StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › IDEALHOUSE
IdealHouse
IdealHouse 240V Electric Tankless Water Heater

IdealHouse 240V Electric Tankless Water Heater

Best price now

$173.86at Lowe'sChecked 35 min ago

Prices are checked against each store and labelled with when.

Visit Lowe's

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $173.86 at Lowe's (checked Nov 13, 2026).

Our take on the IdealHouse 240V Electric Tankless Water Heater

The IdealHouse is an 18kW, 240V electric tankless heater that mounts under a sink or near a shower and heats water on demand instead of storing it in a tank. Its 13.8 x 11.4 x 3.5 inch body frees up space a tank would take, and self-modulating electronics match power draw to flow and temperature. It is built for one or two points of use at a time, so it suits a single bathroom, kitchen or cabin rather than a whole house. Against tank-style heaters it saves space and avoids standby losses; against larger whole-home tankless units it delivers less output and needs a dedicated 240V circuit.

Best forPoint-of-use under-sink or shower installsSmall homes, cabins and additionsReplacing a tank where space is tightOne or two fixtures used at once
Pros
  • Compact wall-mount body saves space versus a tank
  • 18kW at 240V gives instant, continuous hot water
  • Self-modulating power adjusts to flow and temperature
  • Touch controls set temperature from 86°F to 131°F in 1°F steps
  • Water-electricity separation helps limit scale buildup
Cons
  • Needs a dedicated 240V circuit, often with heavy-gauge wiring
  • Output limits it to one or two points of use at once
  • Ground water in cold climates may not reach high temperatures at full flow
  • No tank means no hot water during a power outage

IdealHouse 240V Electric Tankless Water Heater prices at every store

  • Lowe'sNew

    Availability unknown

    $173.86Free shippingChecked 35 min ago
    Visit Lowe's

IdealHouse 240V Electric Tankless Water Heater price history

$173.86$173.86
Nov 2Nov 13

Lowest price we've seen: $173.86 on Nov 2 at Lowe's. Tracked across 1 store since Nov 2.

From Lowe's

  • Ultra-compact dimensions of 13.8" x 11.4" x 3.5" free up 90% more space than bulky tanks
  • Heavy-duty iron construction with water-electricity separation technology prevents scale buildup
  • 18kW heating system at 240V provides a continuous, unlimited supply of hot water instantly
  • Suitable for 1–2 simultaneous points of use
  • Self-modulating technology adjusts power input to water flow and temperature, reducing heating costs by up to 60%
  • LED digital display and touch sensor set temperature from 86°F to 131°F in 1°F increments
Fit
Requires 2 x 40-Amp double-pole circuit breaker and 240V electrical connection
Sizing
Requires 2 x 40-Amp double-pole circuit breaker and 240V electrical connection
Guarantee
5-Year Lowe's Protection Plan available
Returns
FREE Returns — return it in store or ship it back for free; eligibility rules apply
Shipping
FREE Standard Shipping; shipping available Tue, Nov 17

About the IdealHouse 240V Electric Tankless Water Heater

This is an 18kW, 240V electric tankless water heater that heats water on demand. It gives a continuous supply of hot water without a storage tank. It is designed for point-of-use installation, such as under a sink, in a shower, or in a kitchen, and it can serve 1 to 2 points of use at the same time.

It has a compact body and a heavy-duty iron construction. Water-electricity separation technology prevents scale buildup. Self-modulating technology adjusts power input to the water flow and temperature, which reduces heating costs by up to 60%.

An LED digital display and touch sensor set the temperature from 86°F to 131°F in 1°F increments. The unit is gray.

Power
18 kW, 240V electric
Dimensions
13.8" x 11.4" x 3.5"
Temperature range
86°F to 131°F, adjustable in 1°F increments
Controls
LED digital display and touch sensor
Construction
Heavy-duty iron
Capacity
1 to 2 simultaneous points of use
Electrical requirements
2 x 40-Amp double-pole circuit breaker and 240V electrical connection
Installation
Point-of-use, such as under a sink, shower, or kitchen
Color
Gray

Specifications

Power Source
Electric
CA Residents: Prop 65 Warning(s)
false

Questions and answers

How many fixtures can it run at once?
It is rated for one or two simultaneous points of use. Running a shower and a sink together is fine; adding more fixtures at the same time will split the heat.
What wiring does it need?
It runs on 240V and draws high current at 18kW, so it needs a dedicated circuit sized by an electrician. It is not a plug-in unit.
How hot can the water get?
The touch control sets the target from 86°F to 131°F in 1°F increments. Actual outlet temperature depends on incoming water temperature and flow rate.
Will it work in a cold climate?
It can, but very cold incoming water limits the temperature rise at high flow. In cold regions, run one fixture at a time or lower the flow for hotter water.
Does it replace a whole-house tank?
Only for small demand. At 18kW it suits a single bathroom, kitchen or cabin. A whole house with several bathrooms usually needs a larger whole-home tankless unit.
What is included?
The heater unit itself with its mounting hardware and touch display. Wiring, breakers and plumbing fittings are not included and are supplied by the installer.
Where is the IdealHouse 240V Electric Tankless Water Heater cheapest?
At Lowe's, for $173.86, as of our latest check.

Stores we've priced the IdealHouse 240V Electric Tankless Water Heater at

  • Lowe's deals and prices

More from IDEALHOUSE

  • I
    IDEALHOUSE Twin Daybed with Trundle
    IDEALHOUSE Twin Daybed with Trundle
  • I
    IdealHouse 7-Drawer Vanity Desk with Lights and Mirror Makeup Vanity Set with Power Outlets, USB, 3 Color LED Modes, Dimmable, Hair Dryer Holder
    IdealHouse 7-Drawer Vanity Desk with Lights and Mirror Makeup Vanity Set with Power Outlets, USB, 3 Color LED Modes, Dimmable, Hair Dryer Holder
  • I
    IdealHouse 10 in. 15 Amp Table Saw with Stand
    IdealHouse 10 in. 15 Amp Table Saw with Stand
I
IdealHouse 1800W 10 in. 15A Table Saw with Portable Stand
IdealHouse 1800W 10 in. 15A Table Saw with Portable Stand
  • I
    IdealHouse 1800W 10 in. Table Saw with Stand
    IdealHouse 1800W 10 in. Table Saw with Stand
  • I
    IdealHouse Black 8-Drawer Dresser with LED Lights and Power Outlet
    IdealHouse Black 8-Drawer Dresser with LED Lights and Power Outlet
  • I
    IdealHouse Modern 4-Drawer Dresser 28 Inch with LED Lights and Charging Station
    IdealHouse Modern 4-Drawer Dresser 28 Inch with LED Lights and Charging Station
  • I
    IdealHouse 5.3 QT Tilt-Head Stand Mixer
    IdealHouse 5.3 QT Tilt-Head Stand Mixer
  • All IDEALHOUSE deals and products →

    More tankless water heaters

    • M
      Mizudo 18 kW Electric Tankless Water Heater
      Mizudo 18 kW Electric Tankless Water Heater
    • E
      Eccotemp SHiE-27 SmartHome 27kW Electric Tankless Water Heater
      Eccotemp SHiE-27 SmartHome 27kW Electric Tankless Water Heater
    • G
      GE27DNHPDG
      GE27DNHPDG
    • G
      GE 27.0kW Self-Modulating Whole-Home Tankless Electric Water Heater
      GE 27.0kW Self-Modulating Whole-Home Tankless Electric Water Heater
    • T
      ThermoMate 27kW 240 Volt Electric Tankless Water Heater
      ThermoMate 27kW 240 Volt Electric Tankless Water Heater
    • F
      FUFU&GAGA 18 kW Electric Tankless Water Heater
      FUFU&GAGA 18 kW Electric Tankless Water Heater
    • E
      ECOTOUCH 27kW Tankless Water Heater Electric
      ECOTOUCH 27kW Tankless Water Heater Electric
    • T
      ThermoMate Tankless Water Heater Electric 27kW 208~240 Volt On Demand Instant Endless Hot Water Heater
      ThermoMate Tankless Water Heater Electric 27kW 208~240 Volt On Demand Instant Endless Hot Water Heater