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SS Immersion Heater with Multiple Screw Plug Sizes

Screw Plug Immersion Heaters


Item# EMH-110-120V

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$322.80
5-9 C$306.66
10-24 C$300.20
25-49 C$287.29
50-99 C$280.84
100+ C$274.38

In stock

Lead Time (If not in stock): 8 weeks
Screw Plug Immersion Heaters EMH-110-120V EMH-110-120V
  • 1/2, 3/4, and 1 1/4 NPT Screw Plugs
  • 316 SS Sheath
  • 400 to 1000 W
  • 120 and 240 V, 1-Phase

EMH-110-120V Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Connection Type
Heating Element Length
Power Density
Supply Voltage
Form Factor
Supply Voltage Type
Heated Medium
Sheath Material

Power: 120 and 240 V, 1-phase
Watt Density:
   5/8" Diameter: 37 W/in²
   ¾" Diameter: 38 W/in²
   1¼" Diameter: 24 W/in²
   5/8, ¾" Diameter: 12" fiberglass leads rated to 250°C (482°F), epoxy potting rated to 130°C (266°F)    1¼" Diameter: 8-32 screw and nut terminals
Sheath: 316 SS
Screw Plug and Threads: 316 SS

Wattage tolerances are held to 5 to 10% at rated voltage. Length tolerances are ±2% with a ±1/16" minimum

1. Welded end
2. Mica
3. Magnesium oxide packing
4. Element wire situated close to outside surface for maximum heat transfer and minimum internal temperature while preserving good dielectric qualities
5. Series 316 SS sheath
6. Mounting bushing
7. Ceramic cap
8. Flexible, stranded, nickel-alloy insulated leads or rust-resistantpost terminals

Refer to Dimensions Chart

Model No.DescriptionWattsDimensions: (in)
EMH-060-120V 5/8" diameter, 1/2 NPT 400 6 3/4 9/16 7/8
EMH-060-240V 5/8" diameter , 1/2 NPT 400 6 3/4 9/16 7/8
EMH-061-120V 3/4" diameter, 3/4 NPT 500 6 7/8 5/8 11/8
EMH-061-240V 3/4" diameter, 3/4 NPT 500 6 7/8 5/8 11/8
EMH-110-120V 11/4" diameter, 11/4 NPT 1000 11 13/4 7/8 3
EMH-110-240V 11/4" diameter, 11/4 NPT 1000 11 13/4 7/8 3
*Wattages are based on a unit operating immersed in water.
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Rated 5 out of 5 by from works good for boiling water I have bought several of these things over the years. 400 watts is not a lot of energy, but at 110 volt, this wattage is reasonable. omega sells a 220 version of this thing i have also used. boils water and lasts a long time. i have used these for continuous duty boiling. good part
Date published: 2019-04-17
Rated 5 out of 5 by from Perfect Solution! Hydronic heating system solution done right the first time.
Date published: 2018-05-12
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Can these be turned on without being submerged in water? We are having issues  with ours being turned on when water is not in the container.

Asked by: Scotty
These Heater are designed to work only when submerged and will fail in short order if not. They should be located in a tank were the liquid level never goes below were the full length of the Heater is located.
Answered by: Applications Engineer AB
Date published: 2021-05-04

Curious what the temperature of the heater is? On the 37 w/in2 model.

Asked by: cory15
Our immersion heaters need to be immersed in liquid while powered as to not overheat and fail. Because of the materials used in this heater we recommend a thermostat or controller limit the temperature to 266 deg F.
Answered by: RD Engineer
Date published: 2020-01-22

For the 1000w heater what is the highest temperature the unit will heat up to, if the unit is given full voltage and amps? 

Asked by: Remmik
The Heater generates 1000 Watt of Heating capacity and the characteristics of what is being heated like gallons and the specific heat of what is being heated will determine the maximum temperature. You can find calculations on line or contact Omega's temperature group at for assistance.
Answered by: Applications Engineer AB
Date published: 2021-05-17

What is the pressure rating for these heaters

Asked by: Justin1225
The maximum working pressure for the EMH series Heaters is 100 PSI.
Answered by: ApplicationsEngineerANB
Date published: 2021-09-21
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