JUCA Fireplaces can feed warm air into house warm air ducts to supply heat to the entire house. The popular Model F-9A (shown here) is rated at 140,000 Btu/hr output (about like a normal gas house furnace.) An F-9A can heat the WHOLE HOUSE and looks EXACTLY like a normal fireplace! A strong 465-cfm blower is included as standard, with several options up to 2,550-cfm (3/4 HP) for VERY large houses. Beautiful Brass Doors are included! And the F-9A is only about $1,900!
The JUCA F-9A Built-In Fireplace can have over 4,000 different appearances! (Including Arch-Tops!)
All can use wood OR gas OR both!
JUCA makes a wide variety of models, including :
JUCA products all include extremely sophisticated high-efficiency heat- exchangers. A computer was extensively used in CAD to maximize performance. That's why JUCAs stand alone in entirely heating whole houses! Several are GUARANTEED to be able to entirely heat ANY home in the U.S. This is true whether burning wood OR gas! With wood, 8-12 hour burn times are normal, while burning cleanly! That's why JUCA was featured on the TODAY Show, in NEWSWEEK, in the New York Times, in Mother Earth News and elsewhere.
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By the way: It is not NECESSARY to get huge heat output from a JUCA. On mild days, you can use it to just "take the chill off."
Many owners have found that their house values increased more than the cost of the JUCA!
JUCA products are so advanced that sometimes it may not be obvious to a prospective customer just all the choices and options available for a particular house. JUCA has created hundreds of web-page presentations to help supply answers to questions and solutions to unique installation situations. Many background subject discussions on fireplaces, woodstoves, wood burning, etc., are included in its 2,900 screens. Of course, substantial information is also included on the many JUCA models, their various options, and a multitude of suggestions on how best to plan, install and enjoy a JUCA. All prices of all products are included, even all the hundreds of options available to you.
Hundreds of other presentations address specific subjects. There's a chart that describes the burning characteristics of about 35 species of wood. A sub-program helps select among over 4,000 different brass-door appearances available for the Model F-9A! A LOT of useful stuff!
For technical jocks, the web-site includes some really hairy stuff, such as the quintuple Integral Calculus equations used to design the JUCA heat exchangers for maximum performance. Theory, physics, chemistry, thermodynamics and aerodynamics discussions are included in the TECHNICAL section. (NORMAL people don't have to be subjected to this sort of abuse!)
For NON-Technical people, there are visual mini-movies, charts, graphs and such to present the JUCA concepts for most people.
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The rotating JUCA Model F-9A at left shows some of its features. On the front is the large opening of the huge firebox (brass doors removed for clarity). The (included) door assembly has a draft control for air for the fire. On one side of the body is the (Standard) blower; on the opposite side is the 8" by 16" warm air outlet (to feed into ducts and/or to warm air registers in the room). An automatic blower control has a temperature probe in the warm air chamber there. Notice the offset of the door assembly to the main body (we call it the "snout") that allows space for full thickness facebrick everywhere on the facing. Also note the heat baffle and air chambers below the firebox. The entire firebox is surrounded by heat exchange chambers, to capture radiant heat from the fire inside. Not visible are the tubular heat exchangers bridging across inside above the fire, to capture convective heat from the smoke. |
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JUCA products are all designed to work on a NON-airtight principle
of operation. This is a VERY important (and unique) characteristic
of all JUCA products. ALL other (competing) woodstoves and efficient
fireplaces operate on an air-suffocation (or air-tight) principle of
operation. That approach NECESSARILY causes major changes in how the
fire burns and how the fireplace/woodstove operates, from how it
would have worked as a ":normal" fireplace. These effects
require those products to have designs which have small fireboxes,
small doors and small glass areas, limited heat exchange
areas, and a sealed fire chamber. They also require SERIOUS design
attention to the fact that suffocation designs tend to burn poorly,
and therefore tend to create creosote and pollution. JUCA uses a totally different approach. Our NON-air-tight design allows the woodstove/fireplace to operate very similarly to how a fireplace traditionally operated, VERY cleanly. (You could even roast marshmallows or make popcorn in it, which you cannot do with ANY competing product! Competing products cannot be operated with the door open because the design theory doesn't allow it.) Our computer-designed heat exchange structure up above captures most of the heat that would have been lost up the chimney, we have a huge firebox size, a very large glass viewing area, a large door for feeding wood, and a blower that is MUCH stronger than any competitor. All these characteristics combine to capture the most heat possible from the fire's output, while not messing up the fire's original operation. That original operation always included very clean burning, which the JUCA's design maintains. JUCAs do NOT share the air-tight products' problems of huge creosote and pollution creation. JUCA's non-air-tight design allows capturing all that heat while burning so cleanly that no "catalytic combustor" or "secondary burn" is even necessary or desirable! This difference between the JUCA's non-airtight design and ALL competing products (which are ALL airtight) has some other implications. Because those airtight products developed a bad reputation in the 1980s for creating a lot of pollution and creosote (because of the suffocation of the airtight operation), the EPA and other government agencies passed stringent laws applying to them. Commonly, the chimney must be re-lined ($$$). A JUCA woodburner does not require all that, and the EPA and other agencies agree. The JUCA unit actually operates as a traditional old fireplace did with the only major difference being that the JUCA captures most of the heat that would have gone up the chimney. Building fires is the same as in a conventional fireplace, and the fire behaves as you expect a fireplace fire to behave. That is definitely NOT true of airtight woodstoves and fireplaces, which operate VERY differently!
Why are JUCAs different from all competing Fireplaces?The answer to that is pretty complex, and it's why we have hundreds of informational pages in our web-site. A capsule version:Back in the 1970s, only Potbelly stoves, Franklin stoves and barrel stoves existed. They all produced huge amounts of heat, but TOO MUCH, and for only an hour or two. Great temperature variations in the room were common. So the problems were: too much heat and too short a burning period.
Two solutions arose. The Airtight design and the JUCA design.
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JUCA Built-In Fireplace Furnaces for more info on these models.
JUCA Super-Fireplace Info Sheet Index for an Index of Many More Subjects.
JUCA Built-In Fireplace Models
Other companies' 'Zero-clearance' fireplaces all have unusual appearance,
which give away the fact that they are not actually massive masonry
fireplaces. Not so with the JUCA F-9A series. The JUCA facing
appearance is exactly like a conventional fireplace with a set of brass
doors on it. There are no ugly black metal panels with air holes
around the door opening. (All the "performance parts" are
hidden inside the wall). 'Brass' may be too specific a term
here since JUCA offers Antique Brass, Polished Brass, Satin Brass, Black,
Copper, Chrome, Pewter, Nickel, Swedish Metal, Enamel, and all manner of
combinations of these. In recent years, Arch-Top appearances have become
fairly common on the JUCA F-9A. Over-size dimensions (or dimensions to
suit a specific space) and many custom options are commonly included
as part of an F-9A. JUCA offers over
4,000 different "standard"
appearances! If this incredible choice isn't enough, even
gold-plated and platinum-plated optional facings
have occasionally been requested and supplied!
All JUCAs use conventional large or small house ducting and normal warm air grille outlets to get the heat out into the room (and house). The air intakes and outlets DO NOT have to detract from the appearance of the fireplace. They can be on other walls or even in other rooms!
No matter WHAT decor and "mood" you want to create, a JUCA F-9A can help achieve it.
Performance to heat the ENTIRE HOME combined with beautiful conventional fireplace appearance and operation. Wow!
About $1,900 up (plus shipping)
Details
For a better view of the JUCA F-9A
Built-In Traditional Fireplaces
Most people tend to select a conventional rectangular fireplace
appearance on their JUCA Fireplace. The standard size of the F-9A
is the so-called 36(w) by 28(h), the most popular size fireplace in
the U.S., but JUCA has made units as wide as 78 inches! About
1300 different "standard" appearances are available in
rectangular shape, to fit in with ANY room decor. This
includes a variety of finishes, frame widths, and door appearances
and opening modes.
All this at VERY REASONABLE prices and relatively quickly.
About $1,900 (plus shipping)
Details
Arch-Top Built-In Fireplaces
Some artistic design applications involve room decors that
need an arch-top fireplace to blend in properly. Both Flat-Arch
and Full-Arch varieties are available on the JUCA F-9A
(about 700 different Arch-Top appearances available.)
The famous JUCA performance is still there, with the ability to
heat the whole house, but perfectly hidden from view.
All this is at VERY REASONABLE prices and relatively quickly.
About $2,100 up (plus shipping)
Details
Double-Sided Built-In Fireplaces
Some applications need a through-the-wall fireplace for aesthetics reasons.
The JUCA F-9AX model handles these situations. Even for unusual situations
when one side needs to be an Arch-Top fireplace and the other side needs to
be conventional rectangular, the F-9AX is the unit to get. Competing
double-sided fireplaces require identical appearance (usually with black
metal areas) on both sides. The JUCA F-9AX could have Polished brass
Traditional Bi-Fold doors on one side in a Great Room (for a regal
feeling); and Black Clear-View Twin doors on the Family Room side
(for a cozy feeling). And, as always with a JUCA, the unit has
ability to heat the whole house!
All this at VERY REASONABLE prices and relatively quickly.
About $2,300 (plus shipping)
Details
Custom-Sized Built-In Fireplaces
JUCAs 'standard' custom-built units include many thousands of possible
combinations. They're all also available with customer-specified
dimensions. Taller, wider, deeper, shallower, shorter, ... No Problem!
All this at VERY REASONABLE prices and relatively quickly.
Unique Custom Built-In Fireplaces
Need a circular-shaped or wedge-shaped door appearance? We build the
firebox/heat-exchanger to customer- or builder-specified plans and include
appropriate shaped doors (again in many possible finishes.)
How about a Scalloped arch appearance? Or a Gothic-Arch Fireplace?
Or an Art-Deco motif? Or a Bay Window feel? JUCA does it,
still maintaining the whole-house heating capability!
All this at VERY REASONABLE prices and relatively quickly.
Other Unique JUCAs for Specific Applications
JUCA loves to create unique custom-designed fireplaces, woodstoves,
and wood burning furnaces for specific situations. Many very
unusual appearing JUCAs now heat homes. In addition, JUCAs heat
greenhouses, warehouses, factories, pig brooders, barns, garages,
pole barns, etc., etc.
Considering what JUCA calls 'standard,' these are usually 'cake!'
All this at VERY REASONABLE prices and relatively quickly.
JUCA Gas-Burning Units
All of the normal JUCA units are built very sturdy, in order to be
able to burn wood safely. However, all can be combined with a normal
gas-log set to make it a gas-burning unit, too! In this way, double
benefit is gained. If the user feels industrious, the gas logs are
removed and wood is burned; at other times, the gas logs are burned.
In both cases, the romance of the fire is present, as well as the
JUCA performance to heat the whole house! The changeover usually
only takes a couple of minutes.
JUCA's gas-burning units can have manual control, wall control, remote control, or even wall-thermostat control. This last choice can allow the JUCA unit to act as the automatic central heating source for the house!
The gas-burning capability of a JUCA can be delayed until later. The unit can be used as wood-only for now, and then later gas can be used. As long as the unit is built with the gas-line stub pipe installed, the gas log-set could be installed years later, using wood now! Great flexibility!
The opposite approach can also be used. As long as gas is reasonably priced (AND AVAILABLE), why not burn gas in the fireplace, heating the entire home in the process? If something silly happens again in the Mid-East (and it will), where conventional fuel sources are interrupted, then take the two minutes to remove the log set and start burning wood. The best of both worlds! See any of the JUCA models listed above. All can be wood-, gas-, or both.
Roughly $1,900 (depending on model)
E-mail: JUCA at JUCA e-mail
Even better, the Version 1 System includes a sub-system that is also a way of entirely Air Conditioning virtually any existing house in the United States nearly for FREE! In a spirit of hoping to assist California homeowners from enormous summer electric bills (and power outages), this sub-system is being made available, for FREE, at Home Air Conditioning We hope that, if enough California homeowners would install the simple system, maybe the power companies and the energy grid could keep up with the Summer high demand for electricity. Since we're giving this information away, you could probably help some of those California homeowners to tremendously reduce their summer electric bills and maybe help avert blackouts out there, so let any of your California friends know about that possibility available to them!
We are also involved with a variety of other projects that are meant to give benefit to society in one way or another. Some are social or intellectual presentations, meant to help find solutions to things in our lives. Others are products or services that also are meant to somehow improve our lives. If you have curiosity about this, you might want to visit a directory page we set up for these Public Services Home Page. If you are civic-minded or otherwise motivated, a number of those projects could benefit from the participation of additional people.