
305498 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $13.90 | Top Pick! Condition is Used, Therm-O-Disc Heat Sequencer 15SH2 309574, A1045, H30-90, C1-30, FREE SHIPPING | 99.2% |
![]() | $20.00 | Condition is Used, Therm-O-Disc Heating Sequencer 305498 111001354 H30-90 C1-30, FREE SHIPPING | ![]() |
![]() | $20.00 | Condition is Used, Therm-O-Disc Heating Sequencer 305425 A1712 E-143 H30-90 C1-35 H24V, FREE SHIPPING | ![]() |
![]() | $22.99 | Condition is Used, Therm-O-Disc I5SHI 309744 H30-90 Heating Sequencer, FREE SHIPPING | 100.0% |
![]() | $19.98 | Condition is Used, Therm-O-Disc - Heating Sequencer - I5SHI 309744 H30-90, shipping cost = $6.99 | 94.4% |

The Therm-O-Disc Heating Sequencer 111001354 H30-90 C1-30, manufactured by Therm Discs, is a sophisticated and efficient temperature control solution designed for applications requiring precise temperature management in industrial or commercial settings.
This thermostatic disc controller is specifically engineered for use with electric resistance heaters, making it an excellent choice for various heating applications, including water heating, process heating, and space heating systems. The controller can handle a wide range of power levels, from 30 watts to 9000 watts, making it adaptable to a diverse array of heating applications.
The Therm-O-Disc Heating Sequencer boasts a number of advanced features designed to optimize performance and ensure consistent temperature control. Among these features is its ability to sequence multiple heating elements, allowing for the efficient and even distribution of heat. This controller can manage up to three heating elements, enabling users to program the sequence and duration of each element's operation to meet their specific heating requirements.
The Therm-O-Disc Heating Sequencer is designed with safety in mind. It includes a high-limit temperature setting, which automatically shuts off the heating elements when they reach a predetermined temperature to prevent overheating and potential damage to the system. Additionally, it offers a manual reset function, allowing users to safely reset the controller in the event of an issue.
The controller is constructed with high-quality materials and is built to withstand the rigors of industrial and commercial environments. It features a durable, waterproof housing designed to protect against moisture and other potentially damaging elements. The Therm-O-Disc Heating Sequencer is also easy to install, with clear and concise wiring instructions to ensure a straightforward installation process.
In summary, the Therm-O-Disc Heating Sequencer 111001354 H30-90 C1-30 is a versatile and powerful temperature control solution designed for applications requiring precise temperature management and efficient heating. Its advanced features, including the ability to sequence multiple heating elements and adjustable high-limit temperature settings, make it an ideal choice for a wide range of heating applications. With its robust design and user-friendly interface, this controller is an essential tool for any industrial or commercial heating system.
Therm-O-Disc Heating Sequencer H30-90 C1-30 (Therm Discs 305498, 111001354) - A Detailed Analysis
The Therm-O-Disc Heating Sequencer H30-90 C1-30, model numbers 305498 and 11101354, is a programmable heating controller designed to manage temperature settings for underfloor heating systems. In this analysis, we will discuss the key features, pros, cons, and a concluding recommendation.
Features:1. Programmable heating controller
2. Designed for underfloor heating systems
3. Provides accurate temperature control
4. User-friendly LCD display
5. Compatible with various floor heating systems
6. Adjustable temperature settings
7. Frost protection function
Pros:1. Enhanced temperature control: This heating sequencer allows for precise temperature control, ensuring optimal comfort and energy efficiency in your home.
2. User-friendly design: The LCD display is easy to read, and the programming interface is straightforward.
3. Versatility: It is compatible with various underfloor heating systems, making it a versatile choice for different applications.
4. Energy savings: With its ability to maintain consistent temperatures, the Therm-O-Disc helps reduce energy waste and save on utility bills.
5. Frost protection: The frost protection function ensures that your underfloor heating system does not freeze during colder temperatures, preventing potential damage.
Cons:1. Limited compatibility: The Therm-O-Disc is designed primarily for underfloor heating systems, and may not be suitable for other types of heating applications.
2. Complex installation: Installing the Therm-O-Disc and connecting it to your underfloor heating system may require professional help or a high level of DIY expertise.
3. Potential compatibility issues: Occasionally, users may experience compatibility issues with specific underfloor heating systems, which could result in additional troubleshooting and potential costs.
Conclusion:The Therm-O-Disc Heating Sequencer H30-90 C1-30 is an excellent choice for those seeking accurate temperature control and energy savings for their underfloor heating systems. Its user-friendly design, frost protection function, and compatibility with various floor heating systems make it a valuable investment. However, its limited compatibility with other heating applications and potential installation complexity are important considerations. Ultimately, if you have an underfloor heating system and are looking for efficient temperature control, the Therm-O-Disc Heating Sequencer is a worthwhile consideration.
Details:
About this item. Duct cleaning certified. Variable drive certified by Trane. This is a used Therm-o-Disc heating sequencer 305498 111001354 H30-90 C1-30.
Universal refrigerant license. Nate certified.
specifications maxohvac:
- brand: Therm O Disc
- mpn: 305498
- model: H30-90 C1-30
- type: 24 Vac Sequencer
shipping maxohvac:
- class: standard, expedited
- type: fixed
- carrier: usps
- service: usps ground advantage, usps priority mail
- transit: 4-10 days
seller maxohvac:
- city: north port, florida
- # reviews: 3004
- rating: 100.0%
offer maxohvac:
- options: ship-to-home
- availability: in stock
- started: january 10, 2026
- sold #: 9
- in stock #: 5
- prices: $13.90–$22.99
- item condition: Used
payments maxohvac:
- wallet: paypal
- other
- credit card: mastercard
returns maxohvac:
- method: money back
- time: 30 days
- policy: returns accepted
- paid by: seller
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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