
FD77 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $22.75 | Condition is New, Effikal Gas Flow Detector, Michigan Furnace Company #FD77, FREE SHIPPING | 100.0% |
![]() | $14.00 | Condition is New, NEW Effikal Gas Flow Detector; Michigan Furnace Company # FD77, shipping cost = $10.00 | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $24.95 | Condition is New – Open box, NEW Effikal Gas Flow Detector; Michigan Furnace Company # FD77, FREE SHIPPING | 99.9% |
![]() | $44.99 | Condition is New – Open box, NEW EFFIKAL 3/4 FD77-400.00 BTU FLOW DETECTOR, shipping cost = $5.99 | 100.0% |

The Effikal FD77 Gas Flow Detector is a crucial safety component for Michigan furnaces, providing continuous monitoring of the furnace's gas flow to ensure optimal performance and prevent potential hazards. This advanced detector is designed to detect any abnormalities in the gas flow rate, helping to maintain the furnace's efficiency while also safeguarding against gas leaks or other issues that could pose a threat to homeowners.
The FD77 Gas Flow Detector is engineered with a highly sensitive and accurate thermal mass flow meter, which measures the volume and temperature of the gas flow in real-time. This information is then processed by an advanced microprocessor, which evaluates the data against pre-set safety limits and alerts homeowners or service professionals of any potential issues via an easily accessible digital display and audible alarm.
The device is designed for easy installation, with a simple wiring harness that can be connected directly to the furnace's control board. It is also compatible with most Michigan furnace models, making it a versatile and reliable solution for maintaining the safety and efficiency of residential heating systems.
This gas flow detector is built to withstand the demands of continuous operation in harsh furnace environments, with a durable and corrosion-resistant stainless steel housing that protects against dust, moisture, and other potential contaminants. Additionally, the FD77 Gas Flow Detector features a user-friendly interface, allowing homeowners to easily monitor and adjust settings as needed, ensuring the safe and efficient operation of their Michigan furnace.
In summary, the Effikal FD77 Gas Flow Detector is an essential safety device for Michigan furnaces, offering continuous monitoring of gas flow rates, advanced safety features, easy installation, and durable construction. With its accurate and reliable performance, this detector helps to maintain the efficiency and safety of residential heating systems while providing peace of mind for homeowners.
The Effikal FD77 gas flow detector is a critical safety component for Michigan furnaces, ensuring the proper functioning of the gas burning system. Here are some pros and cons of buying this particular model:
Pros:1. Accurate and reliable: The Effikal FD77 is known for its high level of accuracy and reliability in detecting gas flow. This is crucial for ensuring safe and efficient operation of your Michigan furnace.
2. Easy to install: The detector is easy to install and comes with clear instructions. It can be mounted on a wall or installed in a duct, making it flexible for different installation scenarios.
3. Long lifespan: The Effikal FD77 has a long lifespan, with a reported average life of 10-15 years. This means you won't have to replace it frequently, saving you money in the long run.
4. Low maintenance: The detector requires minimal maintenance, making it a convenient choice for homeowners who want to minimize the time and effort spent on furnace maintenance.
Cons:1. Cost: The Effikal FD77 is more expensive than some other gas flow detectors on the market. However, its high level of accuracy, reliability, and long lifespan may justify the investment.
2. Limited compatibility: The Effikal FD77 is specifically designed for use with Michigan furnaces. If you have a different brand or model of furnace, you may need to look for a different detector.
3. No display: The detector does not have a display, which may make it more difficult to troubleshoot any issues that arise. However, it is designed to be connected to a furnace control board, which can provide diagnostic information.
In conclusion, the Effikal FD77 gas flow detector is a high-quality and reliable choice for Michigan furnace owners. Its accuracy, long lifespan, and minimal maintenance requirements make it a worthwhile investment, despite its higher cost compared to some other models. However, its limited compatibility and lack of a display may be drawbacks for some homeowners. Ultimately, the decision to purchase the Effikal FD77 should be based on your specific needs, budget, and compatibility with your furnace.
Recommendation: If you have a Michigan furnace and prioritize accuracy, reliability, and long-term savings, the Effikal FD77 gas flow detector is a strong recommendation. However, if you have a different brand or model of furnace, or if the cost is a significant concern, you may want to explore other options that better fit your needs.
Details:
Delivery date estimates are just that;. This product is designed to accurately detect gas flow and ideal for use in a variety of industrial commercial applications.
specifications maxohvac:
- brand: Effikal
- mpn: Fd77
- part type: Flow Detector Furnace
returns maxohvac:
- policy: no returns
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
seller maxohvac:
- rating: 100.0%
- city: peoria height, illinois
- # reviews: 3311
offer maxohvac:
- started: january 5, 2026
- availability: in stock
- sold #: 8
- prices: $14.00–$44.99
- item condition:
- New
- New – Open box
- in stock #: 4
- options: ship-to-home
shipping maxohvac:
- transit: 3-8 days
- type: fixed
- class: standard
- service: standard
payments maxohvac:
- other
- credit card: discover
- wallet: apple-pay



