Flame sensors are crucial components in heaters, ensuring safe ignition and continuous flame detection. Replacing a faulty flame sensor can restore your heater’s efficiency and reliability. Below is a summary table of some of the best flame sensor replacements compatible with popular heater models including Hayward pool heaters, forced air kerosene heaters, and furnace units.
| Product | Brand | Compatible Models | Key Features |
|---|---|---|---|
| IDXLFLS1930 Flame Sensor Replacement | FATCANMA | Hayward Universal H-Series Induced Draft & Gas Heaters | Rapid ignition, stable operation, durable metal construction |
| Mr. Heater Flame Sensor Kit | Mr. Heater | Kerosene Forced Air Heaters MH50KT, MH75KT, MH125KT, MH175KT | Fits multiple kerosene forced air heaters, reliable flame detection |
| Apopip IDXLFLS1930 Flame Sensor Replacement | Apopip | Hayward Universal H-Series Low NOx Induced Draft Heaters | High-quality durable materials, longer service life |
| Puxyblue Furnace Flame Sensor 2-Pack | Puxyblue | Rheem, Ruud, WeatherKing, Thermal Zone Furnaces | Stainless steel build, wide furnace model compatibility, safe operation |
| Holdia Pool Heater Flame Sensor IDXLFLS1930 | Holdia | Hayward Universal H-Series Low NOx Induced Draft Heaters | Widely compatible with many Hayward H-Series heaters |
IDXLFLS1930 Flame Sensor Replacement for Hayward Pool Heaters

The IDXLFLS1930 flame sensor by FATCANMA offers a dependable upgrade specifically designed for Hayward Universal H-Series pool heaters. It targets ignition failures and turn on/off issues, restoring smooth heater operation.
- Compatible Models: Fits Hayward low NOx induced draft heater models including H150FDN, H200FDP, H250FDN, H300FDP, H400FDP, H250IDL2, etc.
- Build Quality: Constructed with high-grade metal material for rapid ignition response and long-term durability.
- Functionality: Helps prevent ignition failure and ensures stable flame monitoring for efficient heater performance.
Mr. Heater Flame Sensor Kit for Kerosene Forced Air Heaters

This flame sensor kit by Mr. Heater is tailored for use in kerosene forced air heaters from various brands. It ensures your heater detects flame presence accurately, minimizing the risk of gas leaks.
- Compatibility: Designed to fit Mr. Heater models MH50KT, MH75KT, MH125KT, MH175KT, and similar Heatstar and All Pro heaters.
- Reliable Safety: Immediately signals the control panel to shut off fuel if no flame is detected, enhancing user safety.
- Ease of Installation: Comes as a comprehensive kit for straightforward replacement.
Apopip IDXLFLS1930 Hayward Universal Flame Sensor Replacement

The Apopip flame sensor model IDXLFLS1930 offers a sturdy and reliable replacement for numerous Hayward Universal H-Series heater models. It features enhanced durability for prolonged lifespan beyond original components.
- Material Quality: Manufactured from durable materials to resist wear and ensure stable flame sensing.
- Broad Compatibility: Fits low NOx induced draft heaters including H150FDN, H200FDP, H250FDN, H300FDP, H350FDP, and more.
- Function: Accurate flame detection reduces ignition errors and improves pool heater reliability.
Puxyblue 2-Pack Furnace Flame Sensor for Rheem and Others

This pack of two flame sensors by Puxyblue is suitable for furnaces by Rheem, Ruud, WeatherKing, and other leading brands. Each sensor helps ensure safe furnace operation by detecting flame presence and preventing gas leaks.
- Durability: Crafted from stainless steel and ceramic for long-lasting service.
- Wide Compatibility: Compatible with numerous furnace models including UGDG, RGDG, VGDG series, among others.
- Safety Feature: Shuts down the furnace if the flame is not detected, preventing unsafe gas flow.
Holdia Flame Sensor Compatible with Hayward Universal H-Series

The Holdia flame sensor replacement part number IDXLFLS1930 supports safe ignition and flame detection for a wide range of Hayward Universal H-Series pool heaters. It is a versatile option for many common models.
- Application: Compatible with H250IDL, H300IDL, H400IDL, H150FD, H200FD, H350FD, H500FD, and more.
- Construction: Designed for enhanced durability and consistent flame sensing.
- Versatility: Suitable for various low NOx induced draft gas heaters from Hayward.
Buying Guide for Flame Sensor Heaters
Selecting the right flame sensor replacement is key to maintaining heater safety and function. Consider the following factors before purchasing:
Compatibility with Your Heater Model
Ensure the flame sensor matches the specific heater brand and model. Different heaters (pool heaters, kerosene forced air units, furnaces) require distinct sensors. Check model numbers carefully, especially for popular lines like Hayward Universal H-Series or Rheem furnaces.
Build Quality and Materials
A flame sensor made from durable metals and heat-resistant ceramics offers better longevity and reliable flame detection. High-quality construction reduces chances of early failure and ignition problems.
Installation and Replacement Ease
Choose sensors that allow straightforward installation, ideally as a direct replacement for OEM parts. Inclusion of installation kits or detailed instructions can be a bonus.
Safety Features
Effective flame sensors quickly signal the heater to shut off gas supply if no flame is detected, preventing dangerous gas leaks. Look for proven safety performance and compliance with industry standards.
Brand Reputation and Reviews
Purchasing from brands known for replacement HVAC parts such as Hayward, Mr. Heater, or reputable aftermarket brands can provide assurance of quality and support. User reviews also offer insight into real-world performance.
By focusing on these key buying considerations, you can choose a flame sensor replacement that restores your heater’s reliable ignition and keeps your home or pool environment safe.