extractor as a means of moving hot air

[12fixit]

I am trying to wire an extractor fan to move the hot air from the living room (with a wood heater ) thru my bedroom to my daughters room, its a park home so the walls are like paper! i am going to get a length of 4 inch pipe of some sort thin metal or plastic, the fan has 2 wire terminals permanent live supply and neutral supply in , can i wire it with a floor lamp wire so i can use the in line switch to control it?
really missing my forced air furnace from Canada oh and will the fan be ok if its running a lot rather than just a few mins at a time

 

[flameport]

The fan can certainly be connected to a switch, however that is the least of your problems.
Domestic extractor fans are normally used for cool / room temperature air - using them for heated air will probably cause the motor to overheat and fail.

Unless specifically rated for continuous use, it is likely the fan will overheat anyway, or just wear out very quickly.

Installing an extractor in the same room as any fuel burning appliance will significantly affect the airflow and could easily result in combustion products spilling into the room. This can kill people.

 

[bhm1712]

No you cant use floor lamp cable and switch as it wont be rated appropriately.

I doubt the fan is rated for continual use, but i wouldnt have thought it would hurt anything other than your bank balance to keep it on for extended periods of time.

Whats wrong with the built in switch on the unit?

How far is the run of pipe going to be from the living room to the bedroom? will the heat not be lost by the time it gets there and just be a waste of energy running it?

I doubt that it will work effectively in the way you want to use it.

What kind of extractor is it?

EDIT: i agree with flameports assessment of altering the dynamics of the flue gas with the wood burner. Could be channeling carbon monoxide into your daughters room without realising. I thought you just wanted to suck the living room air out and so the temperature wouldnt be too great, but if your planning to take the hot air from close proximity to the burner or flue, then i also agree that the motor could be damaged

 

[bernardgreen]

An extractor fan taking air from a room with a fire that uses room air for combustion will create serious risks. Fumes from the fire may enter the room and in the worse case hot gases and/or flames ashes etc may be drawn out of the fire if the air flow in the chimney is halted or reversed.

What you might find works is to extract cold air via a duct with a fan from the daughter's bedroom and deliver it into the room with the fire with a second duct ( no fan ) taking warm air from the room with the fire to the daughter's bedroom. This will provide a slightly positive pressure in the room with the fire and thus not compromise the safety of the fire.

 

[12fixit]

i am just moving air from the living room, the fan will be ceiling height and at least 10 feet away from the fire the house is not air tight by any means, so it will be circulating the air around, hopefully make the house less damp. the fan had no switch with it , its a light and fan kit plus the bendy pipe stuff

 

[ban-all-sheds]

i am just moving air from the living room, the fan will be ceiling height and at least 10 feet away from the fire the house is not air tight by any means, so it will be circulating the air around

Given what will happen if you're wrong (death, brain damage etc), let's hope you're right, eh?

 

[Alarm]

Small electric fan heater will suffice.

As above why risk killing your offspring?

 

[flameport]

i am just moving air from the living room, the fan will be ceiling height and at least 10 feet away from the fire the house is not air tight by any means

Distance from the fire is irrelevant, and you should already have a substantial inlet vent elsewhere in the room to provide fresh air when the woodburner is in use.

Fitting an extractor in the same room as any open flue appliance / fire is not only a very bad idea, it is very likely to be prohibited by the manufacturer of the woodburner.