PRISTINE GASSIFICATION SERIES Outdoor Wood Furnaces
The Pristine Series is an EPA-certified outdoor wood furnace featuring advanced negative pressure gasification technology for cleaner, more efficient wood burning. Designed to extract more heat from every load of seasoned firewood, the Pristine Series delivers up to 99% combustion efficiency while helping reduce wood consumption, emissions, and ash. Built with durable 409 Titanium Enhanced Stainless Steel, it's designed to provide reliable heat for homes, shops, barns, garages, and multiple buildings.
Roller Latch Door System
The Roller Latch Door System provides smooth, effortless operation with positive-pressure latching, a flush-mounted design, and a comfortable handle. Adjustable clevis bearing hinges allow for easy door adjustment, while silicone-infused fiberglass door rope helps prevent moisture and provides lasting durability. Five inches of high-temperature ceramic insulation and a three-inch air space help retain heat while keeping the door cool to the touch.
Heat Exchanger Cleaners
Made of 409 Stainless Steel twisted-tape turbulators help maximize heat transfer by slowing the flow of hot air through the heat exchanger tubes, allowing more heat to transfer to the surrounding water. The front-access design makes it easy to remove fly ash buildup with a simple push-and-pull motion, helping maintain efficient operation.
Combustion Air Panel
Constructed from durable 409 Stainless Steel, the Combustion Air Panels improve air distribution while helping protect the firebox and furnace structure from wear. Designed to expand and contract independently, the replaceable panels help protect the Gasification Manifold and Water Jacket while extending the life of the furnace.
Gasification Manifold
The uniquely designed, high-temperature poured refractory Gasification Manifold injects preheated air directly into the combustion zone, helping ignite combustible gases for a cleaner, more efficient burn. This process helps create the high-temperature flame needed for peak secondary combustion, with temperatures reaching up to 2,300°F.
How Negative Pressure Gasification Works
To achieve 99% combustion efficiency, the Pristine Gasification Series outdoor wood furnaces use a Negative Pressure Gasification System that “pulls” air from the bottom rather than pushing it from the top. With the furnace completely sealed, air is drawn downward, forcing gases from the firebox through the ash bed and into the Secondary Combustion Chamber. This design creates virtually smokeless operation, lowers chimney exhaust temperatures, and allows for more forgiving wood placement.
Why Choose A Pristine Stove?
Burn Less Wood
Advanced gasification technology is designed to extract more usable heat from every load of seasoned firewood, helping reduce wood consumption and heating costs.
Cleaner, More Efficient Combustion
Negative pressure gasification and secondary combustion technology help burn combustible gases more completely for cleaner operation, higher efficiency, and lower emissions.
Built for Long-Term Performance
Durable 409 Titanium Enhanced Stainless Steel construction, insulated design, and a 20-Year Limited Warranty provide confidence in your long-term investment.
Keep the Mess Outside
An outdoor furnace keeps firewood, ash, and combustion outside while providing comfortable heat throughout your home or other buildings.
A Renewable Heating Solution
Wood is a renewable energy source that can provide an alternative to conventional heating fuels while helping reduce reliance on fossil fuels.
Convenient, Reliable Heating
Automatic refiring, digital controls, extended burn times, and easy-access maintenance features simplify operation and help deliver consistent heat.
Built for Performance from the Inside Out
Residential Homes
Heat your home with reliable Pristine outdoor wood furnaces to provide consistent warmth throughout your home.Pools/Hot Tubs
Use the Pristine Series to provide heat for pools and hot tubs. Outdoor wood heating can help provide an efficient source of heat for recreational water applications.Domestic Hot Water
The Pristine Series can be integrated with a domestic hot water system to provide hot water for everyday household use. Talk with your dealer about the appropriate system configuration for your home's needs.Radiant In-Floor Heating
Deliver comfortable, even heat through radiant in-floor systems. The Pristine Series can provide heated water for hydronic radiant flooring in homes, shops, garages, and other buildings.Commercial & Greenhouse
Provide dependable heat for greenhouses and growing operations. The Pristine Series maintains consistent temperatures in commercial and agricultural growing environments.Garages and Workshops
Heat garages, workshops, and other outbuildings with the an outdoor wood furnace system. The Pristine Series can be used with hydronic or forced-air heating systems, depending on the application.Barns and Agricultural
Heat barns, agricultural buildings, and other farm structures with a centralized outdoor heating system. The Pristine Series can support multiple-building applications when properly sized and installed for the heating demands of the property.Kiln Dry Wood
The Pristine Series can provide reliable heat for wood kiln drying applications, helping maintain the controlled temperatures needed to efficiently dry lumber.
Pristine Series |
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|---|---|---|---|
| Model | 7200E | 7300E | 7400E |
| Estimated Weight | 1,950 LBS | 2,650 LBS | 2,950 LBS |
| Width | 48″ | 50″ | 53″ |
| Length | 74″ | 79″ | 85″ |
| Height | 78″ | 87″ | 93″ |
| Firebox Length | 28″ | 32″ | 36″ |
| Chimney Size | 6″ | 6″ | 8″ |
| Door Size | 18″ x 18″ | 20″ x 24″ | 22″ x 26″ |
| Supply Size | 1 – 1 1/4″ | 2 – 1 1/4″ | 2 – 1 1/4″ |
| Return Size | 1 – 1 1/4″ | 2 – 1 1/4″ | 2 – 1 1/4″ |
| Water Capacity | 180 Gallons | 235 Gallons | 290 Gallons |
| Combustion Fan | 3,000 RPM | 3,450 RPM | 3,450 RPM |
| Approximate Sq Ft | 2,000-3,000 | 4,000 - 5,000 | 8,000 - 10,000 |
| Approximate BTU'S | 125,000 | 221,000 | 325,000 |
| Insulation Roof/Walls | R30 | R30 | R30 |
| 409 Stainless Steel | Yes | Yes | Yes |
| EPA Certified | Yes | Yes | Yes |
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How does gasification technology work in the Pristine Series?
Rather than allowing wood to burn directly, the Pristine Series heats the wood to release combustible gases. These gases are then mixed with preheated air and burned at high temperatures, extracting more usable heat while producing fewer emissions.
What are the benefits of a gasification outdoor furnace?
Gasification technology offers cleaner burns, higher efficiency, reduced wood consumption, lower emissions, and less ash compared to conventional outdoor wood furnaces.
How is the Pristine Series different from the Multi Pass Series?
The Pristine Series uses advanced gasification technology and is EPA certified, while the Multi Pass Series is a conventional outdoor furnace designed for dependable performance and heating flexibility.
Is the Pristine Series an EPA certified outdoor boiler?
Yes. The Pristine Series meets EPA emissions standards for outdoor hydronic heaters.
Will an outdoor wood boiler save on heat cost?
Crown Royal Stove owners can save approximately 50% – 100% of their annual heating costs. They may also reduce or even eliminate hot water bills and the dependence on foreign fuels.
How efficient is the Pristine Series?
The Pristine Series delivers up to 99% combustion efficiency, helping homeowners get more heat from every piece of firewood.
Does the Pristine Series really burn up to 60% less wood?
Yes. Thanks to its highly efficient gasification process, the Pristine Series can reduce wood consumption by up to 60% compared to traditional outdoor wood furnaces, depending on operating conditions and fuel quality.
What does negative pressure gasification mean?
Negative pressure gasification uses a controlled draft to pull combustion gases through the secondary burn chamber. This creates a cleaner, more complete burn while helping reduce smoke and emissions.
What type of wood should I burn in the Pristine Series?
For the best performance, burn clean, dry, seasoned hardwood with a moisture content of 20% or less.
Do I need to burn seasoned wood in the Pristine Series?
Yes. Properly seasoned firewood is essential for achieving high efficiency, clean burn, and low emissions the Pristine Series is designed to deliver.
How often do I need to clean the Pristine Series?
The Pristine Series features a self-cleaning heat exchanger that reduces maintenance, but regular ash removal and routine inspections are still recommended.
How does the self-cleaning heat exchanger work?
The self-cleaning heat exchanger helps remove ash and buildup from heat transfer surfaces during operation, allowing the furnace to maintain efficient heat transfer with less manual cleaning.
Can the Pristine Series heat my home and domestic hot water?
Yes. The Pristine Series can heat your home, domestic hot water, shops, garages, barns, greenhouses, and multiple buildings when properly installed.
What is the operating temperature of the Pristine Series?
The Pristine Series is factory set to operate at 180°F, providing consistent and reliable heating performance.
What material is the Pristine Series made from?
The Pristine Series is constructed from domestically sourced 409 Titanium Enhanced Stainless Steel for superior durability and corrosion resistance.
What controls come with the Pristine Series?
The Pristine Series features an easy-to-use digital control system that helps monitor and regulate furnace operation for consistent performance.
What warranty comes with the Pristine Series?
The Pristine Series is backed by a 20-Year Limited Warranty, giving homeowners confidence in the durability and quality of their investment.
Is the Pristine Series a good choice for homeowners looking to reduce wood consumption?
Yes. If your goal is to maximize efficiency, reduce wood usage, and enjoy cleaner burns with lower emissions, the Pristine Series is an excellent choice. Its advanced gasification technology is specifically designed to get more heat from every load of wood while minimizing waste.
How often do I have to clean the ashes out of my Pristine Series Crown Royal Stove?
This depends on the type of fuel and how much fuel is burned. Typically, bi-weekly clean outs are sufficient on a Pristine Series Gasification Boiler.
Can I burn coal in my pristine unit?
No, you cannot burn coal in a Pristine model. It is designed to burn only dry, seasoned, and split wood with a moisture content less than 20% to reach optimal efficiency and less creosote buildup.
Can I burn soft wood in my pristine unit?
Yes, as long as the moisture content of the wood is below 20%.
How often do I need to load wood into my Pristine unit?
Depending on the outdoor temperature and size of the unit, our outdoor furnaces only need to be loaded once or twice a day.
How long of burn times can I get with my Pristine unit?
Both the Multi Pass and Pristine series are designed for 12 hour burn times when sized appropriately. Speak to your local dealer for accurate sizing of a unit. A site visit may be necessary to size a unit appropriately.