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AO Smith ATI-540H-P 199,000 BTU ATI-540H Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP) | SupplyHouse.com
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  • Heats water consistently
  • Easy to install
  • Saves space and propane
  • Quieter operation
  • Quick heating
See all reviews

AO Smith ATI-540H-P 199,000 BTU ATI-540H Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP) | SupplyHouse.com

Users say:
This product has been praised for its performance, ease of installation, and quietness. It is also noted to be a great alternative to larger tanks, as it heats quickly and takes outside air for combustion. Customers have also reported that it is a great value for the price.
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AO Smith ATI-540H-P 199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP) is a high-performance water heater tha…
AO Smith ATI-540H-P 199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP) is a high-performance water heater that provides hot water on demand. It has an ultra-low NOx emission and can be installed indoors.
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SupplyHouse.com
$1394.30
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B
Build
Ad
$1644.32
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Walmart
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$1644.4
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Review summary

AI-generated content
This product has been praised for its performance, ease of installation, and quietness. It is also noted to be a great alternative to larger tanks, as it heats quickly and takes outside air for combustion. Customers have also reported that it is a great value for the price.

Pros

  • Heats water consistently
  • Easy to install
  • Saves space and propane
  • Quieter operation
  • Quick heating

Cons

  • Recurring error code issue
Read original reviews

Description

AO Smith ATI-540H-P 199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP) is a high-performance water heater that provides hot water on demand. It has an ultra-low NOx emission and can be installed indoors.

Buying Options

StoreTotal Price
SSupplyHouse.com
$1394.30
BBuild
Ad
$1644.32
Walmart
Ad
$1644.4
VVentingDirect
$1108.8
eComfort
$1269
VVentingPipe
$1644.4
See more buying options

Specifications

Energy Efficiency0.95
Dimensions11-1/4"
Venting TypeDirect Vent
Max Flow (Gpm)10
Voltage120v
Btu (Min)13000
Gas Input13000-199000 Btu/h
Width (Inches)17-3/4"
Btu (Max)199900
Height (Inches)23.625"
Gas Connection3/4"
Flow Rate At 70f Temp Rise (Gpm)5.4
Weight (Lbs)59 Lbs
Flow Rate At 60f Temp Rise (Gpm)6.3
Flow Rate At 50f Temp Rise (Gpm)7.5
Inlet Gas Pressure8.0"-14.0"w.c.
Flow Rate At 40f Temp Rise (Gpm)9.5
TypeCondensing
Installation TypeIndoor Only
Fuel TypePropane
ApplicationResidential
Product TypeTankless Heater