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Deal.ai › Takagi
Takagi
Takagi TK-540P-NIH

Takagi TK-540P-NIH

Best price now

$1,385.00at PlumbersCrib.comChecked 19 h ago

17% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $1,385.00 at PlumbersCrib.com on Nov 9.
  • Checked at 4 stores.

Our take on the Takagi TK-540P-NIH

The Takagi TK-540P-NIH is a natural gas tankless water heater rated at 199,000 BTU, with a built-in recirculation pump for faster hot water at the tap. It uses electronic ignition with no standing pilot, direct venting, and freeze protection, and it is designed for indoor residential installation. The 199,000 BTU rating puts it among the higher-capacity residential units, so it can serve multiple fixtures at once where a smaller unit would struggle. Its main trade-offs are the natural gas requirement, a 3/4-inch connection, and the need for proper venting and gas pressure in the 4 to 10.5 inch WC range.

Best forWhole-home hot water for larger householdsReplacing a tank heater where space is tightHomeowners who want quicker hot water at the tapIndoor installations with direct venting
Pros
  • High 199,000 BTU output handles several fixtures at once
  • Built-in recirculation pump shortens the wait for hot water
  • No standing pilot light; electronic ignition saves gas
  • Freeze protection and overheat cut-off built in
  • Compact wall-hung footprint frees floor space
Cons
  • Requires natural gas at 4 to 10.5 inch WC pressure
  • Needs a 120V AC outlet and proper direct venting
  • Recirculation pump adds install complexity and maintenance
  • Not suitable for outdoor installation

Takagi TK-540P-NIH prices at every store

  • PlumbersCrib.comNew

    In stock

    $1,385.00Free shippingChecked 19 h ago
    Visit PlumbersCrib.com
  • AF SupplyNew

    In stock

    $1,658.80+ $450.00 shippingChecked 19 h ago
    Visit AF Supply
  • Allied Plumbing & Fire SupplyNew

    Availability unknown

    $1,595.00+ $26.80 shippingChecked 19 h ago
    Visit Allied Plumbing & Fire Supply
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,795.00Free shippingChecked 19 h ago
    Visit Amazon

Takagi TK-540P-NIH price history

Lowest price we've seen: $1,385.00 on Nov 10 at PlumbersCrib.com. Tracked across 4 stores since Nov 10.

What reviewers say

Owner feedback on Takagi tankless units is generally positive on hot water capacity and reliability, with recurring comments about installation demands and cold-water performance in winter.

What people mention
  • Hot water outputPraisedOwners say it keeps up with multiple showers and appliances running together.
  • InstallationMixedBuyers report the venting and gas pressure requirements make professional installation worthwhile.
  • Winter performanceMixedSome note that very cold incoming water reduces usable hot water flow.
  • BuildPraisedOwners describe the unit as solid and compact on the wall.
  • Recirculation pumpMixedThe built-in pump speeds hot water delivery but adds a part that can need service.

Specifications

Energy Efficiency
Ultra Low-Nox
Fuel Type
Natural Gas
Product Type
Tankless Water Heater
System Type
Tankless Water Heater
Type Features
Instant heating
Power Source
AC
Power Voltage
120V

Questions and answers

Is this unit big enough for a whole house?
At 199,000 BTU it is one of the larger residential tankless units and can typically run several fixtures at once. Very large homes with many simultaneous users may still need more than one unit.
Does it need electricity to run?
Yes. It uses a 120V AC power source for electronic ignition and controls, so a nearby outlet is required.
Can it be installed outdoors?
No. It is designed for indoor installation with direct venting.
What gas pressure does it require?
It needs natural gas supplied at 4 to 10.5 inches water column. A installer should verify pressure before commissioning.
Does it include a recirculation pump?
Yes, a pump is included, which helps deliver hot water to fixtures faster than a non-recirculating unit.
Will it work with a standard 3/4-inch water line?
Yes. The water connections are 3/4-inch NPT, which matches common residential plumbing.
Where is the Takagi TK-540P-NIH cheapest?
At PlumbersCrib.com, for $1,385.00, 17% under what the other stores charge, as of our latest check.
Where can I buy the Takagi TK-540P-NIH?
4 stores we checked sell it, including PlumbersCrib.com, Allied Plumbing & Fire Supply, AF Supply, Amazon.

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Stores we've priced the Takagi TK-540P-NIH at

  • AF Supply deals and prices

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Heating Method
Tankless
Heating Capacity
199,000 BTU
Heating Element
Gas burner
Ignition Type
No pilot light, Electronic ignition
Included Accessories
Pump
Application
Residential
Safety Features
Overheat cut-off fuse, Freeze protection
Installation Type
Indoor
Vent Type
Direct Vent
Connection Size
3/4 in NPT (water connection)
Installation Location
Indoor
Included Components
Pump
Installation Requirements
4 - 10.5 WC pressure (Natural Gas)
Size
Compact
Height
16 in
Width
22 in
Depth
33 in