--- title: How Much It Costs to Run a Radon Fan canonical: "https://radonmitigationyorkpa.net/radon-guide/radon-fan-electricity-cost/" pubDate: "2026-10-01T00:00:00.000Z" updatedDate: "2026-10-03T00:18:00.000Z" author: Radon Mitigation York PA description: "How much electricity a radon fan uses and what it costs per month at Pennsylvania rates, with a simple table by fan wattage." --- # How Much It Costs to Run a Radon Fan Radon fan electricity cost is usually about $2 to $25 a month, separate from the [upfront price of radon mitigation](/radon-mitigation-cost/). Most residential radon fans draw roughly 15 to 150 watts and run 24 hours a day. At an all-in electric rate of 20 cents per kWh, a typical 50 to 75 watt fan costs about $7 to $11 a month, or roughly $90 to $130 a year. ## How much does it cost to run a radon fan? Radon fans run all the time, every day. That sounds expensive, but the fans are small. Most use less power than an old incandescent light bulb. Here is the simple math: 1. **Watts x 730 hours** (the average hours in a month) / 1,000 = kWh per month. 2. **kWh per month x your electric rate** = monthly cost. ## Monthly cost by fan size | Fan wattage | kWh per month | At 15 cents/kWh | At 20 cents/kWh | At 25 cents/kWh | |---|---|---|---|---| | 15 W (low-power fan) | 11 | $1.64 | $2.19 | $2.74 | | 50 W | 37 | $5.47 | $7.30 | $9.12 | | 75 W | 55 | $8.21 | $10.95 | $13.69 | | 100 W | 73 | $10.95 | $14.60 | $18.25 | | 150 W (high-suction fan) | 110 | $16.43 | $21.90 | $27.38 | Published guides land in the same area. Angi lists about $100 to $300 a year to run a radon system, and HomeGuide lists about $70 to $80 a year for a typical fan. ## What rate should you use? Look at your electric bill and divide the total charge by the kWh used. That gives you your all-in rate, which includes both supply and delivery charges. Met-Ed serves much of the York area. Met-Ed's residential "price to compare," which covers only the electricity supply portion of the bill, is 13.954 cents per kWh as of June 1, 2026, according to FirstEnergy. Delivery charges come on top of that, which is why the table shows rates from 15 to 25 cents. For comparison, U.S. Energy Information Administration data puts the average all-in residential rate in Pennsylvania at about 21 to 22 cents per kWh in mid-2026. ## What affects how much power your fan uses ### Fan model Fans come in different sizes. Low-airflow, high-suction fans suit tight soil. High-airflow fans suit loose gravel or large slabs. Your installer picks the fan that gets your home below the EPA action level of 4.0 pCi/L, not the biggest one. ### Soil and slab Homes with tight clay soil or several suction points may need a stronger fan. Older York homes with stone foundations often fall into this group. ### Leaks in the system Unsealed cracks, an open sump or a loose coupling make the fan work against more air. Good sealing helps the fan do its job, and it keeps more of your heated or cooled basement air inside. ## Heating and cooling losses A radon system can pull a small amount of conditioned air from your basement through cracks and gaps. That can add a little to your heating and cooling bill. Good sealing keeps that loss small. The [EPA Citizen's Guide to Radon](https://www.epa.gov/sites/default/files/2016-12/documents/2016_a_citizens_guide_to_radon.pdf) covers how mitigation systems work and what to expect. ## Should you turn the fan off to save money? No. A radon fan only lowers radon while it runs. Turning it off lets levels climb back up, often within hours. York County is in EPA Radon Zone 1, and EPA estimates radon causes about 21,000 lung cancer deaths a year in the U.S. A few dollars a month is a small cost to keep levels down. ## Does insurance or anything else help with the cost? The running cost is yours to pay, like any other appliance. Insurance generally does not cover radon systems either. See our guide on [does homeowners insurance cover radon mitigation](/radon-guide/does-insurance-cover-radon-mitigation/) for the details and the few exceptions. ## Key takeaways - Most radon fans draw about 15 to 150 watts and run all day. - Monthly cost is usually about $2 to $25, depending on fan size and your rate. - Use your own bill to find your all-in rate per kWh. - Do not turn the fan off. It only works while it runs. ## Frequently Asked Questions ### Will a radon fan raise my electric bill a lot? Usually not. A typical fan costs about the same per month as running a few LED light bulbs around the clock. ### Do energy-efficient radon fans exist? Yes. Some newer fans use less power for the same suction. Ask about the fan's wattage when you get a quote. ### How can I tell if my fan is running? Check the manometer on the pipe. If the liquid levels are uneven, the fan is pulling suction. ## Next step Running cost is only one part of the total. Call [(717) 356-3035](tel:+17173563035) any time for a same-day callback and a free written quote.