Olympic Kilns DD9 Large Capacity Gas Kiln
Save $2,138.50
Original Price
$10,900.00
Current Price
$8,761.50
✎ Made to Order
Built for You — Lead Times Up to 12 Weeks
This kiln is made to order and may take up to 12 weeks to ship. Lead times vary — we recommend confirming availability before purchase. Contact us to confirm your lead time →
⚡ State Requirement
Solid State Relay Required in Select States
Large Capacity Kilns shipping to CA, IL, CT, MN, ME, MA, NH, NY, RI, and VT must be equipped with a solid state relay. If not selected at checkout, pricing will be applied at the time of order. For all other locations, a solid state relay is a recommended but optional upgrade.
No Sales Tax Outside GA
Military Discount Available for Veterans
Made in the USA
Talk to a Specialist: (470) 264-3563
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Large capacity kilns require a custom freight quote based on your location and delivery requirements. Fill out the form below and we'll get back to you promptly.
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Warranty: One-year limited kiln warranty from Olympic Kilns. Must be registered within 30 days of delivery. Valid only through authorized dealers.
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Olympic Kilns · Gas Kiln · Downdraft Front-Loading
Olympic DD9 Large Capacity Gas Kiln
The DD9 is a downdraft gas kiln engineered for production studios and serious ceramic artists who need consistent cone 10 results in a large-capacity chamber. With 15 cubic feet of interior space and a front-loading design, this kiln accommodates substantial production runs while maintaining even heat distribution through its downdraft firing pattern. Available in natural gas or propane configurations, the DD9 delivers professional-grade reduction firing capability for mid-range to high-fire ceramics.
Maximum TemperatureCone 10 / 2350°F
Interior Capacity15 cubic feet
Chamber Dimensions30″ W × 25″ D × 35″ H
Fuel TypeNatural Gas or Propane
What’s included
Downdraft Burner System
Complete gas burner assembly engineered for even heat distribution and efficient cone 10 firing with downdraft circulation pattern
Front-Loading Chamber
Full front door access to 30″ × 25″ × 35″ interior chamber with heavy-duty hinges and secure latching mechanism
Refractory Brick Construction
High-temperature insulating firebrick rated for cone 10+ firing with excellent heat retention and thermal efficiency
Adjustable Damper System
Precision damper controls for atmosphere management during oxidation and reduction firing cycles
Steel Frame Construction
Reinforced structural steel frame with powder-coated finish designed for stability under high-temperature operation
Pyrometric Cones Holder
Built-in cone viewing port with heat-resistant glass for visual temperature monitoring throughout the firing cycle
Technical specifications
ModelDD9
Kiln TypeDowndraft Gas, Front-Loading
Interior Dimensions30″ W × 25″ D × 35″ H
Interior Capacity15 cubic feet
Maximum TemperatureCone 10 / 2350°F
Fuel TypeNatural Gas or Propane (specify at order)
Firing PatternDowndraft circulation
Brick TypeHigh-temperature insulating firebrick
Door ConfigurationFront-loading with hinged door
Atmosphere ControlOxidation and reduction capable
Ventilation RequiredYes – exhaust flue to exterior
Approximate Shipping WeightContact for details
Optional accessories
Kiln Furniture Kit
High-alumina shelves and posts sized for the DD9 chamber to maximize stacking efficiency and support large production loads
Additional Shelves
Extra 30″ × 25″ cordierite or high-alumina shelves for increased loading flexibility in production firing schedules
Pyrometer with Thermocouple
Digital temperature readout system with high-temperature thermocouple for precise temperature monitoring during firing
Gas Pressure Regulator
Precision gas pressure regulator matched to kiln BTU requirements for consistent burner performance
Kiln Wash
Protective coating for shelves to prevent glaze adhesion and extend shelf life during high-fire ceramic production
Replacement Burner Parts
Spare burner tips, orifices, and flame retention components for maintenance and emergency repairs
Common questions
Can I convert this kiln between natural gas and propane?
The DD9 is configured at the factory for either natural gas or propane – you must specify which fuel type you need when ordering. Converting between fuel types after purchase requires replacing burner orifices and adjusting gas pressure settings, which should only be performed by a qualified gas kiln technician. If you anticipate needing to switch fuel types, consult with Peach State Pottery before ordering.
What are the installation requirements for the DD9?
The DD9 requires a dedicated gas line sized appropriately for the kiln's BTU rating, proper gas pressure regulation, and a ventilation system that exhausts combustion gases safely to the exterior. The installation must comply with local building codes and gas appliance regulations. We strongly recommend hiring a licensed gas fitter and kiln installation specialist to ensure safe operation. The kiln also needs a stable, level, non-combustible floor surface with adequate clearance from walls and combustible materials.
Do I need to purchase kiln furniture separately?
Yes, kiln furniture is not included with the DD9 and must be purchased separately. For a 15 cubic foot chamber, you'll need multiple 30″ × 25″ shelves and an assortment of posts in various heights to create efficient stacking configurations. We recommend starting with at least 6-8 shelves and a full post set. Contact Peach State Pottery for a furniture kit recommendation based on your specific production needs.
What is the difference between downdraft and updraft gas kilns?
In a downdraft kiln like the DD9, heat enters at the top or mid-level, circulates downward through the ware, and exits through a flue at the bottom. This creates more even heat distribution from top to bottom compared to updraft kilns, where heat enters at the bottom and rises directly upward. Downdraft kilns typically produce more consistent results across all shelf levels, making them preferred for production work where uniformity is critical.
How is the Olympic kiln warranty activated?
Olympic Kilns provides a one-year limited warranty that must be registered within 30 days of delivery. The warranty is only valid when purchased through an authorized dealer like Peach State Pottery. Register your kiln directly with Olympic Kilns after delivery using the serial number and purchase documentation. The warranty covers manufacturing defects but does not cover damage from improper installation, misuse, or normal wear components.
Not sure if the DD9 is the right kiln for your studio?
Our team can help you evaluate gas line requirements, ventilation needs, and whether this capacity matches your production volume.
Talk to an expert →