To Home Page
  Home  |  Site Map  
     

Types of Systems

This chart is from the EPA Consumer's Guide To Radon Reduction.

It lists different types of radon reduction, effectiveness and cost range based on national averages. These averages reflect pricing from the time this table was produced (pre 2000).

Technique

Typical Radon Reduction

Typical Range of Installation Costs (Contractor)

Typical Operating Cost Range for Fan Electricity & Heated/Cooled Air Loss (Annual)

Comments

Subslab Suction (Subslab Depressurization)

50-99%

$800-2500

$75-175

Works best if air can move easily in material under slab

Passive Subslab Suction

30-70%

$550-2250

There may be some energy penalties

May be more effective in cold climates; not as effective as active subslab suction

Draintile Suction

50-99%

$800-1700

$75-175

Works best if draintiles form complete loop around house

Blockwall Suction

50-99%

$1500-3000

$150-300

Only in houses with hollow blockwalls; requires sealing of major openings

Sump Hole Suction

50-99%

$800-2500

$100-225

Works best if air moves easily to sump under slab; or if draintiles form complete loop

Submembrane Depressurization in a crawl space

50-99%

$1000-2500

$70-175

Less heat loss than natural ventilation in cold winter climate

Natural Ventilation in a crawl space

0-50%

None $200-500 if additional vents installed

There may be some energy penalties

Costs variable

Sealing of Radon Entry Routes

See comments

$100-2000

None

Normally only used with other techniques; proper materials & installation required

House (Basement) Pressurization

50-99%

$500-1500

$150-500

Works best with tight basement isolated from outdoors & upper floors

Natural Ventilation

Variable

None $200-500 if additional vents installed

$100-700

Significant heated/cooled air loss; operating costs depend on utility rates & amount of ventilation

Heat Recovery Ventilation

Variable/See coments

$1200-2500

$75-500 for continuous operation

Limited use; effectiveness limited by radon concentration and the amount of ventilation air available for dilution by the HRV. Best applied to limited-space areas like basements.

Water Systems:

Aeration

95-99%

$3000-4500

$50-150

More efficient than GAC; requires annual cleaning to maintain effectiveness & to prevent contamination; carefully vent system

Granular Activated Carbon (GAC)

85-99%

$1000-3000

None

Less efficient for higher levels than aeration; use for moderate levels (around 5000 pCi/L or less); radon byproducts can build on carbon may need radiation shield around tank & care in disposal

To Home Page Phone: (815)344-1100
radongas@earthlink.net
For your
Radon Reduction System