Description
Stiebel Eltron MINI3-1 120V Point-of-Use Tankless Electric Water Heater
Brand: Stiebel Eltron SKU: MINI3-1
Product Overview
The Stiebel Eltron MINI3-1, item number 220816, is a compact electric tankless water heater for point-of-use service at a low-flow fixture. It runs on 120 V power and delivers 3.0 kW of on-demand heating without a storage tank. Its small cabinet is designed to mount close to the sink, helping reduce hot-water wait time while saving wall or cabinet space.
Key Features:
- Compact point-of-use design: Installs close to the fixture to save space and help reduce the wait for hot water at a single low-flow sink.
- Tankless electric operation: Heats water on demand, so there is no storage tank to keep hot between uses.
- 120 V dedicated-circuit model: Designed for 120 V, 1-phase power where a properly sized dedicated circuit is available.
- 3.0 kW heating output: Provides localized hot water for small fixtures such as hand-washing sinks when matched to the proper flow rate and inlet water temperature.
- Low activation flow: Activates at 0.40 GPM, making it suitable for controlled low-flow point-of-use applications.
- Small cabinet dimensions: The 6.5 in x 7.5 in x 3.25 in body fits in tight mechanical spaces, cabinets, or near remote sinks.
Technical Specifications:
- Model / SKU: MINI3-1
- Source model reference: Mini 3-1
- Item number: 220816
- Brand: Stiebel Eltron
- Product type: Point-of-use tankless electric water heater
- Voltage: 120 V
- Phase: 1-phase
- Rated power: 3.0 kW
- Rated current: 25 A
- Recommended circuit breaker: 30 A
- Recommended wire size: 10 AWG copper
- Minimum activation flow: 0.40 GPM / 1.5 l/min
- Water connections: 3/8 in O.D.
- Maximum allowable pressure: 150 PSI / 10 bar
- Dimensions: 6.5 in H x 7.5 in W x 3.25 in D
Installation & Versatility:
- Electrical requirements: Install on a dedicated 120 V, 1-phase circuit sized for 25 A operation, with the recommended 30 A breaker and 10 AWG copper wiring.
- Plumbing connections: Connect using the specified 3/8 in O.D. water connections and follow the flow direction and local plumbing code requirements.
- Fixture placement: Mount close to the point of use to reduce distribution distance and support the low-flow fixture application this model is designed for.
- Flow requirement: Ensure the fixture provides at least the listed 0.40 GPM activation flow for the heater to turn on.
- Qualified installation: Use a qualified installer and follow the manufacturer’s installation instructions and all local electrical and plumbing codes.
Common Applications:
- Bathroom hand sinks: Good fit for a single low-flow lavatory or hand-washing sink where hot water is needed at the point of use.
- Remote sinks: Useful for a sink located far from a central water heater, helping reduce piping distance and wait time.
- Office or commercial lavatories: Can serve small low-flow hand-washing fixtures when electrical service and flow conditions match the model specifications.
- Cabinet or tight-space installations: The compact dimensions make it practical for under-sink or nearby wall mounting where space is limited.
Frequently Asked Questions:
- Q: What is the item number for this MINI3-1 model?
- A: The source document identifies the Mini 3-1 version as item number 220816.
- Q: What are the dimensions of the Stiebel Eltron MINI3-1?
- A: The listed dimensions are 6.5 in high x 7.5 in wide x 3.25 in deep.
- Q: Is the MINI3-1 a plug-in water heater?
- A: The source specifications list 120 V, 25 A operation with a recommended 30 A breaker and 10 AWG copper wire. It should be installed on a properly sized dedicated circuit according to the manufacturer’s instructions and local code.
- Q: What type of fixtures is this model best for?
- A: This model is best suited for a single low-flow point-of-use fixture, such as a bathroom or hand-washing sink.
- Q: Does the MINI3-1 provide a fixed outlet temperature?
- A: A fixed outlet temperature is not listed in the extracted specifications. Actual outlet temperature depends on incoming water temperature and flow rate.
The Stiebel Eltron MINI3-1 is a compact 120 V point-of-use tankless solution for small sinks and low-flow hot-water needs. Big Frog Supply recommends confirming electrical capacity, fixture flow rate, and code requirements before installation.
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