The 5 Best 2 Wire Flame sensors (2023 reviews)

2 wire flame sensors
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It is important to have the well suited 2 wire flame sensor. In the following post, we will help you to select the best 2 wire flame sensors.

Our review process:

Our Top Picks:

Best Overall:
Buy: Seneca River Trading 2 Wire Flame Sensor
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Best Runner up:
Buy: Part Flame Sensor
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Best For A Furnace:
Buy: Part 2 Wire Flame Sensor
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Best price:
Buy: Packard 2 Wire Flame Sensor
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Best value For money:
Buy: TOMOON 2 Wire Flame Sensor
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Best Overall: Seneca River Trading 2 Wire Flame Sensor

Seneca River Trading 2 Wire Flame Sensor
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Here, we present sensor that manages to win our hearts. It's the seneca river trading 2 wire flame sensor and it's widely considered as one of all-around great sensor you can buy. The Rheem furnace is super touchy and eats one per season. It will fit all the Rheem rgra classic 90 plus models. It has a thin plating on it, the bi-metallic portion of a thermocouple. It is coated with impurities from the gas over time and stops "sensing" the heat properly. The tip has a coating of some sort to make it last longer.

This is just a “clean” unit able to sense the heat from the flame and give proper feedback to the furnace electronics safety system. It is the correct flame sensor for your unit.

Why We Like This:
  • Helps keep the oil film from gas off
  • Insulated ” with impurities in the gas
  • Exact replacement flawless function, easy to replace

Best Runner up: Part Flame Sensor

Part Flame Sensor
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We are personally inclined towards part flame sensor, it is not so pricy, but it overachieves its purpose and outstanding in important aspects. It's a common part of modern gas furnaces. It is just a flame sensor. This is a Brand New Furnace Flame Sensor. It's easy to remove and a lot of times all they need is a little cleaning with fine sand paper. It is great to have on hand to fix the furnance when. It is pretty easy to change and saves you the cost of a service call.

Why We Like This:
  • Perfect oem replacement for goodman furnace
  • Good brand reputation

Best For A Furnace: Part 2 Wire Flame Sensor

Part 2 Wire Flame Sensor
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If your furnace starts up when the flame begins and the furnace shuts down, it’s the flame sensor. It measures 2 1/8" from mounting base to flame sensor tip. The ceramic part on this is a bit longer than the original, but the insertion depth is an exact match. The rod itself is 1-1/2" while the ceramic part under the flange (that gets inserted and is connected to the rod) is 21/. The replacement is as simple as disconnecting the wire, removing a retaining screw, removing the old sensor, and then the reverse for the new sensor.

These operate at very low current so rust stains likely short out that minute current.

Why We Like This:
  • Easy to install and just like the oem
  • Good brand reputation

Best price: Packard 2 Wire Flame Sensor

Packard 2 Wire Flame Sensor
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We would, of course, be remiss if we didn't mention packard 2 wire flame sensor for regular usage. This is an Electric igniter for a hot water heater or Furnace. It can be mounted remotely on multiple burners. It has the wire adaptor but uses a 1/4 inch push on. It is easy to install and works perfect.

Why We Like This:
  • Even has a little extension/adapter for the possible upgraded connector
  • Clean with steel wool, not sand paper
  • Genuine factory oem original for proper fit, easy installation and reliability

Best value For money: TOMOON 2 Wire Flame Sensor

TOMOON 2 Wire Flame Sensor
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We know from years of feedback from readers, customers and amazon sellers, what most people want in a feature-rich yet easy on pocket sensor. The tomoon 2 wire flame sensor is exactly that - it's a simple sensor that hits all the right notes. The 52 W29 Flame Sensor for Lennox/Armstrong/Ducane Furnace is made of high quality durable and wear resistant metal, free from harmful chemicals and tested many times by the manufacturer to be safe for use. The flame sensor senses the furnace flame and ensures that ignition occurs, but if the sensor does not detect the flame, it shuts the gas valve off, preventing raw gas from dumping into your home. It then monitors the flame until the furnace is turned off.

The "wire terminal" has to be replaced with a larger terminal which is easy to replace and available at home depot. There is a small lookout window that you can use to see the flames and make a diagnosis. The flame sensor monitors the burner to detect whether or not a flame is present. It is made of high quality durable and wear resistant metal, free from harmful chemicals and tested many times by the manufacturer to be safe for use.

Why We Like This:
  • Improve the efficiency of the furnace and get a longer service life
  • Slightly larger connector than factory sensor
  • Good brand reputation