AprilAire Radon Mitigation Fan Kit with ARN25F Fan
Product Highlights
6"
120v
5 Year Warranty
Description
The AprilAire ARN25K Radon Mitigation Kit includes the ARN25F Radon Mitigation Fan, an ARNALM Radon System Alarm, an ARN05M Manometer, and coupling(s). The AprilAire ARN25F Radon Mitigation Fan is ideal for most sub-slab radon mitigation systems with a basement or slab size between 1500 and 2500 square feet.
Product Features:
- Energy efficient
- Ultra-quiet operation
- Meets all electrical code requirements
- Housing that stays white
- Water-hardened motorized impeller
- Seams sealed to inhibit radon leakage
- ETL Listed - for indoor or outdoor use
- Thermally protected motor
- Rated for commercial and residential use
- 6" Fan Duct Diameter
- 95-139 watts
- 5-year warranty
AprilAire is on a mission to make homes healthy. We believe everyone deserves Healthy Air and envision a future with Healthy Air in every home.
At AprilAire, our mission has always been to make homes healthy through intuitive design and professional-grade solutions — because healthy homes are the foundation for healthy people, families, and communities.
Detailed Overview: AprilAire ARN25K Radon Mitigation Kit
Technical Specifications
| Parameter | Value |
|---|---|
| Fan Model | ARN25F |
| Duct Diameter | 6 inches |
| Voltage | 120V |
| Power Draw | 95–139 watts |
| Recommended Coverage | 1,500–2,500 sq. ft. basement/slab area |
| Certification | ETL Listed (indoor/outdoor rated) |
| Motor | Thermally protected, water-hardened impeller |
| Warranty | 5-year manufacturer warranty |
| Kit Includes | ARN25F fan, ARNALM system alarm, ARN05M manometer, coupling(s) |
How a Radon Mitigation System Works
A sub-slab radon mitigation system uses negative pressure to intercept radon gas before it enters your living space. A PVC pipe is routed from beneath the concrete slab (or crawlspace) up through the house and out above the roofline. The ARN25F fan continuously draws soil gas from underneath the foundation and safely vents it outdoors, keeping indoor radon concentrations below the EPA action level of 4 pCi/L.
The included ARNALM alarm monitors system pressure and immediately alerts you if the fan fails or airflow is interrupted — so a malfunction never goes unnoticed. The ARN05M manometer provides a simple visual gauge to confirm the system is actively pulling vacuum at all times.
Why Choose the AprilAire ARN25F
- Ultra-quiet operation — designed to run continuously, 24/7, without disrupting your household
- Energy efficient — low wattage draw keeps operating costs minimal for round-the-clock use
- Corrosion- and radon-leak-resistant housing — sealed seams prevent gas leakage back into the fan compartment; housing stays white and doesn't yellow over time
- Rated for residential and commercial applications — suitable for homes, schools, and commercial buildings
- Backed by a full 5-year warranty for long-term peace of mind
When Do You Need This System?
If a radon test — such as our Airthings Wave Radon 2950 or a short-term lab test — shows levels at or above 4 pCi/L, the EPA recommends installing an active mitigation system. Homes with a basement, crawlspace, or slab-on-grade foundation are especially prone to radon intrusion through foundation cracks, sump pits, and utility penetrations.
Professional Installation with Emergency Plumbing
Proper radon mitigation isn't a DIY project — fan placement, duct routing, sealing, and pressure testing all affect system performance. Our licensed technicians will:
- Evaluate your foundation type and radon entry points
- Design a sub-slab depressurization layout suited to your home's size and layout
- Install the ARN25F fan, alarm, and manometer per AprilAire and EPA/AARST guidelines
- Perform post-installation testing to confirm radon levels have dropped below the action level
- Provide documentation for real estate transactions or insurance purposes, if needed
We also offer the Fantech RN Series 4EC-3 Inline Radon Fan as an alternative option for homes with different sizing or noise requirements.
Frequently Asked Questions
How long does installation take?
A typical single-fan sub-slab system can usually be installed in a single day, depending on foundation access and duct routing.
Will I hear the fan running?
No — the ARN25F is engineered for ultra-quiet, continuous operation and is typically installed in an attic, garage, or exterior wall where noise is a non-issue.
Do I need to retest after installation?
Yes. We recommend a follow-up radon test 24–48 hours after installation, and periodic retesting every 2 years or after any structural changes to the home.
With multiple locations throughout North Shore and Northwest suburbs of Chicago, Illinois, Emergency Plumbing offers promt and professional plumbing services.
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