Skip to content

Tankless Water Heaters

Tankless hot water heaters are high-efficiency. If you get your hot water from a boiler/tank right now, you may save hundreds of dollars per month, depending on your usage. The reason you will save so much money is that the tankless heater only uses energy when the water is flowing. Systems with tanks run constantly to maintain the water temperature of the entire volume of water in the tank at whatever temperature you set. What a waste!Buy tankless hot water heaters on sale

 


Searching for the right tankless water heater to buy and need assistance? Give us a quick call at 305-791-1101.

Use our powerful Tankless Feature Search Wizard here. –>

GadgetsGo.com is an Authorized Dealer for most major manufacturers including Drakken (a.k.a. American Heat, iHeat), Ecosmart, Chronomite, Eemax, Eccotemp, Rinnai, Bradford White, Noritz, Titan, Stiebel-Eltron, Marey, Quietside, and Bosch.

(Tankless water heaters are also referred to in different terms, depending on the manufacturer: inline water heaters, instant heat water heater, flow through water heater, flow through water heaters, ondemand water heater, tankless boiler, electric water heaters, electronic water heater, electrical water heaters, gas water heaters. You get the idea...)

  • Original price $30.24 - Original price $35.19
    Original price
    $30.24 - $35.19
    $30.24 - $35.19
    Current price $30.24

    Flow sensor assembly part for EcoSmart ECO 8, ECO 11 (FSA NFSML)

    ECOSMART US LLC

    Flow sensor assembly part for EcoSmart ECO 8, ECO 11

    Original price $30.24 - Original price $35.19
    Original price
    $30.24 - $35.19
    $30.24 - $35.19
    Current price $30.24
  • Original price $497.95 - Original price $497.95
    Original price
    $497.95
    $497.95 - $497.95
    Current price $497.95

    Chronomite E-series Instant-Temp Electric Water Heater

    Chronomite Laboratories, Inc.

    The Instant-Temp Instant Hot Water Heater is Chronomite's top of the line model. This instant, point-of-use water heater features easy-to-access, e...

    View full details
    Original price $497.95 - Original price $497.95
    Original price
    $497.95
    $497.95 - $497.95
    Current price $497.95
  • Sold out
    Original price $249.00 - Original price $253.95
    Original price
    $249.00 - $253.95
    $249.00 - $253.95
    Current price $249.00

    Eccotemp L7 Portable Outdoor Tankless Water Heater

    Eccotemp

    Presenting the L7 Portable Tankless Water Heater, the latest model from the Eccotemp product line. With a new stylish look and a higher capacity ...

    View full details
    Original price $249.00 - Original price $253.95
    Original price
    $249.00 - $253.95
    $249.00 - $253.95
    Current price $249.00
    Sold out
  • Original price $69.95 - Original price $74.90
    Original price
    $69.95 - $74.90
    $69.95 - $74.90
    Current price $69.95

    HA-P025 Control Board PCB, Eemax HA018240, HA027240, HA036240

    Eemax

    Control Board PCB for Eemax HA027240, HA018240 and HA036240 Eemax tankless water heater technical overview The HA018240 is the medium sized model ...

    View full details
    Original price $69.95 - Original price $74.90
    Original price
    $69.95 - $74.90
    $69.95 - $74.90
    Current price $69.95
  • Original price $3,595.00 - Original price $3,614.95
    Original price
    $3,595.00
    $3,595.00 - $3,614.95
    Current price $3,595.00

    Navien NCB-150E Condensing Combination Water Heater-Boiler

    Navien America

    Current stock level: In stock as of Ship out time: Within 1 business day.Delivery time: 1 to 3 business days to most addresses The NCB-150E is one...

    View full details
    Original price $3,595.00 - Original price $3,614.95
    Original price
    $3,595.00
    $3,595.00 - $3,614.95
    Current price $3,595.00
  • Original price $510.00 - Original price $525.00
    Original price
    $510.00 - $525.00
    $510.00 - $525.00
    Current price $510.00

    EcoSmart Smart SPA 11 Electric Spa Water heater

    ECOSMART US LLC

    EcoSmart Spa Heaters offer improved design, functionality, and user control over traditional spa heaters and provide users with either a supplemen...

    View full details
    Original price $510.00 - Original price $525.00
    Original price
    $510.00 - $525.00
    $510.00 - $525.00
    Current price $510.00
  • Original price $453.39 - Original price $1,693.06
    Original price
    $453.39
    $453.39 - $1,693.06
    Current price $453.39

    Eemax SPEX95T 240V 40 amp LavAdvantage Electric Water Heater

    Eemax

    LavAdvantage SPEX95T: 9.5 kW Thermostatic point of use water heater for hand washing and other low-flow applications that require precise temperat...

    View full details
    Original price $453.39 - Original price $1,693.06
    Original price
    $453.39
    $453.39 - $1,693.06
    Current price $453.39
  • Original price $1,638.00 - Original price $1,638.00
    Original price
    $1,638.00
    $1,638.00 - $1,638.00
    Current price $1,638.00

    State Industries GTS-540H Series Tankless Water Heater Ultra-Low NOx Condensing

    State Water Heaters

    Get an endless supply of hot water from a compact, wall-mounted tankless water heater that will afford you substantial savings in energy costs. Th...

    View full details
    Original price $1,638.00 - Original price $1,638.00
    Original price
    $1,638.00
    $1,638.00 - $1,638.00
    Current price $1,638.00
  • Marey Eco 180 Tankless Electric Water Heater
    Original price $374.99 - Original price $379.94
    Original price
    $374.99 - $379.94
    $374.99 - $379.94
    Current price $374.99

    Marey Eco180 Stainless Steel Tankless Electric Water Heater

    Marey Heater Corp.

    The Marey Eco 180: Read why it is the most durable tankless water heater at an affordable price for the whole house. Uses up to 60% less electric...

    View full details
    Original price $374.99 - Original price $379.94
    Original price
    $374.99 - $379.94
    $374.99 - $379.94
    Current price $374.99
  • Original price $349.41 - Original price $369.36
    Original price
    $349.41 - $369.36
    $349.41 - $369.36
    Current price $349.41

    Eemax SPEX55 240V 23 amp FlowCo Commercial Electric Water Heater

    Eemax

    Eemax SPEX55 Flow Co 5500 Watt 220V-240V water heater for point-of-use applications. Fixed temperature increase. Feature Highlights ≈ Mount it in ...

    View full details
    Original price $349.41 - Original price $369.36
    Original price
    $349.41 - $369.36
    $349.41 - $369.36
    Current price $349.41
  • Original price $69.95 - Original price $74.90
    Original price
    $69.95
    $69.95 - $74.90
    Current price $69.95

    CB QC MEDLRG Control Board, EcoSmart ECO18 ECO27 ECO36 ECO24

    ECOSMART US LLC

    Control Board PCB for EcoSmart ECO 18, ECO 27, ECO 36 and ECO 24 EcoSmart tankless water heater technical overview The ECO 18 is the medium sized ...

    View full details
    Original price $69.95 - Original price $74.90
    Original price
    $69.95
    $69.95 - $74.90
    Current price $69.95
  • Original price $249.00 - Original price $253.95
    Original price
    $249.00 - $253.95
    $249.00 - $253.95
    Current price $249.00

    EcoSmart Eco 8 8kW 240V Electric Tankless Hot Water Heater

    ECOSMART US LLC

    The EcoSmart ECO 8 Electric Tankless Hot Water Heater lets you enjoy endless hot water when you want it, only when you need it. Go Tankless and Sa...

    View full details
    Original price $249.00 - Original price $253.95
    Original price
    $249.00 - $253.95
    $249.00 - $253.95
    Current price $249.00
  • Original price $105.68 - Original price $110.63
    Original price
    $105.68 - $110.63
    $105.68 - $110.63
    Current price $105.68

    Eemax EX1050 Replacement Element for EX55(T) 240V

    Eemax

    Replacement Heating Element for the following 240V electric tankless water heaters:SPEX4208SPEX4208TSP4208EX4208EX4208TSPEX55SPEX55TEX55 EX55T...

    View full details
    Original price $105.68 - Original price $110.63
    Original price
    $105.68 - $110.63
    $105.68 - $110.63
    Current price $105.68
  • Original price $289.00 - Original price $293.95
    Original price
    $289.00 - $293.95
    $289.00 - $293.95
    Current price $289.00

    Rheem RTEX-13 Electric Tankless Water Heater, 13kW-240V

    Rheem

    Rheem RTEX-13 Compact Electric Tankless Water Heating Rheem Electric tankless water heaters have 99% thermal energy efficiency that pay for themsel...

    View full details
    Original price $289.00 - Original price $293.95
    Original price
    $289.00 - $293.95
    $289.00 - $293.95
    Current price $289.00
  • Original price $2,814.70 - Original price $2,834.65
    Original price
    $2,814.70 - $2,834.65
    $2,814.70 - $2,834.65
    Current price $2,814.70

    Navien NCB-180 Condensing Gas Combination Boiler

    Navien America

    Combination Boiler: Where Technology Meets Ecology → Heats water only when needed, making it environmentally sound and cost efficient.→ The ideal s...

    View full details
    Original price $2,814.70 - Original price $2,834.65
    Original price
    $2,814.70 - $2,834.65
    $2,814.70 - $2,834.65
    Current price $2,814.70
  • Original price $229.99 - Original price $234.94
    Original price
    $229.99 - $234.94
    $229.99 - $234.94
    Current price $229.99

    Marey ECO110 220v-240v Electric Tankless Water Heater & LED

    Marey Heater Corp.

    The smartest hot water solution for one to two simultaneous points of hot water use (depending on climate) The new Marey ECO110 offers excellent v...

    View full details
    Original price $229.99 - Original price $234.94
    Original price
    $229.99 - $234.94
    $229.99 - $234.94
    Current price $229.99
  • Original price $613.99 - Original price $1,870.71
    Original price
    $613.99 - $1,870.71
    $613.99 - $1,870.71
    Current price $613.99

    Eemax EX190TC 19 kW 240 V Electric Tankless Water Heater

    Eemax

    EX190TC Series Two 19 kW 240 V thermostatic water heater for residential applications Two heating modules for heating water up to 3 GPM. TC model ...

    View full details
    Original price $613.99 - Original price $1,870.71
    Original price
    $613.99 - $1,870.71
    $613.99 - $1,870.71
    Current price $613.99
  • Original price $58.55 - Original price $63.50
    Original price
    $58.55
    $58.55 - $63.50
    Current price $58.55

    Eemax EX630 Replacement Element for Tankless Heaters

    Eemax

    Replacement Element for EX95, EX95T, EX144TC, EX144T2, EX190T2, EX190TC, SS019240TC, EX280T3, EX280T2T, PA010240T, PA019240TC, PA028240T2T, SS...

    View full details
    Original price $58.55 - Original price $63.50
    Original price
    $58.55
    $58.55 - $63.50
    Current price $58.55
  • Original price $38.95 - Original price $43.90
    Original price
    $38.95
    $38.95 - $43.90
    Current price $38.95

    Eemax HA-P021 Flow Sensor Assembly HA008240 HA011240 HA013240

    Eemax

    Eemax HA-P021 Flow Sensor Assembly for HA008240 HA011240 HA013240, plus Eemax ProSeries, Rheem RTEX series, and more. This item ships with a plug ...

    View full details
    Original price $38.95 - Original price $43.90
    Original price
    $38.95
    $38.95 - $43.90
    Current price $38.95
  • Original price $39.88 - Original price $44.83
    Original price
    $39.88 - $44.83
    $39.88 - $44.83
    Current price $39.88

    Heating element 8 KW @ 240V for EcoSmart Eco 24 HE 80240

    ECOSMART US LLC

    HE 80240 8kW Replacement Heater Element for Tankless Water Heaters 8000 watt at 240 volts heating element for the EcoSmart ECO 24 tankless water h...

    View full details
    Original price $39.88 - Original price $44.83
    Original price
    $39.88 - $44.83
    $39.88 - $44.83
    Current price $39.88
  • Original price $3,344.60 - Original price $3,364.55
    Original price
    $3,344.60 - $3,364.55
    $3,344.60 - $3,364.55
    Current price $3,344.60

    Navien NCB-210 Condensing Gas Combination Boiler

    Navien America

    Combination Boiler: Where Technology Meets Ecology → Heats water only when needed, making it environmentally sound and cost efficient.→ The ideal s...

    View full details
    Original price $3,344.60 - Original price $3,364.55
    Original price
    $3,344.60 - $3,364.55
    $3,344.60 - $3,364.55
    Current price $3,344.60
  • Rinnai V65iN Indoor Natural Gas Tankless Gas Water Heater
    Original price $1,191.00 - Original price $1,210.95
    Original price
    $1,191.00 - $1,210.95
    $1,191.00 - $1,210.95
    Current price $1,191.00

    Rinnai V65iN Indoor Natural Gas Tankless Gas Water Heater

    Rinnai

    Rinnai's V65iN tankless water heater delivers up to 6.6 GPM (gallons per minute) of hot water efficiently, making it perfect for houses that have ...

    View full details
    Original price $1,191.00 - Original price $1,210.95
    Original price
    $1,191.00 - $1,210.95
    $1,191.00 - $1,210.95
    Current price $1,191.00
  • Original price $613.99 - Original price $1,870.71
    Original price
    $613.99 - $1,870.71
    $613.99 - $1,870.71
    Current price $613.99

    Eemax EX144TC 15kW 240V Residential Electric Tankless Water Heater

    Eemax

    EX144TC Series Two 15 kW 240 V thermostatic water heater for residential applications Two heating modules for heating water up to 3 gpm. TC model...

    View full details
    Original price $613.99 - Original price $1,870.71
    Original price
    $613.99 - $1,870.71
    $613.99 - $1,870.71
    Current price $613.99
  • Original price $31.95 - Original price $36.90
    Original price
    $31.95 - $36.90
    $31.95 - $36.90
    Current price $31.95

    HA-P003 Heating element 6kW-208V (8kW-240V) for Eemax HA008240

    Eemax

    Heating element 8kW/240V/33A (6 kW/208V/28.8 amp) for Eemax HA008240, EEM24008 and PR08240 tankless water heaters. Also compatible with other manu...

    View full details
    Original price $31.95 - Original price $36.90
    Original price
    $31.95 - $36.90
    $31.95 - $36.90
    Current price $31.95
  • Original price $629.00 - Original price $629.00
    Original price
    $629.00
    $629.00 - $629.00
    Current price $629.00

    Takagi TK-110U Indoor-Outdoor NG-LP UltraLow NOx Tankless Water Heater

    Takagi

    Modulating, compact, wall-mounted tankless water heater with ultra-low pollution emissions The TK-110U is perfect for apartments, summer cabins, c...

    View full details
    Original price $629.00 - Original price $629.00
    Original price
    $629.00
    $629.00 - $629.00
    Current price $629.00
  • Original price $2,020.20 - Original price $2,040.15
    Original price
    $2,020.20 - $2,040.15
    $2,020.20 - $2,040.15
    Current price $2,020.20

    Navien NR-240A Liquid Propane Condensing Gas Tankless Water Heater

    Navien America

    Updated Model: Navien NPE-240A2 Get an efficient, high performance condensing tankless water heater for limitless hot water. Navien Condensing Tan...

    View full details
    Original price $2,020.20 - Original price $2,040.15
    Original price
    $2,020.20 - $2,040.15
    $2,020.20 - $2,040.15
    Current price $2,020.20
  • Original price $457.75 - Original price $1,693.06
    Original price
    $457.75 - $1,693.06
    $457.75 - $1,693.06
    Current price $457.75

    Eemax SPEX8208T 208V 40 Amp LavAdvantage Sink Electric Water Heater

    Eemax

    LavAdvantage SPEX8208T: 8.3 kW Thermostatic point of use water heater for hand washing and other low-flow applications that require precise temper...

    View full details
    Original price $457.75 - Original price $1,693.06
    Original price
    $457.75 - $1,693.06
    $457.75 - $1,693.06
    Current price $457.75
  • Original price $169.00 - Original price $173.95
    Original price
    $169.00 - $173.95
    $169.00 - $173.95
    Current price $169.00

    Chronomite S-30L 220v-240v 3000W, 13 amps Instant-Flow Tankless

    Chronomite Laboratories, Inc.

    Original S-30L/240 version of Instant-Flow: 220-240v, 13 amps, 3000 watts Note: The 30 in the model number is not the amperage, as with the SR seri...

    View full details
    Original price $169.00 - Original price $173.95
    Original price
    $169.00 - $173.95
    $169.00 - $173.95
    Current price $169.00
  • Original price $589.00 - Original price $593.95
    Original price
    $589.00 - $593.95
    $589.00 - $593.95
    Current price $589.00

    Eccotemp 45HI-NG Indoor Natural Gas Tankless Water Heater

    Eccotemp

    140,000 BTU heater for homes with up to 2 bathrooms The 45HI is the indoor equivalent of the 45H Eccotemp outdoor tankless water heater. It is desi...

    View full details
    Original price $589.00 - Original price $593.95
    Original price
    $589.00 - $593.95
    $589.00 - $593.95
    Current price $589.00
  • Original price $1,332.08 - Original price $1,337.03
    Original price
    $1,332.08 - $1,337.03
    $1,332.08 - $1,337.03
    Current price $1,332.08

    Eemax HomeAdvantage II HA036240 Electric Tankless Water Heater

    Eemax

    #1 US Brand of Electric Tankless Water Heaters MODEL HA036240 Eemax Electric Tankless Water Heater - HomeAdvantage II Eemax Electric tankless wat...

    View full details
    Original price $1,332.08 - Original price $1,337.03
    Original price
    $1,332.08 - $1,337.03
    $1,332.08 - $1,337.03
    Current price $1,332.08
  • Original price $58.95 - Original price $63.90
    Original price
    $58.95 - $63.90
    $58.95 - $63.90
    Current price $58.95

    Eemax EX480 Replacement Element, SP3012 EX3012 SPEX3012 EX3012T

    Eemax

    Replacement Element for SP3012, EX3012, SPEX3012, EX3012T, SPEX3012T Alternate part number: EX480SP   SP3012, EX3012, SPEX3012, EX3012T, ...

    View full details
    Original price $58.95 - Original price $63.90
    Original price
    $58.95 - $63.90
    $58.95 - $63.90
    Current price $58.95
  • Sold out
    Original price $972.00 - Original price $991.95
    Original price
    $972.00 - $991.95
    $972.00 - $991.95
    Current price $972.00

    Rinnai V53eP Outdoor Liquid Propane Tankless Water Heater

    Rinnai

    Rinnai's V53eP exterior mounted tankless water heater delivers up to 5.3 gallons of hot water per minute efficiently, making it perfect for houses...

    View full details
    Original price $972.00 - Original price $991.95
    Original price
    $972.00 - $991.95
    $972.00 - $991.95
    Current price $972.00
    Sold out
  • Original price $749.00 - Original price $749.00
    Original price
    $749.00
    $749.00 - $749.00
    Current price $749.00

    Rheem RTG-84 Series Gas Hot Water Heater

    Rheem

    Rheem RTG is a series of mid-efficiency, ultra low NOx tankless gas water heaters made for continuous hot water in homes with 2-3 bathrooms. ...

    View full details
    Original price $749.00 - Original price $749.00
    Original price
    $749.00
    $749.00 - $749.00
    Current price $749.00
  • Original price $29.90 - Original price $34.85
    Original price
    $29.90 - $34.85
    $29.90 - $34.85
    Current price $29.90

    Eemax HA-P046 Thermistor HA018240 HA024240 HA027240, inlet-outlet set

    Eemax

    HA-P046 thermistor inlet/outlet temp. sensor set for Eemax HA018240, HA024240, HA027240 HomeAdvantage/ProAdvantage MAKE SURE YOUR THERMISTOR TIPS ...

    View full details
    Original price $29.90 - Original price $34.85
    Original price
    $29.90 - $34.85
    $29.90 - $34.85
    Current price $29.90
  • Original price $349.41 - Original price $369.36
    Original price
    $349.41 - $369.36
    $349.41 - $369.36
    Current price $349.41

    Eemax SPEX3512 120V 29 amp FlowCo Commercial Electric Water Heater

    Eemax

    Eemax SPEX3512 Flow Co 3500 Watt 110V-120V water heater for point-of-use applications. Fixed temperature increase. Feature Highlights ≈ Mount it i...

    View full details
    Original price $349.41 - Original price $369.36
    Original price
    $349.41 - $369.36
    $349.41 - $369.36
    Current price $349.41
  • Original price $269.00 - Original price $303.94
    Original price
    $269.00 - $303.94
    $269.00 - $303.94
    Current price $269.00

    Eccotemp L5 Bundle: 2.9 GPM 12V Pump, Strainer, LP Tankless Water Heater

    Eccotemp

    Save money and buy conveniently with this bundle of the Eccotemp L5, 12v pump and strainer. The Eccotemp L5 Portable Tankless Heater is the best-se...

    View full details
    Original price $269.00 - Original price $303.94
    Original price
    $269.00 - $303.94
    $269.00 - $303.94
    Current price $269.00