Quote:
Originally Posted by Mikesolar
The only real way to make it more efficient is to reroute the flue through a secondary HX. Is it is natural draft fireplace? If so, the flue is about as hot as it can get and the beast is probably only 60% efficient so any heat you can take from the flue will drop its temp. You then have to make sure the venting doesn't condense too much.
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I don't think this is a natural draft, I can see the flue where it leaves the top of the fireplace, but I'm not sure where it draws air in. It's a monessen bdv400nv if that's helpful. The identification tag under the fireplace says "blot fan or blower may be used" so I didn't think there would be an issue of cooling too much if using an appropriate blower
Its sounding like adding a blower doesn't really help get more total heat into the house, or if it does the difference would be very small