RESIDEO CS8840 Water Heater Pilot Nat Gas Thermopile
( Brand: Resideo ), ( Manufacturer Part Number: CS8840 ), ( Part Type: Water Heater ), ( Power Source: Gas ), ( Items Included: Fittings )
Review RESIDEO Water Heater Pilot Assembly Nat Gas Thermopile
The Resideo CS8840 Water Heater Pilot is a essential component of natural gas water heating systems. This thermopile is designed to provide an electrical signal to the water heater's gas valve, igniting the pilot flame and maintaining it. The thermopile converts the heat from the pilot flame into electrical energy, which is then used to power the gas valve solenoid.
The CS8840 is a rugged and reliable component, engineered to withstand the demanding conditions of a water heater environment. It is constructed of high-quality materials, including a corrosion-resistant ceramic element and a durable stainless steel housing. The thermopile is also designed to be self-cleaning, ensuring optimal performance and longevity.
This thermopile is specifically designed for use with Resideo CS series water heaters, and is a direct replacement for the original equipment manufacturer's part. It is easy to install, with a straightforward plug-and-play design that allows for quick and simple replacement of the old component. The CS8840 is also backed by a comprehensive warranty, providing peace of mind and protection against manufacturing defects.
In summary, the Resideo CS8840 Water Heater Pilot is a high-quality and durable thermopile designed to provide reliable ignition and maintain the pilot flame for natural gas water heating systems. Its self-cleaning design ensures optimal performance, and its easy installation and comprehensive warranty make it a smart choice for water heater repair or replacement.
The Resideo CS8840 water heater is a natural gas model with a pilot-operated thermopile ignition system. Here are some pros and cons of buying this water heater:
Pros:1. Energy Efficiency: The thermopile ignition system is more energy-efficient compared to traditional standing pilot lights. It only uses power when the water heater is heating water, reducing energy waste.
2. Reliable Ignition: The thermopile ignition system is known for its reliability. It generates a small electrical current when the pilot flame heats the thermopile, which in turn ignites the main burner.
3. Easy Installation: The CS8840 is a conventional water heater, and its natural gas connection makes it a suitable replacement for older water heaters. The installation process is straightforward for professionals.
4. Safety Features: This water heater comes with safety features such as a high-limit thermostat, a temperature and pressure relief valve, and an anode rod to prevent corrosion.
5. Affordable: The CS8840 is an affordable water heater option for those looking for a reliable and energy-efficient unit.
Cons:1. Limited Capacity: The CS8840 has a capacity of 40 or 50 gallons, which may not be suitable for larger households.
2. Maintenance: The pilot assembly may require occasional cleaning or replacement to ensure proper function.
3. No Energy Star Rating: Although energy-efficient, the CS8840 does not have an Energy Star rating.
4. No Digital Display: The water heater does not have a digital display, making it difficult to monitor temperature settings.
In conclusion, the Resideo CS8840 water heater is a reliable and energy-efficient option for smaller households looking for a conventional natural gas water heater. Its thermopile ignition system is both energy-efficient and reliable, making it a cost-effective choice. However, its limited capacity, maintenance requirements, and lack of digital display are worth considering before making a purchase.
Recommendation:If you have a smaller household and are looking for a conventional natural gas water heater with an energy-efficient pilot ignition system, then the Resideo CS8840 is a solid choice. However, if you have a larger household or prioritize a digital display and Energy Star rating, you may want to consider other options.
Details:
There are separate LP and natural gas model's. The CS8840 is a primary aerated 500-600 btu /hr piglet burner. The CS8840 Pilot Burner Assemblies provide standing pilot ignition of the main burner and power for WV8840 water heater control. The CS8840 Pilot Burner was designed for gas fired hot water tank heating applications.
part #: cs8840 prices
- $120.00-$299.99
specifications wateheat:
- brand: Resideo
- mpn: Cs8840
- part type: Water Heater
- power source: Gas
- items included: Fittings
payments wateheat:
- other
- wallet: Apple-pay
- credit card: Diners-club
general wateheat:
- condition: New
- Heating, Cooling Air > Water Heaters > Water Heater Parts
offer wateheat:
- availability: In Stock
- sold: 0
- options: Ship-to-home
- started: December 20, 2025
- best offers: True
shipping wateheat:
- cost: $15.00
- type: Fixed
- transit: 6-11 Days
- class: Standard
- carrier: USPS
- service: USPS Ground Advantage
returns wateheat:
- policy: No Returns
seller wateheat:
- # reviews: 87
- city: Olathe, Kansas
- rating: 100.0%
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