This fireplace came with the house and I know almost nothing about it except that the chimney was clean. We burned a cord of wood in it last year without a problem. I was less than impressed with its efficiency and I want to get more out of it this year, so I did some investigating.
Last year, I didn't even know this line coming out of the back of the fireplace existed, but since the front of the fireplace is grated, I assumed I could use it the way a conventional fireplace insert works. After checking that the lever on the front of the fireplace (picture below) opens and closes a door behind the duct entrance to the back of the fireplace, I installed a fan on the duct line.
The problem is that when the fan is running (and I installed a serious fan at one point just to check that I was too low on CFM), I can't feel any airflow from the grates on the front of the fireplace unit.
- Can anyone help in explaining why there's no air coming out the grates?
- Is this not the intended use of that duct?
- What's the easiest way to make it work the way I want it to (if possible)?
- I tried Googling for the manufacturer's documentation but couldn't find anything. Does anyone have a line on some documentation for this unit?
**UPDATE:**I found out that the blowers made for this fireplace have been discontinued. However, I found a company that makes aftermarket blowers. They had a low-profile one that I'm going to give a shot (http://www.fireplaceblowersonline.com/lp_4500_low_profile_fireplace_blower_fan_kit-details.aspx).