This approach can be very effective.
Doorway fans to move heat.
This fan s telescoping housing accommodates wall depths of 3 3 4 in.
The most popular doorway fans are the entreeair from suncourt and the canadian doorway fan from canarm.
There are programmable furnace fan timers on the market which address these concerns.
This fan comes in an attractive white finish to match your decor.
Note that furnace fans can be costly to run continuously and they do create a constant background noise.
The best thing to do is to create a cross draft and what better way to attain this than imperial manufacturing doorway booster fan.
With high level cold air returns the furnace fan can be operated continuously on low speed to move heat around.
This could be further rooms or even into the hall so the warm air can heat the other rooms.
Circulate warm or cool air from 1 room to another using this thru wall room to room fan 7 5 8 in.
Use this room to room circulating fan to move heat around the house ideal for temperature regulation in homes heated with a woodstove pellet stove or fireplace can be mounted in a doorway with hardware included easily reversible single speed 55 cfm 1100 rpm lifelong lubricated motor rated for continuous use single speed.
The suncourt entreeair door frame fan white helps gently circulate warm or cool air from one room to another and is ideal for use in rooms with a fireplace or air conditioner.
The portable specialty fan mounts easily to most door frames with 2 screws included and still allows the door to open and shut.
Amazon s choice for doorway fans to move heat ac infinity axial s1225d dual 120mm muffin fan with speed controller for doorway room to room wood stove fireplace circulation projects 4 4 out of 5 stars 612.
Designed to fit in any doorway corner it gently circulates air from room to room creating the ideal temperature conditions.