Electric Low Capacity

Light Duty Commercial

Electric cement lined water heater Model E
  • Light Duty
  • 6 - 119 Gallon Capacity
  • Up to 12KW - 1 Phase or 3 Phase

Ceiling Hung Horizontal

Electric horizontal ceiling hung water heater Model HE/HSE
  • Horizontal, Ceiling Hung
  • 19 or 30 Gallon Capacity
  • Up to 20 KW - 1 or 3 Phase

Heat Pump

Hybrid electric heat pump water heater Model PBX
  • Heat Pump Water Heater
  • 40 - 119 Gallon Capacity
  • 1 or 3 Phase

Point-Of-Use Water Heater

Mini compact point of use water heater
  • Point-of-Use
  • 2.5 Gallon Capacity
  • Digital Display

Point-Of-Use Storage

Point-of-use electric water heater Model CE110
  • Point-of-Use
  • 1 Gallon Capacity
  • 1000 or 450 Watts - 1 Phase

Point-Of-Use Tankless

Electric tankless point-of-use water heater Model R Tankless
  • Whole House / Point-of-Use
  • Availabe 3 thru 27 KW - 1 Phase

Circulation (Instantaneous)

Electric circulation heater Hubbell Model CR
  • Circulation (Instantaneous)
  • Heavy Duty Construction
  • 25-1600 KW - 1 or 3 Phase

Industrial Process Heater

Model V16
  • Process Systems & Industrial
  • ASME Stamped
  • Up to 88 KW - 1 or 3 Phase

Heavy Duty Commercial

Commercial heavy duty electric storage water heater Model SE
  • Heavy Duty
  • 6-119 Gallon Capacity
  • Up to 58 KW - 3 Phase

Tankless Commercial

Electric tankless water heater Model HX/TX
  • Tankless Commercial
  • Highly efficient tankless
  • Up to 162 KW - 1 or 3 Phase

Large ASME

Large capacity electric storage tank water heater Model SH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase

Commercial Condensing Gas Water Heater

Gas tankless water heater Model NX
  • High Efficiency Condensing Burner
  • 316L SS ASME Heat Exchanger
  • BTU input from 200,000 to 800,000 MBH

Commercial/ Industrial
Condensing Gas Water Heater

Gas tankless water heater Model NXT
  • High Efficiency Condensing Burner
  • 316L stainless steel and ASME stamped heat exchanger
  • BTU input from 200 to 400 MBH

DI / RO Gas

DI/RO gas fired tankless water heater Model DGX
  • DI/RO Water Heater
  • High Efficiency Condensing Burner
  • 199,950 and 250,000 BTU

Condensing Gas
Storage Water Heater

Condensing gas storage tank water heater Prime
  • High Efficiency Condensing Burner
  • Removable 316L SS Heat Exchanger
  • 55,000 BTUs

Large ASME
Steam Heater

Steam fired water heater large capacity Model ST
  • Storage Type
  • 80-5000 Gallon Capacity
  • ASME Stamped

Packaged Semi-Instantaneous

Semi-Instantaneous Steam Fired Water Heater Model STX
  • Semi-Instantaneous
  • Space saving design
  • Provides 10,500 GPH


Storage tank steam fired water heater Model PS
  • Light Duty
  • 65-119 Gallon Capacity
  • For low demand/recovery

High Capacity Instantaneous

Instantaneous steam fired water heater Model F
  • Instantaneous
  • 7 Sq. Ft. of floorspace
  • Up to 120 GPM

Semi-Instantaneous Indirect

Indirect fired semi-instantaneous water heater Hubbell Model BWX
  • Semi-Instantaneous
  • Vertical or Horizontal
  • ASME Stamped

Large ASME

Indirect fired storage tank water heater Hubbell Model BW
  • Storage Type
  • Vertical or Horizontal
  • 80-5000 Gallon Capacity

Small Capacity Indirect

Indirect fired storage tank water heater model T Transflow
  • Indirect Fired
  • 35-119 Gallon Capacity
  • Utilizes boiler water


Solar water heater Model SLN
  • Solar Heater
  • Vertical Storage Type
  • 65-119 Gallon Capacity

Indirect Plate Heat Exchanger

Plate Heat Exchanger Indirect Fired Water Heater Model BWP
  • Fully Packaged System
  • Full Range of Styles/Sizes
  • Storage Type

Indirect Plate Heat Exchanger

Plate Heat Exchanger Indirect Fired Water Heater Model BWXP
  • Compact Design
  • Instantaneous
  • Replaceable brazed plate or plate and frame


ASME and None ASME storage vessels Hubbell Model StorageTank
  • ASME & Non ASME designs
  • Hydrastone Cement
  • Vertical or Horizontal


ASME and None ASME storage vessels Hubbell Model BufferTank
  • Carbon Steel Construction
  • Long Warranty
  • ASME Section VIII, Division 1


Electric hazardous location water heater Model ER
  • Hazardous Location
  • 10-5000 Gallon Capacity
  • Up to 1600 KW - 1 or 3 Phase

Tepid Water for Emergency Fixtures

Electric safety shower water heater Model EMV
  • Emergency Tepid Water
  • Fully packaged system
  • Integrated mixing valve

Industrial Process Heater

Model V16
  • Process Systems & Industrial
  • ASME Stamped
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Compact

DI/RO electric hot water heater Model HD
  • RO/DI Water Heater
  • Point-of-Use Heater
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Storage

DI/RO electric hot water heater Model D
  • RO/DI Water Heater
  • 1-119 Gallon Capacity
  • Up to 88 KW - 1 or 3 Phase

Emergency Shower Tankless

Electric tankless safety shower water heater Model ETX
  • Tankless Emergency Tepid Water
  • NEMA 4 Standard
  • Up to 88 KW - 1 or 3 Phase

Fully Integrated Package

Model Packaged Skid Electric Fluid Heating System
  • Customized to your specifications
  • Full featured system ready for your application

Industrial Process Heater

Electric process industrial water heater Model V
  • Customized to your specification
  • Full featured system ready for your application

Light Duty

Electric water heater for shipboard marine use single phase power Model ME
  • Light Duty
  • 6-119 Gallon Capacity
  • Up to 6 KW - 1 Phase

Heavy Duty

Electric water heater for shipboard marine use three phase power Model MSE
  • Vertical
  • 6-119 Gallon Capacity
  • 1 or 3 Phase - Up to 58 KW

Large ASME

Electric water heater for shipboard marine use large capacity Model MSH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase


Naval shipboard marine electric water heater Hubbell Model 177
  • MIL Spec Navy Heaters
  • Comforms to MIL-H-965
  • Shock and EMI protection


Electric tankless water heater for shipboard marine use model MHX/MTX
  • Tankless Marine Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Fully Integrated Package

Shipboard Electric Water Heating System Model Integrated Skid
  • Customized to your specifications
  • Full featured system ready for your application

Electric Booster

Electric booster water heater Model J
  • Booster Heater
  • Provides 180°F water
  • Up to 88 KW - 1 or 3 Phase

Foodservice Tankless
Electric Booster

Electric tankless booster heater Model JTX
  • Tankless Booster Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Foodservice Gas
Fired Booster Heater

Gas fired booster heater Model PT
  • Gas Booster Heater
  • High Efficiency Condensing Burner
  • 55,000 to 199,000 BTU

Foodservice Point-of-Use
Water Heaters

Mini compact 2.5 Gallon Booster Heater
  • Hot water for remote locations
  • Perfect for glasswashers
  • 120V models available

Foodservice Sanitizing
Sink Heater

Model JSK
  • Provides rinse water for manual warewashing
  • Perfect for 3 compartment sinks
  • Available in 3,4,6 or 9 KW

Food Rethermalizer Baine-Marie Heater

Model JFR
  • Mounts under sink or holding vessel
  • Keeps food at SERV safe temperature
  • Available up to 9 KW

Foodservice Point-of-Use
Water Heater

Compact point-of-use electric water heater Model J1SSA
  • Point-of-Use
  • 1 Gallon Capacity
  • 1000 Watts - 1 Phase

Immersion Heating

Electric immersion tubular style heaters
  • Immersion Electric Heaters
  • Flanged or Screw Plugs Types
  • All KW ratings - 1 or 3 Phase

Heat Transfer

Heat exchanger and heating coil water heaters
  • Immersion Heat Transfer Coils
  • U tube type
  • Range of Materials

Stainless Steel T & P
Relief Valve

Stainless Steel T & P Relief Valve
  • 316 L Stainless Steel construction
  • Corrosion Resistant
  • ASME Section IV, HV Stamped

Gas Heat Exchanger

gas hx
  • 316 L SS Heat Exchanger/Burner
  • 55,000 BTU/HR input
  • Digital temperature controller
Electric High Capacity
Gas Fired
Steam Fired
Special Purpose
Foodservice Equipment
Elements & Exchangers
Product Center
Electric safety shower water heater Model EMV
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Model EMV

Commercial Electric Water Heater

Tepid Water Delivery System

The Hubbell Model EMV water heater is a packaged system designed to meet the requirements of ANSI/ISEA Z358.1-2014 for tepid water delivery to an emergency drench system. This heavy duty water heater is constructed of a carbon steel tank and internally lined with 1/2" thick Hydrastone cement to ensure tank longevity when operating at elevated temperatures, and is fully insulated with 3" thick polyurethane foam to minimize stand-by heat loss.

The water heater is packaged with a mixing valve specifically designed, tested and proven for use in emergency safety shower/face/eyewash applications. The entire package including the mixing valve is factory piped and mounted to the water heater to provide single source responsibility.

When you specify and install a Hubbell Model EMV, you will have the confidence in knowing that the owner will be provided with a long lasting, safe and dependable source of tepid water for their emergency drench system needs.

Download latest quick facts on RO/DI Water Heaters Download latest quick facts on RO/DI Water Heaters

Learn More About Hydrastone Cement Lining

cULUS Listed
  • Heavy Duty Construction

    • Hydrastone cement lining provides tank longevity
    • Copper-silicon alloy tappings cannot rust or corrode
    • High impact composite jacket cannot rust or corrode and eliminates potential damage during installation and transit
    • 3" thick polyurethane foam insulation reduces standby heat loss by over 24% compared to industry standard 2" insulated tanks
  • Packaged System

    • Factory packaged and piped mixing valve simplifies installation and ensures the safe and reliable supply of tepid water
    • All electrical operating controls are factory selected and wired to ensure reliable operation
    • Dial gauge provides visual indication of water temperature and pressure
  • Safety

    • Mixing valve designed specifically for emergency drench systems ensures a constant flow of tepid water
    • Mixing valve prohibits delivery of overheated water to prevent scalding
    • Provides tepid water even when an accident causes a loss of electric power
    • Reduces the risk of Legionella because water is stored at an elevated temperature
  • Reliable

    • Full five (5) year non pro-rated tank warranty
    • Each valve is performance tested at the factory to ensure proper operation

Mixing Valve

Operational Features
Hubbell Model EMV Mixing Valve

Packaged with the Hubbell model EMV is a triple redundant, thermostatic pressure balanced valve designed specifically for emergency safety shower/face/eyewash applications. The valve is factory mounted and piped to the water heater. After water flow is activated at the emergency station, the outlet water temperature from the model EMV package will be maintained at 85°F tepid temperature. The Hubbell EMV is able to achieve the high volume demand required for a safety drench system by mixing the 170°F water in the tank with incoming cold water. The mixing valve meets OSHA and ANSI requirements and is capable of providing constant 85°F output regardless of inlet pressure and temperature variations, and the temperature setting is tamper proof and cannot be inadvertently adjusted in the field. The water temperature is not warm enough to open skin pores and not cold enough to deter usage. The valve is capable of providing a full range of flows from the smallest flow of 0.4 GPM for an eyewash to the combined 23 GPM flow for a simultaneous demand of shower, eyewash, and face wash system.

Safety Features

The mixing valve incorporates a pressure sensing controller with a valve actuator that senses the water pressure on both the hot and cold water inlet connections. If hot water pressure is not present then the actuator overrides the mixing valve and a flow of cold water is allowed. If no cold-water pressure is available at the mixing valve inlet then the hot water port will close to prevent overheated water from exiting the mixing valve. The valve also includes a safety override feature that continuously senses the final mixed water temperature. If the final water temperature is overheated, the valve automatically closes the hot water port and fully opens the cold water port. In any of these fault conditions, the Hubbell EMV valve will continue to provide a full flow of water as per the ANSI standard with no additional pressure drop.

Hubbell Model EMV - How It Works

Safety Standards

OSHA 29 CFR 1910.151 states the following:
When the eyes or body of any person may be exposed to injurious corrosive, toxic, or flammable materials, suitable facilities for quick drenching or flushing of the eyes and body shall be provided within the work area for immediate emergency use.
ANSI/ISEA Z358.1-2014 states the following:
Delivered flushing fluid temperature shall be tepid. This standard also establishes minimum performance and use requirements for eyewash and shower equipment for the emergency treatment of the eyes or body of a person who has been exposed to injurious materials.

  • The shower must have a minimum of 20 GPM at 30 psi for 15 minutes of controlled flow [Para 4.1.3]
  • The eyewash must have a minimum of 0.4 GPM at 30 psi for 15 minutes of controlled flow [Para 5.1.6]
  • The eye/face wash must have a minimum of 3.0 GPM at 30 psi for 15 minutes of controlled flow [Para 6.1.6]
  • Units must meet all individual performance requirements when all components are operated simultaneously [Para 7.1]
  • In circumstances where chemical reaction is accelerated by flushing fluid temperature, a facilities safety/health advisor should be consulted for the optimum temperature. [Para 6.4.6]
Electric safety shower water heater Model EMV

How Does the Hubbell Unit Achieve these requirements?

The Hubbell EMV water heater system provides high volume tepid water for safety drench systems by integrating a specially designed mixing valve with a high quality cement lined electric storage water heater. The model EMV is designed to maintain 119 gallons of water at 170°F. The volume of water at this temperature is necessary to achieve the final flow rate of 23 GPM for 16 minutes of tepid water. When an emergency drench apparatus is used, the integrated mixing valve blends 170°F water from the tank with incoming cold water to achieve a continuous flow of approximately 85°F tepid water to operate simulataneously a safety shower and an eye/face wash fixture.

The Hubbell EMV package is specifically designed to meet your emergency drench system needs by incorporating the following critical features:
  1. The carbon steel tank is internally lined with specially formulated hydrastone cement and does not require anodic protection. This lining is critical to the longevity of the tank when storing hot water at elevated temperatures.
  2. The mixing valve is specifically designed for emergency safety drench systems and is factory piped and packaged with the water heater tank to simplify installation and ensure a safe and dependable system.
  3. The Hubbell EMV Model has 3" foam insulation which reduces stand-by heat losses by over 24% compared to 2" insulated tanks. This provides the owner with a highly efficient and economical solution for emergency drench systems.
  4. Unlike instantaneous heaters, the Hubbell model EMV is unaffected by the loss of electric power in its ability to provide tepid water. Furthermore, the dial temperature gauge provides the operator with positive visual verification that the unit is at temperature.

Note: For 30 GPM shower heads the Hubbell EMV will provide 75°F water for 15 minutes.

Model EMV Water Heater Specifications

Capacities: 119 Gallons (see note)
Orientation: Vertical
Voltages: 120 thru 600 Volt
Phase: 1 Φ or 3 Φ
Cold Water Inlet Size: 1 1/2" Female NPT
Tepid Water Outlet Size: 1 1/4" Female NPT
Drain Size: 3/4" GHT
Relief Valve Size: 3/4" Female NPT
Relief Valve Type: T&P, 210°F, 150 psi
Operating Range: 100-240°F (surface)
Piping: Copper Tubing
Mixing Valve Cv: 10.0
Pressure Drop at 20 GPM: 4 psi
Minimum Supply Pressure: 30 psi
Hi-Limit: 190°F
Design WP: 150 psi
Design TP: 300 psi
Elements: Copper Sheathed
Insulation: 3" Polyurethane Foam
Tank Warranty:
Standard: 5 Year Non Pro-Rated
Optional: 10 Year Non Pro-Rated
Electrical Warranty: 1 Year
Jacket: High Impact Colorized Composite
Finish: White with Black Trim
Note:Alternate storage capacities are available for smaller or larger requirements.

Outline Dimensions

Model EMV Outline Dimensions

Model EMV Dimensional Data

Storage Capacity (Gallons) Base Model Number Dimensions (Inches) Shipping Weight (Lbs)
Diameter "A" Height "B" Floor to Inlet "C" Floor to Outlet "D" Piping Height "E" Valve Offset "F"
119 EMV120 30 69.25 8 24 8 10 875
Note: Alternate storage capacities are available for smaller or larger requirements.

Formulas To Solve For:

Model EMV Formulas to solve for

Watts Recovery Rating in GPH 50-170°F Amperage Ratings Single Phase Voltages
120 V 208 V 240 V 277 V 480 V
1500 5.1 13 7 6 5 N.A.
3000 10.2 N.A. 14 13 11 6
4000 13.6 N.A. 19 17 14 8
4500 15.3 N.A. 22 19 16 9
6000 20.5 N.A. 29 25 22 13

Optional Equipment

  • Low temperature alarm dry contacts (alarm temperature is adjustable from 30-110°F)
  • Hi temperature alarm dry contacts (alarm temperature is the hi-limit set point, which is adjustable from 100-240°F)
  • Outdoor weather package includes a 304 Stainless Steel outer protective jacket, weather resistant NEMA 4X electrical housing, NEMA 4X enclosure surrounding the mixing valve and 6" high 304 stainless steel tank legs to raise the entire unit off the floor
  • Flow alarm indicator to signal that there is tepid water flow (requires 120v)
  • Explosion resistant construction for installation in a hazardous location. Standard is Class 1 Division 2, Group B. If application requires other please specify Class, Division and Group rating required.
  • Three Phase voltage available
  • ASME tank construction
  • Alternate mixing valve tepid water set temperature 75°F. Note: 85°F is standard set temperature. Mixing valves are not intended to be field adjustable
  • Mount and pipe multiple (two or three) storage tanks on one skid to meet the needs of larger demand systems
  • NEMA 4X enclosure provides added protection for the mixing valve in outdoor environments. Optional: Enclosure air purge fittings and stainless steel inlet fittings for corrosive environments
  • Alternate heating source. Factory installed heat exchanger to utilize steam or boiler water
  • Integrally welded seismic attachment points.
  • All hot and cold water piping on the heater package to be heat traced from the factory for freeze protection, to include an insulation jacket for the thermostatic mixing valve. Please note that all external piping to the heater need to be heat traced in the field.

Model Number Designation EMV

EMV 120
Step 1

Storage Capacity:
119 U.S. Gallons
Optional storage
capacities available
Step 2
Tepid Water

Step 3
1.5, 3, 4, 4.5, 6
Step 4
Tank Type:
SL = Hydrastone Cement lined tank
SS = Solid stainless steel tank
CS = Solid copper-silicon tank

Step 5*
A = 120-1-60
RS = 208-1-60
R = 208-3-60
S = 240-1-60
T = 240-3-60
W = 277-1-60
T3 = 380-3-50/60
T7 = 415-3-50/60
T5 = 440-3-60
T4 = 480-3-60
T4S = 480-1-60
T6 = 600-3-60
Alternative Heating Source:
GS = Gas
ST = Steam
BW = Hydronic
*Note: Alternative Voltages available



Model EMV emergency tepid water delivery system with a storage capacity of 119 Gallons, 85°F set point of the mixing valve and a 3 KW rating. Storage tank is lined with Hydrastone cement and operates at 240 Volts single-phase power.

Model EMV Spec Sheet
Printable Version
Search FAQs

Model EMV Specific Questions

Why is a storage heater preferred over a tankless heater?

There are a number of factors that make a storage system more desirable than a tankless system for delivering tepid water to your safety shower. Infrastructure, pressure drop, reliability, and serviceability are the major areas where there is a significant difference between the two systems. Regarding infrastructure, a storage system is typically rated 6kw or less and a tankless system is typically rated around 150kw, a significant difference when considering wire and circuit breaker size and electrical demand, not to mention installation costs. A storage system can operate on either 1 or 3 phase power and draws at most 25 amp depending upon your power selection, whereas a tankless system is practical only in 3 phase power and draws 180 amps or more. Pressure drop through a storage system is less than 4 psi, whereas a tankless system is likely to result in a pressure drop of 15 psi or more, potentially resulting in insufficient flow through the safety shower. With respect to reliability, a storage system utilizes well proven and long fielded technology and is extremely reliable, not to mention the fact that because the system operates using stored hot water, you have visual positive verification that the system is fully hot and ready to provide tepid water before an emergency situation arises. A tankless heater on the other hand is in “standby” mode until such time that it is required. If the unit for some reason is inoperable or malfunctions, there is no way for an operator to know its status prior to an emergency event. This could be disastrous for an injured person, not to mention the facility owner, if a person is unable to properly wash down due to a malfunctioning or inoperable heater. Finally, because a tankless heater requires sophisticated controls to operate and control temperature, it has significantly more potential failure points compared to a storage system, making it not only less reliable but significantly more difficult and expensive to maintain and service.

What temperature is tepid water?

Hubbell has designed its safety shower water heater to provide as standard 85°F tepid water, although 75°F is available as an option. In the ANSI /ISEA Z358.1-2009 American National Standard for Emergency Eyewash and Shower Equipment standard, tepid water requirements are in the Definitions section and are clearly defined as water ranging between 60°-100°F. ANSI defines "tepid water" as "A flushing fluid temperature conducive to promoting a minimum 15 minute irrigation period. A suitable range is 16-38°C (60-100°F)". Medical professionals recommend that tepid flushing fluids be used to treat chemically injured eyes and body tissue. Temperatures that exceed 100°F can enhance chemical interaction with the eyes and skin. Conversely, water temperatures below 60°F can cause hypothermic shock. The ANSI Z358.1-2009 standard states that while cooler flushing fluids may provide immediate relief after chemical contact, “prolonged exposure to cold fluids affects the ability to maintain adequate body temperature and can result in the premature cessation of first aid treatment”.

If I lose power, will I continue to get tepid water?

Yes. This is one advantage of the Hubbell model EMV storage tepid water heater. Because the Hubbell tepid water heater design utilizes a storage tank, there is always a sufficient supply of hot water on standby and ready for an emergency fixture. Once the Hubbell storage tank achieves its set temperature, the unit will deliver tepid water even when there is a disruption of electric power to the heater (i.e. during an emergency).

What if I want to supply tepid water to more than one safety shower?

The amount of hot water required to supply tepid water per safety shower is 120 gallons. For two safety shower systems, specify the Hubbell model EMV240 which consists of two 120 gallon tanks mounted to a common skid assembly and factory piped with one mixing valve. Generally speaking, the optimal system design is to place the water heater as close to the safety shower as possible. If your system consists of more than two safety showers, you may want to consider installing one model EMV120 tepid water heater for each safety shower. Alternatively, a centrally located large storage tank (storage capacity sized at 120 gallons for each safety shower) with factory integrated mixing valve(s) may be specified to service a circulating loop. There are certain design challenges associated with a central system, Hubbell recommneds consulting with a Sales Engineer before selecting this method.

What is the pressure drop through the Hubbell model EMV water heater?

At 23 GPM (the full flow of a 20 GPM safety shower and 3 GPM of a combination face/eyewash station) the pressure drop across the entire Hubbell EMV emergency safety shower water heater is less than 4 psi.

General Questions

Where can I purchase a Hubbell water heater?

There are numerous ways to purchase a Hubbell water heater depending upon the model you desire and your geographic location. The easiest way is to contact Hubbell directly at 800-647-3165 and ask for the sales department where you will be directed to either our local representative or our order entry department for quick and easy ordering.

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.

I don't see the size or feature I need, what do I do?

Hubbell has more than 35 product families available in over 4,000,000 configurations. There are numerous features, configurations and ratings we provide but for practical reasons are are not listed in the sales brochure. If you have a specific requirement and you do not see it in the brochure, please contact a Hubbell Sales Engineer...chances are we have what you need.

What should I know about Legionella disease?

Legionella is the bacteria responsible for Legionnaire’s Disease, an acute bacterial infection of the lower respiratory tract. This bacterium was first identified in 1977 by the Centers for Disease Control as the cause of an outbreak of pneumonia that caused 34 deaths at a 1976 American Legion Convention in Philadelphia. Pontiac Fever is a less severe, non-pneumonia, flu-like disease that is associated with and likely caused by Legionella bacteria. Legionella is a fairly common water bacterium and has been found to exist widely in many surface water sources including lakes, rivers, streams and ponds. It can also be found in ground water sources and some soils. At the levels found in these naturally occurring sources it typically does not pose a threat to public health. When the bacterium enters a domestic water system it can find an ideal host environment of warm water temperatures (105-115°F), stagnant water areas (isolated storage tanks and dead-end piping legs) and ample food sources (sediment, scale, deposits and biofilm). Under these conditions Legionella can rapidly colonize, forming higher concentrations that can pose the public health threat of Legionnaire’s Disease. There are many methods of controlling colonization of Legionella bacteria. However, a widely accepted and preferred method is to maintain the hot water system storage temperature continually at or above 140°F. Unfortunately, the elevated temperature necessary to minimize the growth of and kill Legionella bacteria has the potential to cause serious thermal shock and scalding injuries. As such, many plumbing engineers will specify that the water heater be set to maintain water temperatures at 140°F or higher to reduce the risk of Legionella, but then specify the appropriate mixing valve to ensure safe delivery of hot water to the fixtures. For a more thorough discussion of Legionella please go to here and the following link to the US Department of Labor OSHA information regarding Legionnaires’ Disease OSHA here

My question is not found in these FAQ’s, where do I look next?

Check out the Hubbell Product Center at Here for a complete listing of all technical documentation available by model. Get easy access to Installation, Operation & Maintenance manuals, Sales Brochures, Service Bulletins, Wiring Schematics, Parts Breakdowns and various other technical documents related to the full line of Hubbell water heaters. Or, if you prefer, please call us at 800-647-3165 and ask to speak to a Sales Engineer.


Model EMV Specific Questions

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.

For Further Assistance Please Contact a Hubbell Tech Support Rep.

Tech Support Email

Hubbell Heaters
45 Seymour Street
P.O. Box 288
Stratford, CT 06615-0288
Tel: 203-378-2659
Fax: 203-378-3593
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