energy and preventing overheating.
The Robertshaw 23-5519-3 NOs Pilot Thermostat AP24-1080 is built with high-quality materials to ensure durability and long-lasting performance. The thermostat's dial is easy to read, allowing users to quickly and accurately set the desired temperature. The thermostat also has a sturdy design, with a metal base and a heat-sensitive bimetallic element that ensures accurate temperature sensing.
Installation of the Robertshaw 23-5519-3 NOs Pilot Thermostat AP24-1080 is relatively straightforward for experienced do-it-yourselfers. However, for those who are not comfortable working with gas appliances, it is recommended to consult a professional technician to ensure safe and proper installation.
Overall, the Robertshaw 23-5519-3 NOs Pilot Thermostat AP24-1080 is an essential component for maintaining temperature control in gas heating appliances. Its precise temperature sensing, durable design, and easy-to-use features make it an excellent choice for both residential and commercial applications.
The Robertshaw 23-5519-3 NO Pilot Thermostat AP24-1080 is a thermostat designed for use in natural gas appliances. Here are some pros and cons that might help you make an informed decision about whether to purchase this thermostat:
Pros:1. Precise Temperature Control: This thermostat is designed to maintain a consistent temperature, ensuring that your appliance operates efficiently and effectively.
2. Easy Installation: The thermostat is relatively easy to install, and it is compatible with a wide range of appliances, making it a versatile option.
3. Durable Construction: The thermostat is made of high-quality materials, which makes it durable and long-lasting.
4. Adjustable Setting: The thermostat comes with an adjustable setting, allowing you to customize the temperature to your preference.
5. Cost-Effective: Compared to other thermostats in the market, this one is relatively affordable, making it a cost-effective option.
Cons:1. Limited Compatibility: While the thermostat is compatible with a wide range of appliances, it may not be suitable for all of them. It is essential to check the compatibility before making a purchase.
2. No Display: The thermostat does not have a display, making it difficult to check the temperature setting without removing the cover.
3. No Battery Backup: The thermostat does not have a battery backup, which means it may not function during power outages.
Conclusion:The Robertshaw 23-5519-3 NO Pilot Thermostat AP24-1080 is a reliable and cost-effective option for those looking for precise temperature control in their natural gas appliances. Its easy installation, durable construction, and adjustable setting make it a popular choice among consumers. However, its limited compatibility, lack of display, and no battery backup may be drawbacks for some. Ultimately, whether this thermostat is the right choice for you depends on your specific needs and preferences.
Recommendation:If you are looking for a cost-effective and reliable thermostat for your natural gas appliance, the Robertshaw 23-5519-3 NO Pilot Thermostat AP24-1080 is a good option to consider. However, it is essential to check the compatibility before making a purchase, and if precise temperature control is not a priority, you may want to explore other options that offer more advanced features.
Details:
Appears in good working condition. No box, sat out a bit.
specifications maxohvac:
- brand: Robertshaw
- mpn: 23-5519-3
- part type: Thermostat
- location: A-1-4-2-2
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
seller maxohvac:
- city: perry, ohio
- rating: 100.0%
- # reviews: 1292
shipping maxohvac:
- service: usps ground advantage
- transit: 3-9 days
- class: standard
- type: calculated
- carrier: usps
offer maxohvac:
- availability: in stock
- sold #: 16
- options: ship-to-home
- started: september 16, 2025
- prices: $18.00–$34.95
- item condition:
- New – Open box
- Used
- in stock #: 5
payments maxohvac:
- wallet: apple-pay
- other
- credit card: diners-club
returns maxohvac:
- policy: returns accepted
- method: money back
- paid by: buyer
- time: 14 days
Also Viewed:
- 2000DERHC-S7A: FURNACE VALVE, Robertshaw
- 5600-311: WATER THERMOSTAT HEATER, Robertshaw
- 4350-025: THERMOSTAT, Robershaw
- 4250-028: THERMOSTAT, Robershaw
- 3310-305: COMPRESSOR, Robertshaw
- EA5-344-36: THERMOSTAT, Robertshaw
- 785-00A: , Robertshaw
- T19-301: THERMOSTAT, Robertshaw
- 9528: PRESSURE BURNER, Robertshaw
- 1820-019: HAND GENERATOR, Robertshaw
- 700-053: VALVE, Robertshaw





