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Match the color in your state to determine which whole house Tankless water heater is the correct model for your area. Model number is on the right side of the map. 

Baths, hand washing & showers are comfortable between 97 & 105 degrees. Keep in mind the average hand & shower faucets produce 1 to 1.5 gallons per minute. The average home uses 1-3 gallons per minute. It's extremely rare for a family to use 3 gallons of water per minute, in most cases it's alot less. GPM stands for gallons per minute. DP stands for double pole breakers. Please check your power panel box on your home to see what amperage it will support before ordering. If your panel box will not support the amperage of the water heater it will not work, a restocking fee will be charged.

Free Shipping & Pay NO SALES TAX on Your Purchase!*
*All states except Arizona

Whole House Models Plus 14 Plus 16

   Ultimate          18

Ultimate 21 Ultimate 24 Ultimate 27
Max Gallons Per Minute 4 4 7 7 7 7
Max Temperature @ 1 or 2 G.P.M. 140 140 140 140 140 140
Max Temp.@ 3 G.P.M. 130 125F 125F 125F 125F 125F
Max temperature  130 140F 140F 140F 140F 140F
iHeat-Warranty Parts/Elements/Exchangers  1/3/Life 1/3/Life 1/3/Life  1/3/Life 1/3/Life 1/3/Life
Atmor- Warranty;
Parts/Leak Proof
2/7 2/7 2/7 2/7 2/7 2/7
Digital Temp. Readout Yes  Yes  Yes  Yes  Yes  Yes
Energy Efficiency Rating 99% 99% 99% 99% 99% 99%
Inlet/Outlet Pipe Size 1/2" 1/2" 3/4" 3/4" 3/4" 3/4"
Atmor-Wiring Required 4-2 ---------- 2 x 8   ---------- 3 x 8  3 x 8
iHeat Wiring Required 6-2 6-2 2 x 8-2 2 x 8-2 2 x 8-2 2 x 8-2
Model Specs Varies Info Info Info Info Info
Breaker(s) Required-Atmor 70 ---------- 3X30 DP ---------- 3x40 DP 3x40DP
Breaker(s) Required-iHeat 60  70  2x40 DP  3x40 DP  3x40 DP  3x40 DP
Atmor-Size of Unit 11"x9"  --------- 17" x 13" --------- 17" x13" 17" x 13"
iHeat--Size of Unit 11" x 7" 12"x 7.7"  13"x13.5"  16"x17"  16"x17"  16"x17"
Weight 5# 8# 16# 21# 21# 21#
Model Highlights Varies  Info Info Info Info Info
Free  Ground Shipping
Contiguous United States
 
Yes Yes Yes  Yes  Yes  Yes
Atmor Tankless Heaters Include Valve Kit and 2 Year
Scale Killer Water
Conditioner

$270.
Buy Now

----------- $390.
Buy Now
---------- $425.
Buy Now
$480.
Buy Now
 iHeat Water (Heater Only) $270.
Buy Now
 $270.
Buy Now
$390.
Buy Now
$450.
Buy Now
$480.
Buy Now
$480.
Buy Now

Free Shipping & Pay NO SALES TAX on Your Purchase!*
*All states except Arizona

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Gas, Pool, Portable, Shower, Sink, Spa

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You wouldn't let your car run idle wasting gas when you aren't driving it, so why let your water heater waste energy when you aren't using hot water.


With our tankless water heaters you only pay for hot water when you turn on your hot water faucet. By heating water only as it is needed tankless water heaters eliminates the need for bulky water heaters that heat water continuously. This can reduce hot water costs up to 60% over conventional water heaters. At rest, our heaters use no power at all.

Tankless water heaters are ideal for a wide range of applications. One Tankless water heater can supply the hot water needs of homes, apartments and commercial buildings. In some applications, energy saving can pay back unit cost in less than one year.

Installation is quick and easy. Our compact size allows installation almost anywhere. Atmor and iheat heaters are without a doubt the Tankless Water Heater for the 21st century. Have questions, click on FAQ

                                                                       USES
House -Apartments - Condominiums - Beauty Salons - Hospitals - Boats - Laboratories - Campers - Offices - Schools - Cottages - Restaurants - Barber Shops - Warehouses. Anywhere hot water is needed.


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