The best thing to do is to create a cross draft and what better way to attain this than imperial manufacturing doorway booster fan.
Doorway fans to move heat.
Equipped with 2 speed options this fan allows you to adjust the air transferring power to quickly change or maintain temperatures in adjoining rooms.
This fan s telescoping housing accommodates wall depths of 3 3 4 in.
Designed to fit in any doorway corner it gently circulates air from room to room creating the ideal temperature conditions.
With high level cold air returns the furnace fan can be operated continuously on low speed to move heat around.
This approach can be very effective.
This fan comes in an attractive white finish to match your decor.
The portable specialty fan mounts easily to most door frames with 2 screws included and still allows the door to open and shut.
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.
Ac infinity axial s1238d dual 120mm muffin fan with speed controller ul certified for doorway room to room wood stove fireplace circulation projects.
Circulate warm or cool air from 1 room to another using this thru wall room to room fan 7 5 8 in.
This could be further rooms or even into the hall so the warm air can heat the other rooms.
Note that furnace fans can be costly to run continuously and they do create a constant background noise.
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 most popular doorway fans are the entreeair from suncourt and the canadian doorway fan from canarm.