Hello,
.....
So after looking at options, it seems some people 1) fit the biggest insert they can inside of the ZC or 2) tear out and start over.
My question is, what options do I have?.....
These units are not really inserts, they are zero clearance fireplaces.
To not confuse the OP even more: If he is in the planning/building phase of his new home he has essentially two options:
a) Install a zero clearance fireplace if the look of a fireplace is desired. Preferably an EPA-approved (efficiency > 70%) one if it is also supposed to heat and not just for ambiance.
b) Install a freestanding woodstove.
For an insert, he would need to build first a masonry fireplace and then put an insert in. That just does not make any sense cost-wise. If he would have that much money to spend I would look into a masonry heater instead of a stove or ZC fireplace. http://www.mha-net.org/
The house I grew up in and a home of my own both had large thermal mass masonry heaters tht did wonderful jobs of heating the whole house. Both had ash pits under , air feeds and glass fronts. Both were a joy to use and kept the house quite warm.I can speak to the matter of the Rumford fireplace, as I have one in my house. I built it. Yes the Rumford style fireplace is a great heater, for a fireplace.
In order for you to maximize heat output from your Rumford, you need to build it entirely of masonry, and build it entirely within the house.
In my house, the back wall of the fireplace is 7 feet inside the house, and it is the inside wall of the bathroom. It sure makes a pretty bathroom wall.
I live in the NC mountains and it does get cold up here, very windy in the winter. In any weather, the fireplace will easily heat my 16 x 22 foot living room, and most of the rest of the 1,200 square foot, 2 story house, while the fire is burning.
We had planned to have the sofa 8 feet from the fireplace, had to move it back to 11 feet, that thing really throws the heat!
Very important to have an exterior air intake. On a thirty degree night, if I burn my fireplace for 5 hours, the heat will begin to come out of the back wall and into the bathroom. Let us say, the fire goes out at midnight. By 2 am the coals are dead and I close the damper.
Of course, massive heat is being put out all night by the firebox, but the next morning, that rock bathroom wall, the back wall of the fireplace 105 degrees. That doesn't sound very hot, but you have 5 tons of masonry that is 105 or hotter, of course, the firebox is well above that the next morning.
On that 30 degree day, the fireplace will heat the entire house to 65 degrees until the afternoon, with no additional fire having been built.
So that, I can burn my Rumford for 5 hours every evening and heat the house with it around the clock, with a low of 30 degrees.
I have had my fireplace for 17 years and I also have a wood stove. As good as my fireplace is, it still burns 5 times as much wood as the wood stove.View attachment 129499
So it looks like it is narrowed down to zero clearance models Napoleon NZ-26 or Lennox Brentwood.
I'll look for other posts on these 2 models to see if one has any a distinct advantage over another.
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