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Tjernlund - Super Savings! Save up to 38%


Super Savings! Up to 38% off on Tjernlund products at In The National Interest. Hurry! Limited time offers. Offers valid only while supplies last.



Tjernlund 950-8804 Replacement UC1 Circuit Board for Draft Inducers and Power Venters
Tjernlund 950-8804 Replacement UC1 Circuit Board for Draft Inducers and Power Venters
In Stock
$168.00
$136.48
You Save: 19%

mpn: 950-8804, ean: 0080956489067,

Replacement component for stated Tjernlund models.Official proprietary Tjernlund replacement part. Includes related mounting hardware and instructions (when applicable). Compatible with all past year models. ...


Tjernlund VP-2F Side Wall Vent System for Water Heaters Up to 60,000 BTU
Tjernlund VP-2F Side Wall Vent System for Water Heaters Up to 60,000 BTU
SKU: #6014
In Stock
$554.99
$413.17
You Save: 26%

sku: 6014, mpn: VP-2F, ean: 0080956955449,

Your best choice for electric to gas water heater conversions, renovations, new construction and deteriorated chimneys.Vents any brand or type of millivolt gas water heater. Locate heater anywhere up to 75 feet from outside wall. No electrician neede...


Tjernlund PS1503 Duct Airstat Pressure Switch
Tjernlund PS1503 Duct Airstat Pressure Switch
In Stock
$36.99

mpn: PS1503, ean: 0080956890009,

Senses duct pressure via ¼” hole in duct between main blower and Duct Booster Fan. Pressure from main blower actuates switch to operate Duct Booster fan automatically. 120 Volt, 15 AMP max. Makes on pressure rise of +.05 ± .02” W.C.Duct air pre...


Tjernlund X2D  Model Products Xchanger Reversible Basement Fans
Tjernlund X2D Model Products Xchanger Reversible Basement Fans
In Stock
$297.99
$184.95
You Save: 38%

mpn: X2D, ean: 0723434827929,

Cure damp, musty basements through automatic ventilation. Reversible fans can be positioned for 100% exhaust, supply or for balanced air exchange. Runs on only 40 watts compared to 1,000 watts consumed by a typical dehumidifier. Installs in a 5.25”...


Tjernlund 950-3306 Quiet Fireplace Blower Replacement Fan Gas Insert, 10'', 75 CFM
Tjernlund 950-3306 Quiet Fireplace Blower Replacement Fan Gas Insert, 10", 75 CFM
In Stock
$54.13

mpn: 950-3306, ean: 0080956201072,

This type of professional grade tangential blower is commonly used to help distribute heat from fireplaces and stoves. These are extremely quiet (1.4 Sones) and won't be heard over the fire crackling. Use it to push heat away from your fireplace or s...



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