A.O. Smith Signature Series 240-Volt 28-KW 2.4-GPM Tankless Electric Water Heater

Ships from manufacturer
Saber's: Item #1055544 | Model #R4LR-280E
Special Order Regular price £550.00 inc. VAT

Ships in 1–5 business days

This product is dispatched directly by the manufacturer. Please allow additional time for supplier processing.

Estimated delivery Calculating delivery estimate… Estimated arrival is generally within 1–10 business days.
1–10 Business Days

Delivery dates are estimates, not guarantees. Timing varies by manufacturer processing, order time, destination ZIP code, weekends, holidays, weather, inventory availability and carrier conditions. Tracking is provided after the manufacturer dispatches the order.

%3Cp%3EEarn%20[points_amount]%20when%20you%20buy%20this%20item.%3C/p%3E
Simplify your morning routine with this A. O. Smith tankless water heater that delivers enough continuous hot water for 1 shower and 4 sinks (based on a 2.5 GPM showerhead in the southern zone) when sized appropriately. This Signature Series electric tankless hot water heater makes a great choice for applications such as cabins, apartments, and small homes since the unit only heats water when it's needed for potential energy and money savings. This small tankless electric water heater also mounts on the wall, saving you valuable storage space, and the soft start design enables a softer electric draw when powering on, reducing light dimming. Keep in mind that professional installation is recommended for a tankless hot water heater since these units typically require greater electrical supply capacity than standard tank-type models. Please ensure your home can support the 116.7 amps, 2 x 60-amp double pole breakers, #6 AWG wire size and 240-volt water heater wiring required for this model and that you have enough space in your breaker panel.
  • Delivers the ideal amount of continuous hot water for 1 shower and 4 sinks when sized appropriately (0.5 GPM faucets and 2.5 GPM showerhead)

  • Frees up valuable storage space with compact design

  • Offers easy wall mount installation that uses standard 3/4-in NPT water connections and doesn't require venting

  • Has no moving parts for simple maintenance and uses standard heating elements for easy replacement

  • Reduces harmful mineral deposits and extends product life with scale reduction technology and heat element power sharing

  • Dry-fire protection prevents premature element failure for worry-free installation

  • Enables simple temperature adjustment from 90 to 140 degree F via an intuitive digital interface

  • Provides peace of mind with a 5-year limited chamber guarantee and a 1-year limited parts and labor warranty

  • Try our product selector tool to see if this is the right water heater for you

  • Type Water Heater
  • Vendor A.O Smith
  • Saber's Item #1055544 | Model #R4LR-280E
  • Barcode 671657063962
  • Dimensions Depth (Inches)
    6.13
    Height (Inches)
    18.13
    Width (Inches)
    17.0
  • Specifications For Use with Mobile Homes
    Yes
    Point of Use
    No
    Grade
    Residential
    Power Source
    Electric
    Hybrid Heat Pump Technology
    No
    Uniform Energy Factor
    0.92
    Installation Location
    Wall mount
    Use Location
    Indoor
    Installation Type
    Wall mount
    Voltage (Volts)
    240
    Maximum Gallons per Minute
    2.4
  • Weight 20 lb
  • Color/Finish Gray
  • Style Tankless
  • Returnable Non-Returnable
  • Warranty 5-year limited
  • Saber Sales Exclusive No
  • CA Residents Prop 65 Warning(s) Yes

All special orders take about 1-7 business days to process and ship out.

Your order will be packaged with care and discretion. Items are securely wrapped to prevent shifting while in transit.

Orders Over A Certain Weight Are Subject To Pallet Deliveries Which Could Be Subject To Higher Shipping Costs, However Shipping Speeds Remain The Same. Depending On Location.

When your order is shipped, you will receive an email notification which includes a tracking number.

Saber Sales Exclusive: No

  • Weight 20 lb
  • Warranty 5-year limited
  • CA Residents Prop 65 Warning(s) Yes

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Special-order product information

Ordered for you directly from the supplier

Special-order and preorder products are not handled exactly like standard stocked merchandise. Review the process, estimated timing and product details before placing your order.

Ask Before Ordering
Special Order / Preorder

A.O. Smith Signature Series 240-Volt 28-KW 2.4-GPM Tankless Electric Water Heater

This item is ordered, allocated or dispatched specifically for your purchase. Supplier availability and processing must be confirmed before shipment.

Brand: A.O Smith Product type: Water Heater SKU: Item #1055544 | Model #R4LR-280E Status: Special order Online availability: Available to order

Processing Time

Processing estimates are separate from carrier transit time. Supplier delays, backorders and verification can extend the estimated ship date.

View Shipping Information →

Direct Fulfillment

Some special-order products ship directly from the manufacturer or distributor instead of shipping from a Saber Sales facility.

Track an Order →

Returns & Cancellations

Eligibility varies by item and order status. Some special orders may have different return, cancellation, restocking or shipping terms.

Review Refund Policy →
?

Product Verification

Confirm the model, dimensions, color, voltage, capacity, pack size and compatibility before placing the order.

Ask a Product Question →

Typical special-order timeline

This is a general process overview, not a guaranteed delivery schedule. Product-specific estimates shown above the Add to Cart button take priority.

Stage 1 Order received

Your payment, billing and delivery details are submitted for processing.

Stage 2 Availability confirmed

The supplier confirms inventory, allocation or expected availability.

Stage 3 Packed and dispatched

The product is prepared for parcel, freight or another applicable delivery method.

Stage 4 In carrier transit

Tracking becomes available and the carrier begins final transportation.

Special-order questions

Is the item already in a Saber Sales warehouse?
Not necessarily. A special-order item may be sourced or shipped directly from a manufacturer, distributor or another fulfillment location after the order is placed.
Is the processing estimate a guaranteed delivery date?
No. Processing time describes how long the supplier may need before shipment. Carrier transit time begins afterward. Supplier, inventory, weather and carrier delays can affect the final delivery date.
When will I receive tracking?
Tracking is normally issued after the supplier or fulfillment location has prepared the order and the carrier has accepted the shipment.
Can I cancel a special order?
Contact Saber Sales immediately. Cancellation is not guaranteed after supplier processing begins. Fees or restrictions may apply depending on the item and order status. Review the Refund Policy.
Can a special-order product be returned?
Return eligibility depends on the individual product and current policy. Some items may be returnable while others may be final sale, subject to restocking fees or require return shipping. Review the product details and Refund Policy before ordering.
What happens if the supplier cannot fulfill the order?
Saber Sales may contact you with updated availability, a revised timeline, an alternative option or additional instructions. Do not schedule installation until the product has arrived and been inspected.
Can I request a quote for multiple special-order products?
Yes. Add the products and quantities to your cart and follow the instructions on the Quotes page. Quote pricing does not guarantee inventory reservation.
Should I schedule an installer before delivery?
No. Wait until the complete product has arrived, been inspected for damage and confirmed to match your order before scheduling installation.
!

Verify the item before placing your order

Special-order products may begin supplier processing shortly after purchase. Confirm the manufacturer, model number, size, finish, voltage, fuel type, pack quantity and other specifications before ordering. Do not rely only on the product image. Contact Saber Sales before checkout when any specification is unclear.