built in blower


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Old 10-03-07, 08:56 AM
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built in blower

I have a brick fireplace with steel lining. It has a kind of blower system built into it with two intakes at the bottom right and left side of the brick face (inside the room) and two exahaust grills just above the mantel. Once flips a switch and I think it takes in cool air at floor level, somehow circulates it around the fireplace and exhausts warmer air at the two higher grills. ANyone know what is really behind this, how it works, what its called?

House is 1975 and 2-story.

Thanks!
 
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Old 10-16-07, 04:01 AM
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fireplace hot air circulation

Maybe some clarification... this brick fireplace seems to have separate channels inside the brick on the sides and the back. The intake / exhaust mechanism circulates air around the outside of the firebox (e.g. throughout the brickwork somehow) and blows out warm air that has radiated into the brick and warmed it. So the whole thing is in the brickwork but around and outside of the wood burning firebox, not in it.

2 intake grills at the bottom face of the brickwork (one grill to the right and one to the left) gently pull air in. About 5 ft. above that also in the face of the brickwork are 2 exhaust grills which push out warm air. Its electric fan driven. The fans are inside of the intake grills. They are very similar to low speed bathroom fans.

Any ideas what this arrangement is called and where to get more info on proper usage?

Thanks again!
 
  #3  
Old 03-24-08, 05:39 AM
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The handle on the flue door says "Heatilator". I googled this and got to their site but they have lots of models etc. Is there something special about this type of fireplace? Can you still put a wood stove insert in?
 
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Old 03-24-08, 08:28 AM
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Hi, I'm sorry no one answered your earlier posts.

I had a heatilater unit in the fireplace when we moved here, but it didn't have any channels in the brick...the motor was mounted in the firebox and the ports were beneath the grates.

Keep checking back, I'm sure one of the pros will have an answer for you.
 
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Old 03-26-08, 07:28 PM
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Cool Mark C

This is probably a Heatilator Mark C, which was produced from 1928-1985. It is technically a "steef form fireplace". You can contact Heatilator Technical Services and they can provide you information on the unit. You really should not cut out any steel to install an insert stove. Since most stoves require a 6 inch stainless steel liner, you would have to torch it apart. The way these things are installed varies a lot but I've seen many that were packed in with newspaper and other combustibles. If you cut into those steel passageways, you risk a fire as heat gets into those convection chambers. Also, I've seen some crazy stuff with those blower motors.

I recommend you have a Level II inspection to guide you in how to proceed with this unit. You can look for a Certified Fireplace Inspector at www.f.i.r.e.service.com . You can also look for an NFI certified wood burning specialist at www.nficertified.org. You can find a certified chimney sweep at www.csia.org
HTH,
Hearthman
 
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Old 03-27-08, 02:21 AM
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Thanks! I'll get a proper inspection and start there.
 
 

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