Since 1938 Tjernlund has provided the highest quality engineered and manufactured products that solve exhaust, ventilation and heating/cooling problems. Current products include: indoor air quality products and accessories such as the UnderAire™ Crawl Space Fans, XchangeR™ Reversible Basement Ventilation Fans, Radon VAC™ mitigation products, Duct Booster® fans, Dryer Duct Booster® fans, AireShare™ transfer fans, hearth products, draft inducers and side wall power venters for gas and oil heating systems, In-Forcer™ powered combustion air intakes plus interlock controls & accessories. Over four generations our mission has been to provide quality engineered and manufactured products that solve exhaust, ventilation and heating/cooling problems. Paramount to our success is providing the technical support necessary so that our products are easy to select and install. We are dedicated to serving your special exhaust and ventilation needs.
Featured Products
DUCT BOOSTER® FANS INCREASE COMFORT
Duct-Booster® Fans economically boost air flow, increase comfort in hard to heat or cool rooms. Also exhaust unwanted heat, humidity, odors or other air-borne contaminants.
RADON VAC™ SIDE WALL RADON EXHAUST SYSTEM REDUCES INSTALLATION COSTS
The effective, affordable way to reduce radon by sidewall venting. Eliminates intrusive PVC pipe runs vertically through living areas or ugly PVC on home exterior.
UnderAire™ Crawl Space Ventilation Fans Prevent Mold & Mildew
Automatically circulate fresh outdoor air underneath homes & porches. Prevents excessive humidity levels in crawl spaces that leads to mold, mildew, structure decay and insects.
No-Clog Dryer Duct Booster® meets UL705 DEDPV & IRC-2015 requirements
Dryer Duct Booster® Saves significant energy - reduces drying times 60% or more. Reduces lint build-up, dust & fire hazards by maintaining proper exhaust velocity.
Improve IAQ, meet ventilation requirements Cure Damp-Musty Basements / Cellars
Reversible XCHANGER™ Basement Fans improve IAQ, conforms to Ashrae ventilation standards. Unique, energy-saving fan ventilates basements or other areas of stale, musty or smelly air.
AIRESHARE™ TRANSFER FANS INCREASE ROOM COMFORT, SAVE ENERGY
Ultra quiet, AireShare™ Room-to-Room & Level-to-Level transfer fans distribute heated/cooled air through interior walls/floors to too hot or cold rooms. Keeps temperature consistent between rooms.
More from JLC
Tjernlund Products XChanger 90 CFM Basement Fans
The XChanger's two reversible 90 cfm basement fans vent stale air to the outdoors, draw fresh outside air into the home, or do both when positioned in opposite directions.
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Dryer Duct Booster
With the Dryer Duct Booster you can set up a laundry room almost anywhere in the house without worrying about the length of the exhaust run or the number of bends.
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Lower-Cost Basement Ventilator
Many people don't realize that a dehumidifier is as costly to operate as a room air conditioner.
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