NEMA ENCLOSURES - Our standard box is NEMA 3, which makes it usable in outdoor and indoor applications but it is not air tight. We make units housed in NEMA 4 or NEMA 4 X enclosures for our heaters in both the CE, CES, CF, or CERO series.

Click Here to download more information about our NEMA 4 product


The NEMA 4 enclosure is made by an outside vendor of steel and coated in a white satin enamel paint that matches the color of our standard units. The NEMA 4X enclosures are purchased from a certified vendor and are made from 304 stainless steel. All enclosures include a hinged door and air tight connectors to allow main power and water line entry.

They are all large enough to allow entry to the top of the heater structure to be able to repair any part of the heater. For that reason they are normally twice the size of our normal NEMA 3 box.

Please see the sizes of NEMA 4 enclosures that correspond to our heaters below. These units are an optional adders when you check out of our shopping cart, or when you call in your order.
Heater Models NEMA 4 Box Size (W x H ) NEMA Rating Part Number Cost
CE 36, CES 36, CERO 36, CF 36 or smaller units.
(Three or Six element heaters.)
20 x 24 NEMA 4 NEMA4C6 $1,650
CE 36, CES 36, CERO 36, CF 36 or smaller units.
( Three or Six element heaters.)
20 x 24 NEMA 4X NEMA4XC6 $2,600
CF 48 thru CF 108. CE/CES/CERO 48 thru 72 KW.
(12 or 18 element CF series units and 12 element CE,CES, or CERO units.)
24 x 48 NEMA 4 NEMA4C12 $2,150
CF 48 thru CF 108. CE or CES 48 thru 72 KW. (12 or 18 element CF series units and 12 element CE or CES units) 24 x 48 NEMA 4X NEMA4XC12 $3,900
CE or CES 24 element units (CE 108 thru CE 144 KW) (CF 24 element units come std in NEMA 4 enclosures so there is no adder for that item) 36 x 36 NEMA 4 NEMA4C24 $1,200
CE or CES 24 element units with external Kill Switch(CE or CES 108 thru 144 KW)

Does not include the cost of the kill switch
36 x 48 NEMA 4 NEMA4XC24 $2,900
All CE or CES 24 element units with a Kill Switch. (CE or CES 108 thru 144 KW)

Does not include the cost of the kill switch
36 x 48 NEMA 4X NEMA4C24 $4,500
*An additional $200 shipping fee is added to the above items.

 

 

The 36 x 48 NEMA 4 box pictured below encloses a CF 108 KW unit in this case, but can be used on any of our 18 or 24 element units. The units and the box weigh a total of almost 400 pounds so it is not easily portable.

The picture below also shows a large mixing valve used on this application.

 

The 24 x 48 enclosures shown below house two CF 108 KW units.  The two units mounted back to back to create a 216 KW heating system and include the external kill switch.

The CES 144 KW unit shown below is housed in a 36 x 36 enclosure.  Please note it does not have a kill switch so it will fit in the 36 x 36 enclosure.   If it had the kill switch it would be in the 36 x 48 enclosure

 

The 36 x 48 enclosure shown below has the hinges for the door on the right. It is also shown with the optional casters.

It is shown on the right here with the optional 3” offset casters ($200 upcharge) that allow movement to the usage position.

All enclosures include a hinged door and air tight connectors to allow main power and water line entry.

When ready, the casters can be removed and the unit sits on the floor.
 
The casters are offset to make the “wheelbase” wider than the heater so the unit is not top heavy.

Mounting brackets are also available if the customer would like to bolt the unit to the wall instead of setting it on the floor.

 

 

 

 

 

The casters are pictured below on their mounting plate that attaches to the forklift rails on the bottom of the NEMA 4 box.

 

 

Enclosures to meet Class 1 Div. 2 requirements. To accomplish this we use a purging system from Best Purging, model 1002. The customer supplies compressed air and the system removes and prevents the accumulation of flammable gases in the enclosures. This system is used with our NEMA 4 boxes to meet the above requirements.

Cost is $4500 per heating unit. They can also be installed where one larger unit supplies up to four heaters at a total cost of $4500 plus an added $750 for each added heater controlled by the same unit.

This is a model 1003 from Bebco Industries and it can service up to 75 cubic feet of enclosures or four 36 x 48 enclosures.

Please contact us if you are in need of this kind of setup.

Tankless, Inc. 2060 Whitfield Park Ave., Sarasota, FL 34243 Phone: 1-800-TANKLESS 1-800-826-5537
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