Inline Water Heaters | McMaster-Carr

	Voltage Voltage

120V AC

208V AC

240V AC

277V AC

480V AC

	Wattage Wattage

	Electrical Phase Electrical Phase

Single

Three

	Temperature Control Type Temperature Control Type

Adjustable Thermostat

None

	Pipe Size Pipe Size

3/4

	Electrical Connection Type Electrical Connection Type


Hardwire	Plug

	Maximum Temperature Control Maximum Temperature Control

	Heater Type Heater Type

Immersion

Water

	Overall Length Overall Length

	Current Current

	Heating Element Material Heating Element Material

Copper

Incoloy

Nickel

	Heating Element Length Heating Element Length

	Flow Rate Flow Rate

	Temperature Control Method Temperature Control Method

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Water Temperature Maximum Water Temperature

	Connection Style Connection Style

Threaded

Compression

	Minimum Temperature Control Minimum Temperature Control

	Body Material Body Material

Brass

Steel

	Maximum Pressure Maximum Pressure

100 psi

150 psi

	For Number of Faucets For Number of Faucets

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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25 Products

Selecting an Immersion Heater

With Temperature-Control Screw

With Temperature-Control Dial

Also known as circulation heaters, these install directly into pipelines to quickly and efficiently heat liquid through direct contact. An adjustable thermostat automatically turns the heater on when the temperature drops below the set temperature and off when it rises above the set temperature. Adjust the set temperature with the screw or dial.

Incoloy heating elements are more corrosion resistant than copper heating elements.

For technical drawings and 3-D models, click on a part number.

			Heating Element			Temp. Control
Wattage, W	Watt Density, W/sq. in.	Current, A	Lg.	Wd.	No. of	Method	Range, °F	Pipe Size	Thread Type	Gender	Wire Connection Type		Each
Copper Heating Element with Brass Body
120V AC, Single Phase
1,500	34	12.5	11 1/4"	4"	1	Screw	60° to 180°	1	NPT	Female	Screw Terminals	0000000	000000000
2,000	47	16.7	11 3/4"	4"	1	Screw	60° to 180°	1	NPT	Female	Screw Terminals	0000000	00000000
240V AC, Single Phase
3,000	51	12.5	16"	4"	1	Screw	60° to 180°	1	NPT	Female	Screw Terminals	0000000	00000000
Incoloy Heating Element with Steel Body
480V AC, Three Phase
6,000	50	7.3	28 13/16"	5 5/8"	3	Dial	60° to 250°	1	NPT	Male	Wire Leads	000000000	00000000
12,000	50	14.5	39 9/16"	5 5/8"	3	Dial	60° to 250°	1	NPT	Male	Wire Leads	000000000	00000000
18,000	50	21.7	51 5/16"	5 5/8"	3	Dial	60° to 250°	1	NPT	Male	Wire Leads	000000000	00000000
24,000	50	29	37 5/16"	8"	6	Dial	60° to 250°	2	NPT	Male	Wire Leads	000000000	00000000
40,000	50	48	55 3/4"	8"	6	Dial	60° to 250°	2	NPT	Male	Wire Leads	000000000	00000000

Point-of-Use Water Heaters

Also called tankless water heaters, these provide hot water on demand and take up less space than heaters with a tank. They are easier to install than gas tank heaters and don’t require a relief valve. All turn on when water flows through the heater and turn off when the flow stops.

Estimated yearly energy cost is based on electricity cost of $0.12 per kWh. For more information, visit www.ftc.gov/energy.

Heaters with an adjustable thermostat let you set the exact water temperature you need. Screws are inside the enclosure to prevent accidental movement.

Heaters without temperature control do not provide precise control. The temperature of the water coming out depends on the temperature of the water going in.

Heater for four faucets can be used with circular multistation wash fountains or a single shower.

Adjustable Thermostat with Digital Keypad—1/2" OD Bottom Compression Tube Connection

240V AC, Single Phase
Water Temp. Rise	For No. of Faucets	Wattage, W	Current, A	Max. Water Temp., °F	For Water Pressure Range, psi	Flow Rate, gpm	Ht.	Wd.	Dp.		Each
22° F @ 2 gpm 30° F @ 1.5 gpm 45° F @ 1 gpm 59° F @ 0.75 gpm	1	6,500	27	140°	25 to 150	0.7 to 2.5	9 7/8"	5 1/4"	4"	00000000	0000000
33° F @ 2 gpm 43° F @ 1.5 gpm 65° F @ 1 gpm 87° F @ 0.75 gpm	1	9,500	40	140°	25 to 150	0.7 to 2.5	9 7/8"	5 1/4"	4"	00000000	000000

Adjustable Thermostat with Screw—3/4 NPT Male Bottom Pipe Connection

240V AC, Single Phase
Water Temp. Rise	For No. of Faucets	Wattage, W	Current, A	Max. Water Temp., °F	For Water Pressure Range, psi	Flow Rate, gpm	Ht.	Wd.	Dp.		Each
32° F @ 4 gpm 43° F @ 3 gpm 52° F @ 2.5 gpm 65° F @ 2 gpm	1	19,000	80	180°	40 to 150	1.5 to 4	10"	10 1/2"	3"	00000000	0000000
43° F @ 3 gpm 52° F @ 2.5 gpm 65° F @ 2 gpm 87° F @ 1.5 gpm	4	19,000	80	110°	40 to 150	0.7 to 3	10"	10 1/2"	3"	00000000	000000

Without Temperature Control—3/8" OD Bottom Compression Tube Connection

Water Heaters													Replacement Heating Elements
Water Temp. Rise	For No. of Faucets	Wattage, W	Current, A	Estimated Yearly Energy Cost	Max. Water Temp., °F	For Water Pressure Range, psi	Flow Rate, gpm	Ht.	Wd.	Dp.		Each		Each
120V AC, Single Phase
41° F @ 0.5 gpm	1	3,000	25	$74 @ 0.2 gpm	150°	30 to 150	0.3	10 1/2"	5 1/4"	3"	0000000	0000000	000000	000000
208V AC, Single Phase
56° F @ 0.5 gpm	1	4,100	20	$74 @ 0.4 gpm	150°	30 to 150	0.4	10 1/2"	5 1/4"	3"	0000000	000000	000000	00000
240V AC, Single Phase
43° F @ 1.5 gpm 65° F @ 1 gpm	1	9,500	40	$74 @ 0.8 gpm	150°	30 to 150	0.8	10 1/2"	5 1/4"	3"	0000000	000000	0000000	00000
48° F @ 0.5 gpm	1	3,500	15	$74 @ 0.3 gpm	150°	30 to 150	0.3	10 1/2"	5 1/4"	3"	0000000	000000	000000	00000
75° F @ 0.5 gpm	1	5,500	23	$74 @ 0.5 gpm	150°	30 to 150	0.5	10 1/2"	5 1/4"	3"	0000000	000000	000000	00000
277V AC, Single Phase
56° F @ 0.5 gpm	1	4,100	15	$74 @ 0.3 gpm	150°	30 to 150	0.4	10 1/2"	5 1/4"	3"	0000000	000000	0000000	00000

Portable Water Heater/Recirculators

5-15

Often used to recirculate hot water in process baths and sinks, these lightweight heater/recirculators boost water temperature on the go. An adjustable thermostat adjusts and maintains water temperature to within 0.25° F. For safety, these heater/recirculators should only be plugged into GFCI receptacles. The pump must be placed below the liquid source. Flow rate is not adjustable.

Estimated yearly energy cost is based on electricity cost of $0.12 per kWh. For more information, visit www.ftc.gov/energy.

						Tube Connection Type
Temp. Control Range, °F	Max. Flow Rate, gpm	Wattage, W	Current, A	Estimated Yearly Energy Cost	NEMA Style	Inlet	Outlet	For Outlet Tube ID	Ht.	Wd.	Dp.	Weight, lbs.	Housing Material	Includes		Each
120V AC, Single
75° to 110°	8.5	1,000	8.7	$251 @ 9 gpm	5-15	Push On	Barbed	5/8"	7"	9"	17"	13	Stainless Steel	Two 6-ft. Long, 5/8" ID Water Hoses	00000000	000000000
75° to 175°	8.5	1,500	14	$251 @ 9 gpm	5-15	Push On	Barbed	1/2"	7"	9"	17"	15	Stainless Steel	Two 6-ft. Long, 1/2" ID Water Hoses	00000000	00000000

Selecting an Immersion Heater

Inline Immersion Heaters for Water

Point-of-Use Water Heaters

Portable Water Heater/Recirculators