L-8 Sophisticated Heat Exchanger System

In order to achieve the highest OVERALL efficiency, a wood-burner must attain a high COMBUSTION efficiency (which means complete burning) and then must accomplish high HEAT TRANSFER efficiency (to get that heat out into the living areas of the house). JUCA's advanced design does both! The accomplishment of high combustion efficiency is covered elsewhere. The capture of that heat is due to the sophisticated, Computer-designed heat exchangers above and around the fire.

The fire gives off heat primarily by radiation and convection. You may want to follow the sequence of links describing heat capture and exchange in a JUCA.

The overall design of a JUCA considers ALL of the energy present in the firebox. Both sidewalls and the rear wall are hollow heat exchangers which capture RADIATION going in those directions. Above the fire are several TUBULAR heat exchangers which both capture RADIATION directed upward and also the CONVECTIVE heat being carried upward in the smoke. The two types of heat exchangers were computer-designed separately to maximize the effectiveness of that contribution to the total output of the JUCA Fireplace Insert.

Part of why JUCA's HEAT EXCHANGE efficiency is so high is that we use a substantial sized blower to move the air through the heat exchange passages. Where other Fireplace Inserts often use 60 cfm or 100 cfm blowers (and they won't tell you their size), the JUCA L-8 Fireplace Insert uses a hefty 465 cfm blower. There are two major reasons why this is beneficial.

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The net result of our extremely high COMBUSTION efficiency and our high HEAT TRANSFER efficiency is that the JUCA Fireplace Insert is the most efficient Fireplace Insert on the market.

The JUCA Home Page is at: http://mb-soft.com/juca/index.html

E-mail to: JUCA1@mb-soft.com