CHK100ZW Dryer Vent Heat Keeper Saver Dundas Jafine Winter and Summer Positions


Product Description

The Dudas Jafine Heat Keeper Kit allows you to use your electric dryer to direct warm, moist heat back into your home in winter AND direct hot, humid air outdoors in the summer.

Features and Benefits:

  • Quick and easy install
  • Extra source of heat for cold winter months
  • Deflects warm air outside to help keep home cool in summer
  • Saves money on energy bills
  • Removable lint cap for cleaning to keep Heat Keeper performance efficient and safe
  • Convenient summer and winter setting
  • Safety valve eliminates back pressure
  • Two plastic clamps included allows you to fasten the Heat Keeper securely to both ends of the dryer duct
  • UL approved for safe dryer venting
  • Made in the U.S.A. and Canada

Product Specifications: 

  • Product SKU: CHK100ZW
  • Size: Fits 4 electric dryer ducts
  • Color: White
  • Weight:10.7 ounces
  • Dimensions: 7.5 x 4.5 x 5 inches


All merchandise is warranted to be free from defects in workmanship and material for one year from date of purchase. Manufacturer will replace or repair at their option

Kit Includes: One Heat Keeper Air Diverter, Two 4" Adjustable Plastic Mounting Straps and Removable Lint Filter Cap. (Please note: Installation Instructions are printed on the box)

Installation Tips:

The Dundas Jafine Heat Keeper Kit is easy and quick to install. Here are a few options to help you with installation:

Tools needed (not included in the kit): Wire cutters and utility knife

Download and/or print instructions:, 

View video instructions:

Do not use on gas dryers. Gas dryers can sometimes have fumes which would create a carbon monoxide issue.

Product Reviews

Write a Review
  • 4
    Works when you need a three pipe branch out.

    Posted by Jon Byers on 10th Jan 2021

    Door in flapper could latch better. Had to tape it to stay shut.

  • 4
    Heat Keeper

    Posted by Philip Kirchman on 8th Apr 2018

    Although light weight the product seem to work very well. I would have liked to seen some mounting tabs and worm clamps included. But that said I was pleased with the product.

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