The White Heat Keeper Kit from Dundas Jafine is a dual-purpose tool designed to redirect dryer heat back into the home during winter months while filtering out lint. The housing is made of high-impact polystyrene (HIPS), featuring a simple "Summer/Winter" toggle lever. This allows you to vent exhaust outside when it's warm and keep the heat inside when it's cold, which also helps supplement indoor humidity in dry climates.
In terms of build quality, HIPS is a cost-effective material, but it can be susceptible to warping if the dryer exhaust consistently reaches very high temperatures. The internal diverter flap uses a thin polymer hinge that may experience "memory creep" over time, potentially sticking in one position. Additionally, the fine nylon filter mesh is highly effective at capturing lint but must be cleaned every one to two cycles to prevent back-pressure from affecting dryer performance.
A critical safety reality: this kit is designed for electric dryers only. It should never be used with gas dryers due to the risk of carbon monoxide being vented into the living space. The steel tensioners provided for the hose are reliable, but the plastic brackets should be handled with care to avoid cracking during installation. This unit is a practical addition for those looking to improve energy efficiency in seasonal climates.
- Tool-free access for quick filter cleaning.
- Helps maintain comfortable humidity levels in winter.
- Requires a well-ventilated laundry area to prevent excessive moisture buildup.
If you are looking for a simpler lint-only solution without the heat-redirection feature, the standard Dundas Jafine Lint Trap may be more suitable.
Check out our specialized wool dryer balls and lint catchers for more ways to optimize your laundry cycle.
