Day Tank Refractories

AZS Day Tank Liners


For those that build and built day tanks the Corhart AZS liner was an ideal refractory. It was long lasting, had only two seams, had no sharp corners, and was only 3 pieces as shown in the photo and diagram below. The center section came in 3 sizes so one could build a furnace of varying capacities. Oh happy day, this liner is available once more and can be purchased through this web site. If you're interested in purchasing the liner download the pdf file and E-mail your request to me. Include your shipping address. The final estimate will include crating and shipping charges.

This is the Corhart AZS Liner but it is no longer made by Corhart. Corhart no longer exists. This liner is not made in China. It is manufactured in Europe. We can arrange shipping directly to your door.
The AZS style Glass Tank is designed primarily for the glass artist who desires 300 - 500 lb. melts. The AZS family of shapes consists of end pieces and an 18" wide x 12" to 22" middle channel section with 2 joints. If you want more capacity than this, we suggest using two pieces of channel between the end pieces.
It is important to heavily insulate the AZS Glass Tank as part of the furnace design. This insulation not only saves energy (and dollars) but it also helps to dampen the effect of normal temperature fluctuations, thereby lessening the potential for thermal shock (cracking) of the fused cast material.
During the melting of your glass batch or glass cullet, we suggest several small charges rather than one large charge. This practice will dampen the severity of the temperature swings in the melter, and minimize the thermal shock to the refractories.
Position 1 is the end cap (101-8). In order to construct this furnace you will need two of these. Position 2 is the center block and is available in three sizes. The photo above should give you an idea of how this liner is constructed. It should be noted that this type of liner makes the building of a continuous take fairly easy. The great advantage to this liner beside long life is there are only two seams. The estimate of the glass capacity is based on soda/lime glass with a cu. ft. weight of 160 lbs. I have built 4 furnaces using this block and each lasted 7 years of continuous use. The life expectancy of any furnace is dependent on a number of factors. The primary factors are: Type of glass used (batch or cullet), melting and working temperature, number of charges per week, how active your glass is (viscosity). Regardless, an AZS liner when used correctly will outlast any other type of liner.
The pricing quoted below can change without notice and does not include shipping. Contact me for a full quote.
Pricing AZS Corhart Liner

The prices listed for the AZS liner do not include shipping and handling.
Worldwide shipping available.

If you're thinking about picking up the block when they clear customs in order to save money, please keep the following in mind. These block are extremely heavy and they arrive on a pallet. Do you have a truck big enough to accommodate the pallet, does customs have a fork lift to put the pallet on your truck, and is your truck capable of handling the weight? Will customs release the shipment to you. My suggestion is to call ahead. This chart gives the dead weight of the block. Remember you'll need two (2) of the 101-8 block. If you answer no sweat to all of these questions then by all means knock yourself out. Personally I would spend the extra bucks and have it delivered to the front door of my studio but, hey, that's your call. In case you're searching for your calculator here is the weight of a furnace using 2, 101-8 and 1, 101-12, = 952 lbs
AZS liner information for ordering. Click to download the pdf file.
How to build a furnace with the Corhart style liner.
Click to download the pdf file.

AZS Block – Any Size


If the Corhart liner doesn't fit your needs I can also obtain AZS block of any dimension. Let me know what block sizes you need, quantity, and I will forward a quote to you. The standard delivery time from time of purchase is about 8 weeks.
Click on this
E-mail link to request a quote. If you wish to call to discuss your needs call me: 330.673.8632

Need help in designing a day tank?
If you need help in designing a day tank I might be able to help. Send an email with your basic plan or need and I will be happy to make suggestions.

The initial expense of an AZS liner is more than compensated for when you consider its life expectancy. Real world experience tells us that an AZS liner will last 5 to 7 years. The life expectance of any liner is also dependent on how many charges one makes per week. The life of a high alumina liner is at best 2 years or less if you melt batch. It should be noted that the AZS liner is not recommended for use in areas that have frequent power outages.

Please call if you have any questions.