HearthKit FAQ

What is HearthKit made of?

HearthKit is manufactured from a blend of cordierite, a specialized blend of earthen materials, bonded to create a ceramic material.

How is HearthKit manufactured?

HearthKit is pressed at over 175 tons of pressure and then heated at 2,300 degrees Fahrenheit, after which it is allowed to cool and cure.

Is HearthKit designed only for baking breads, pizza, pastries, etc.?

No, HearthKit enhances baking, cooking, and roasting of meats, poultry, vegetables, and casseroles, as well as slow-cooked stews.

Is HearthKit difficult to assemble?

No, HearthKit typically takes less than 60 seconds to install.

Where should HearthKit be positioned in the oven?

HearthKit is designed to create a cavity 7.5″ to 9.5″ high from ceiling to your oven

How long will HearthKit last?

HearthKit is a ceramic product designed to absorb heat at a level higher than any regular home oven can produce. It has no moving parts with the exception of the replaceable custom HearthKit Thermometer and dual-purpose chrome rack. The ceramic material is breakable if misused. HearthKit will last for many, many years and may be transformed to a same size oven in the event the homeowner replaces their current oven or moves.

Does HearthKit carry a manufactures warranty?

While there are still new HearthKits available on the Internet, the HearthKit is no longer manufactured so there is no warranty available.

Does HearthKit come in several oven sizes?

Yes, Please refer to our HearthKit size guide

How do I know which HearthKit will fit in my oven?

Home ovens generally come in four sizes. The most common are the range, which typically measures 30″ and a wall oven that measures 27″. Typically, professional ovens measure 36″ and the small apartment oven measures 24″ (HearthKit currently not available for 24″). If you are still unsure of your oven size, using a tape measure, measure left to right the outside width of your oven door. In most cases this will help you to determine the HearthKit size for your oven. More information can be found at our HearthKit size guide

Is their any danger dealing with HearthKit?

No, with the exception that HearthKit maintains heat over a very long period of time. The user should be cautioned that after bringing the temperature up to 400 or 500 degrees Fahrenheit. HearthKit will maintain a certain amount of heat well after the oven has been turned off.

How do I accommodate baking/cooking/roasting different items?

We suggest you cook the lowest temperature item first and then raise the heat of the hearth oven to meet the requirements of the second or third item to be cooked.

How do I clean HearthKit?

Most modern ovens have a self-cleaning feature and it is recommended that you leave HearthKit in place during the self-cleaning cycle. This will restore the color to “like new” and can be repeated as often as is necessary. Please read the cleaning segment of the Use and Care guide. It is important to understand that there are some self-cleaning ovens that require the removal of the steel shelving from the oven prior to the start of self-cleaning. If that is the case, it will be necessary to carefully remove the sides and then remove HearthKit base from the oven. Cleaning instructions for the removed HearthKit are detailed in the HearthKit Use and Care guide. Be sure to remove custom HearthKit Thermometer
and dual-purpose chrome rack prior to the start of any self-cleaning
process.

Are there any similar devices available?

No, HearthKit is unique. Multi patents in the United States, 10 countries in Europe, Mexico, Canada, Japan, and Australia, protect it.

Is it necessary to preheat the HearthKit before use?

Yes, HearthKit typically requires a few more minutes to preheat and charge than your oven normally would. Setting the oven to a higher temperature during the preheating phase and then backing it down to the desired temperature will reduce this time. Also, if your oven has a convection
feature, using it will also shorten preheating time.

Is the HearthKit still available?

While manufacturer Hearth Kitchen is no longer in business, so HearthKits are no longer available. Sometimes, you can used ones from third party sellers on Amazon. Visit our Order HearthKit page to see what’s available.

HearthKit features:

• Patented three-piece oven insert
• Integrated high-heat thermometer
• Multi-purpose cooling, baking, broiling rack
• Instructional video
• Use and Care Guide with delicious recipes including great bread
  making recipes