What are the interior dimensions?

The interior chamber is approximately 6" x 6" x 6" Thank you!

can I use it to temper and harden steel ?

Probably. I am a glass artist and use this kiln for annealing art. This kiln can achieve 2200f, but you shouldn't push it above 2100f per manufacturers recommendation. The big thing is the size. I'm not sure how much steel you wish to temper, but the interior of this kiln is very small, one of the smaller available in fact, so keep that in mind when deciding. This is an amazing kiln however. I've owned two now. Probably the coolest feature is how insanely fast it heats up. I've never timed it, but I am pretty sure mine can hit 1050f in under two minutes with the door to the kiln closed ( I let it idle with the door open often, so I can garage projects). It is extremely portable. The Nintendo Gamecube of kilns, it even has a cool little handle! Plugs right into a standard wall socket, and needs much less clearance than other kilns (Mine just sits on the corner of my workbench). If this kiln will work for your needs, it is an easy buy in my opinion.

how big (ounce wise) of a crucible can fit into this furnance?

The Rapid Fire Pro has a 6" by 5" by 6" firing chamber. Whatever crucible you want to use that will fit in a space that size will work. This unit does not come with a crucible.

Where do I find a shelf for this kiln?

First off it comes with one, if you need another it needs to be 4-7/8" by 3-3/4".

Tabletop Rapidfire Pro L Standard Furnace

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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₨541159

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Compact power, pro results—ignite your craft anywhere!

RAPID HEAT POWERHOUSE - Reach blazing 2200°F in under 10 minutes—cut downtime, boost productivity.
COMPACT YET CAPACIOUS - Spacious 6"x5"x6" chamber fits your jewelry, metal clay, and glass projects with ease.
FEATHERWEIGHT MOBILITY - At just 12 lbs, take professional firing anywhere your creativity leads.
BUILT TO ENDURE IMPRESS - Raw steel body ages with character under heat, combining durability with artisan style.
PRECISION DIGITAL CONTROL - Accurate temperature management with intuitive digital panel for flawless results every time.

The RapidFire Pro-L Portable Digital Kiln is a lightweight, USA-made electric kiln designed for jewelry making, metal clay, enameling, and glass fusing. It rapidly heats up to 2200°F in 8-10 minutes using advanced RapidHeat technology, features a precise digital control panel, and offers a spacious 6"x5"x6" firing chamber. Its durable raw steel construction ensures long-lasting performance and unique heat-induced coloration, all packed into a compact 12 lb design perfect for professionals and hobbyists seeking portable, high-quality firing solutions.

Specifications

ASIN	B00L0OTDYE
Best Sellers Rank	#264,037 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #331 in Jewelry Casting Tools
Customer Reviews	3.8 3.8 out of 5 stars (45)
Date First Available	June 15, 2014
Is Discontinued By Manufacturer	No
Item Weight	12 pounds
Item model number	FUR-0056
Product Dimensions	8 x 7 x 13 inches

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₨541159

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In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TableTop RapidFire Pro-L Standard Furnace

Description

Specifications

Common Questions