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My property has 2 furnaces installed by Extreme. Both are heat pump with natural gas backup. Both furnaces (one 4 years old, one just installed) were done promptly and are what we expected. I would gladly endorse and recommend Extreme.
R. Papajcik - Beavercreek
We are simply delighted with the new high efficient system we had installed by Extreme’s One Hour, but we were blown away by the amount of money we saved! The rebates and credits are great but the tax match made our decision to choose One Hour an easy one. Thanks One Hour!
Barry & Terri Threlkeld - Centerville
Very pleased with the service provided by Extreme. I’ve been recommending you to co-workers and friends. I also submitted an "A" rating on Angies List, to help future customers choose Extreme Heating and Cooling.
R. Steffek - Centerville
Steve Moore & his crew were outstanding!! Two months after the install and I know I can call with questions or issues but I do not have any!!!!
…. Great team!
… Great company!!!
C. Batchelor - Beavercreek
After getting multiple estimates to replace my air conditioning system One Hour Heating had the best product for the best price thanks to their tax match program and did a fantastic job of installing my new system.
Monte Murrel - Beavercreek
Wow, Extreme’s One Hour Heating and Air are true experts in their field. My family and I had suffered from uneven, uncomfortable temperature throughout our entire home for years. Not only did One Hour fix this issue completely while installing my new system, I saved a small fortune. With the tax match program, rebates and discounts from One Hour I saved over $3,500.00!
Jim Kroger - Centerville
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Indoor Air Quality

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M.E.R.V. Application Examples

All air filters are not equal. Let Extreme's One Hour Heating and Air be your source for all your air filtration needs. Our consultants can provide you with the air filtration system that best fits your requirements and your budget. Call Extreme's One Hour Heating and Air today to talk about how you can breathe easier with a new air filtration unit.

The chart below shows different examples of air filters and their M.E.R.V. ratings. Filters with low M.E.R.V. ratings are less effective than filters with higher ratings. The rating scale is from 1 to 20. A rating of 1 is the lowest and 20 is the highest.

Filter RatingExamples of Filters in this Range
M.E.R.V. 1-6Disposable fiberglass, aluminum mesh, hog hair, cheap pleats, elctrostatics
M.E.R.V. 7-10Disposable synthetics, extened surface media like Space Guards and Air Bears
M.E.R.V. 9-11Allergy grade 1" Pleats (3M)
M.E.R.V. 12Collects particles above 1 micron, 3M Filtrete Ultra / Fantastic Filter
M.E.R.V. 13-16Starts collecting less than 1 micron. MicroPower Guard is Equivalent to MERV 14
M.E.R.V. 15MGAS III
M.E.R.V. 17-20Type A, C, D, F HEPA Filters, PureSept HEPA is MERV 17