
R1970 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $37.32 | Condition is New, BASO 40" ODS Thermocouple R1970 Vent-Free Heater Pilot Sensor Replacement, shipping cost = $22.37 | 97.8% |

The Baso R1970 40 ODS Thermocouple Vent-Free Heater Pilot Sensor is a crucial component in the safe and efficient operation of vent-free heaters. This sensor is designed to measure the temperature of the pilot flame and ensure that it stays within the safe operating range.
The R1970 sensor is a type K thermocouple, which means it consists of two wires made of different metals, specifically Chromel and Alumel. When the sensor is exposed to a temperature difference between the junction and the reference junction, an electromotive force is generated, which can be measured and converted into a temperature reading.
This sensor is specifically designed for use in vent-free heating systems, which do not vent combustion gases to the outside. The 40 ODS designation refers to the oxygen depletion sensor (ODS) function of the sensor. ODS sensors are designed to detect when the oxygen level in the room drops too low, which can be a hazard in vent-free heating systems. When the ODS sensor detects low oxygen levels, it shuts off the heater to prevent the production of carbon monoxide.
The R1970 sensor is made of high-quality materials to ensure accuracy and durability. It has a temperature range of -40 F to 750 F (-40 C to 400 C) and a high accuracy of 2.5 F ( 1.4 C). The sensor is also equipped with a protective sheath to prevent physical damage and ensure a long service life.
Installing the R1970 sensor is a relatively simple process, but it should only be done by a qualified technician to ensure safety. The sensor is typically connected to the control module of the heater using the provided wires, and the wires are secured in place with wire nuts or other appropriate connectors.
In summary, the Baso R1970 40 ODS Thermocouple Vent-Free Heater Pilot Sensor is an essential safety component in vent-free heating systems. It measures the temperature of the pilot flame and detects oxygen depletion to ensure safe and efficient operation. The sensor is made of high-quality materials, has a wide temperature range, and is easy to install.
The Baso R1970 40 ODS thermocouple vent-free heater pilot sensor is a critical component in the safe and efficient operation of vent-free heaters, ensuring the accurate measurement of temperature for the pilot flame. Here are some pros and cons to consider before purchasing this thermocouple:
Pros:1. Accuracy: The Baso R1970 40 ODS thermocouple is designed to provide precise temperature readings for the heater's pilot flame. This can lead to better fuel efficiency and improved safety.
2. Compatibility: This thermocouple is compatible with a wide range of vent-free heaters, making it a versatile option for various heating systems.
3. Durability: Made from high-quality materials, the Baso R1970 40 ODS thermocouple is built to withstand the rigors of continuous use in a heating application.
4. Easy installation: The thermocouple is easy to install, requiring minimal tools and technical expertise.
Cons:1. Cost: Compared to some other thermocouples on the market, the Baso R1970 40 ODS model may be more expensive.
2. Sensitivity to damage: The thermocouple's thin wires can be susceptible to damage during installation or regular use. Proper care and handling are essential to ensure its longevity.
3. Limited brand availability: While the Baso R1970 40 ODS thermocouple is a reliable option, it may not be as widely available as some other brands, making it necessary to order online or from specialized heating supply stores.
In conclusion, the Baso R1970 40 ODS thermocouple is a high-quality, accurate, and durable component for vent-free heater systems. Its compatibility with various heating systems and ease of installation are additional benefits. However, its cost and potential sensitivity to damage may be drawbacks for some consumers. Ultimately, if you require a reliable thermocouple for your vent-free heater, the Baso R1970 40 ODS model is a solid choice.
Recommendation: I would recommend the Baso R1970 40 ODS thermocouple for those seeking a precise, accurate, and durable component for their vent-free heater system. Its compatibility with various heating systems and easy installation make it a versatile and convenient option for many users. While its cost and potential sensitivity to damage may be concerns for some, the overall benefits and reliability of this thermocouple make it a worthwhile investment for maintaining the safety and efficiency of your vent-free heating system.
Details:
Baso 40 single-wire ods thermocouple mfg# R1970: this R1970 40-inch thermocouple is a high-quality replacement part designed for vent-free gas heaters and fireplaces that use an oxygen depletion sensor pilot assembly. The extended 40 length provides flexibility for various heater layouts and cabinet designs. Gas fireplaces using ods safety systems. Ensures safe pilot operation for oxygen depletion sensing systems.
Oem-quality Baso replacement part. Common applications: empire vent-free room heaters. Baso brand ods pilot assemblies. Heavy-duty copper for long-lasting performance.
Designed for vent-free heaters, fireplaces, and gas appliances. Key features: 40 single-wire ods thermocouple. Built from durable copper, this thermocouple delivers dependable pilot flame sensing and is commonly used in empire vent-free heaters, Baso ods assemblies, other compatible vent-free LP or natural gas systems. Compatible with LP and natural gas systems.
Vent-free gas wall heaters.
specifications maxohvac:
- brand: Baso
- mpn: R1970
- type: Ods Thermocouple / Pilot Thermocouple
- unit type: Unit
- country of origin: United States
payments maxohvac:
- other
- wallet: paypal
- credit card: mastercard
seller maxohvac:
- city: brandon, mississippi
- # reviews: 1166
- rating: 96.0%
offer maxohvac:
- availability: in stock
- best offers: true
- price: $37.32
- item condition: New
- started: november 21, 2025
- in stock #: 1
- options: ship-to-home
- sold #: 10
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
shipping maxohvac:
- service: ups ground saver, ups ground, fedex ground economy
- type: calculated
- transit: 12-18 days
- class: economy, standard
- carrier: ups, fedex
returns maxohvac:
- time: 14 days
- paid by: buyer
- method: money back
- policy: returns accepted
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