Ducted Heat Transfer System from Fireplace.
Ducted Heat Transfer System from Fireplace.
Why is the intake for heat transfer better near the ceiling if the floor directly in front of the fireplace is hotter?
Studying Social Science: Psyc major, Comms minor. Took a year off work, Film School teacher (ask me questions about image capture devices and image capture pipelines eg bitrate and codecs) to travel around Australia with my partner and four kids. Toyota LandCrusier 4.5L V8 twin turbo, Jayco Sterling.
RE: Ducted Heat Transfer System from Fireplace.
A good solution is a hollow fireplace rack that takes air from inside the room and is ducted out of the fireplace. It is directly heated by the fire and this allows closed doors on the fireplace to limit the chances of a fire escaping the fireplace.
RE: Ducted Heat Transfer System from Fireplace.
Studying Social Science: Psyc major, Comms minor. Took a year off work, Film School teacher (ask me questions about image capture devices and image capture pipelines eg bitrate and codecs) to travel around Australia with my partner and four kids. Toyota LandCrusier 4.5L V8 twin turbo, Jayco Sterling.
RE: Ducted Heat Transfer System from Fireplace.
By the way, open fireplaces are extremely inefficient for heating. A wood stove or fireplace insert will give you several times the heat output from the same fuel. An open fireplace draws a lot of excess air into the chimney, and this air must be replaced by cold outside air coming into other areas of the house, making them cold. Is this the problem you are trying to solve with your ducting? At least have a duct supply outside air directly directly to the fire rather than to the occupants of the house.
RE: Ducted Heat Transfer System from Fireplace.
RE: Ducted Heat Transfer System from Fireplace.
@Compositepro you're right I'm trying to move heat from the room with the fireplace insert to the rest of the house. I assumed that an intake in the floor that was closer to the fireplace insert would transmit more heat but in my tests I found an intake near the ceiling transmitted more heat than one near the floor. So I wanted to know why, thanks for all the answers so far.
Studying Social Science: Psyc major, Comms minor. Took a year off work, Film School teacher (ask me questions about image capture devices and image capture pipelines eg bitrate and codecs) to travel around Australia with my partner and four kids. Toyota LandCrusier 4.5L V8 twin turbo, Jayco Sterling.
RE: Ducted Heat Transfer System from Fireplace.
This reminds me of the problem of mounting a thermostat on a wall that is not naturally the same temperature as the room. Hot wall, ice cold room no matter what the air temperature is.
RE: Ducted Heat Transfer System from Fireplace.
The IB bit seems to mean inbuilt or recessed into the fireplace already.
Doesn't sound like you're still travelling around Oz in a Landcruiser though....
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RE: Ducted Heat Transfer System from Fireplace.
RE: Ducted Heat Transfer System from Fireplace.
Studying Social Science: Psyc major, Comms minor. Took a year off work, Film School teacher (ask me questions about image capture devices and image capture pipelines eg bitrate and codecs) to travel around Australia with my partner and four kids. Toyota LandCrusier 4.5L V8 twin turbo, Jayco Sterling.
RE: Ducted Heat Transfer System from Fireplace.
RE: Ducted Heat Transfer System from Fireplace.
Hot air rises; the air on the floor is likely noticeably cooler than than near the ceiling. You are measuring surface temperature, not air temperature. The atmosphere is nearly transparent in the wavelengths that your "thermometer" uses. Your head is probably a better indicator of air temperature than your thermometer. Place your head near the floor and near the ceiling and you'll easily tell the ceiling air is warmer by far.
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RE: Ducted Heat Transfer System from Fireplace.
Thanks IRstuff I will try this.
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