Small insert to get the most heat

[Yawiney]

I'm looking at 4 possibilities to fit my small zero clearance fireplace:
Quadrafire 2700i
Kuma Aspen
Enviro Kodiak 1200
Regency hearth heater
The Enviro has the bigger firebox. Is that the main factor here?
Regency comes out more on the hearth.
Any experience with these and/or knowledge of the products would be helpful.
My house is 1900 sq ft, so going to a small insert from the isle royale i'm used to will be a big change.
Just trying to get the most heat possible.
Thanks!!

 

[bholler]

I'm looking at 4 possibilities to fit my small zero clearance fireplace:
Quadrafire 2700i
Kuma Aspen
Enviro Kodiak 1200
Regency hearth heater
The Enviro has the bigger firebox. Is that the main factor here?
Regency comes out more on the hearth.
Any experience with these and/or knowledge of the products would be helpful.
My house is 1900 sq ft, so going to a small insert from the isle royale i'm used to will be a big change.
Just trying to get the most heat possible.
Thanks!!

What make and model zero clearance fireplace is it?

 

[bholler]

Never mind i rememder yours is the one that is hard to read. From what you can read the only model that ended thevway yours did that i could find very clearly states inserts cant be used.