Stiebel Eltron Mini 4-2 Single Handwashing Sink Electric Tankless Water Heater

SKU 222039

by Stiebel Eltron

Save $36.00

$215.00

$215.00 - $215.00

$215.00

$179.00

$179.00 - $179.00

$179.00

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in stock

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The Stiebel Eltron Mini 4-2 tankless water heater is designed for installation at the point-of-use, or under the sink. 240V/208V - 3.5kW Mechanical

The Mini heats water instantaneously as it flows through the unit. Stand-by heat losses are completely eliminated. The efficient heating elements are controlled by a simple flow switch. Additionally, all Mini water heaters are equipped with a safety high limit with a manual reset.

Flow controls and faucet aerators are highly recommended in conjunction with tankless water heaters. The Mini™ 3.5-1 and 4-2 models ship with a 0.66 GPM pressure compensating flow reducer/aerator. All aerators are designed to fit the most common faucets. No pressure relief valve, drains, or circulating pumps are needed.

Features:

Extremely compact design saves space. Only 7.5″ x 6.5″.
Major energy savings
Unlimited supply of hot water
Proven reliability
Can be mounted with fittings pointing up or down
Perfect for Bathroom sinks (Commercial, Residential)
Ideal energy/water-saving solution for Boats, RVs, small cabins where space is a premium and hot water is required
Sleek design is appealing and can be mounted in plain sight
Can be mounted with fittings pointing up or down
Pre-wired pigtail included

Order Processing and Shipping

Rise ships manufacturer direct. We work hard so you receive your product(s) as quickly as possible. Learn more about our order processing & shipping times here.

Quantity

Specifications

Mechanical models	Mini™ 2-1 (231045)	Mini™ 2.5-1(232098)	Mini™ 3-1 (220816)	Mini™ 3.5-1 (232099)	Mini™ 4-2 (222039)		Mini™ 6-2 (220817)
Thermostatic Models	Mini™-E 2-1 (236011)	Mini™-E 2.5-1 (236135)	Mini™-E 3-1 (236010)	Mini™-E 3.5-1 (236136)	Mini™-E 4-2 (236009)		Mini™-E 6-2 (236008)
Phase - 50/60 Hz	1
Voltage	120 V	120 V	120 V	120 V	240 V or 208 V		240 V or 208 V
Wattage	1.8 kW	2.4 kW	3.0 kW	3.5 kW	3.5 kW	2.6 kW	5.7 kW	4.3 kW
Amperage	15 A	20 A	25 A	29 A	15 A	13 A	24 A	21 A
Min. recommended circuit breaker size (1)	15 A (SP)	20 A (SP)	25 A (SP)	30 A (SP)	15 A (DP)		25 A (DP)
Min. recommended wire size (2)	14/2 AWG	12/2 AWG	10/2 AWG	10/2 AWG	14/2 AWG		10/2 AWG
Minimum water flow to activate unit
Mechanical Units	0.21 gpm (0.8 l/min	0.40 gpm (1.5 l/min)	0.40 gpm (1.5 l/min)	0.40 gpm (1.5 l/min)	0.40 gpm (1.5 l/min)		0.77 gpm (2.9 l/min)
Thermostatic Units	0.21 gpm (0.8 l/min)	0.30 gpm (1.15 l/min)	0.30 gpm (1.15 l/min)	0.30 gpm (1.15 l/min)	0.30 gpm (1.15 l/min)		0.48 gpm (1.8 l/min)
Water temp. range	Electronic units are adjustable from 86–122°F (30–50 °C)
Energy Factor (EF) (Mechanical / Thermostatic)	0.98 / 0.97 (UEF)	1.0 / 0.99	0.99 / 0.99	0.99 / 0.99	0.99 / 1.0		0.99 / 1.0
Weight	3.44 lb (1.56 kg)
Dimensions	Width 7½" (19.0 cm) x Height 6½" (16.5 cm) x Depth 3¼" (8.2 cm)
Water volume in unit	0.026 gal (0.1 l)
Minimum pressure	30 psi (2 bar)
Working pressure	150 psi (10 bar)
Tested to pressure	300 psi (20 bar)
Water connections (4)	3 /8˝ O.D. flexible braided stainless steel hose connectors

Mini™ 2-1 is internally restricted to 0.32 gpm (1.2 l/min). Mini™-E 2-1 is internally restricted to 0.40 gpm (1.5 l/min).

All Mini™ models ship with appropriately sized pressure compensating flow-reducer/aerators that must be installed.

1 Nominal mains voltage is 110–120 V and 220–240 V.

2 This is our recommendation for overcurrent protection sized at 100% of load. Check local codes for compliance if necessary. Tankless water heaters are considered a non-continuous load.

3 Copper must be used. Conductors should be sized to maintain a voltage drop of less than 3% under load.

4 Mechanical units suitable for supply with cold water only. Thermostatic units can accept inlet water of 122 °F.