Instant Water Heaters | McMaster-Carr

	Voltage Voltage

120V AC

208V AC

240V AC

277V AC

	Wattage Wattage

	Electrical Connection Type Electrical Connection Type


Hardwire	Plug

	Flow Rate Flow Rate

	Maximum Temperature Control Maximum Temperature Control

	Temperature Control Type Temperature Control Type

None

Adjustable Thermostat

	Maximum Water Temperature Maximum Water Temperature

	Current Current

	For Number of Faucets For Number of Faucets

	Depth Depth

17"

	Housing Material Housing Material

	For Outlet Tube ID For Outlet Tube ID

3/8"

1/2"

5/8"

	Width Width

5 1/4"

10 1/2"

	Water Temperature Rise Water Temperature Rise

	Temperature Control Method Temperature Control Method

	Heating Element Material Heating Element Material

Nickel

Copper

	Height Height

9 7/8"

10"

10 1/2"

	Estimated Yearly Energy Cost Estimated Yearly Energy Cost

	Connection Type Connection Type


Tube	Pipe

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

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

ETL

	For Minimum Water Pressure For Minimum Water Pressure

25 psi

30 psi

40 psi

	Connection Style Connection Style

17 Products

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