StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • 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.
TermsPrivacy
Deal.ai › MRCOOL › Water Heaters
MRCOOL
MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU

MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU

Best price now

$1,699.00at NeweggChecked Nov 9

Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Newegg

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

  • Last seen at $1,699.00 at Newegg on Nov 9.

Our take on the MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU

The MRCOOL MHWH199NCNU is a natural gas tankless water heater rated at 199,000 BTU, the highest output class in the residential market. It heats water on demand, so there is no tank to run out and it frees up floor space. It needs a 120V outlet for its controls and blower, plus proper gas supply and venting. Against smaller tankless units it delivers more hot water at once, which suits larger households running several fixtures together; against tank models it costs more upfront and depends on gas flow and venting being right.

Best forLarge households with several bathroomsHomes replacing a tank heater for spaceCold-climate homes needing high outputBuyers wanting on-demand hot water
Pros
  • High 199,000 BTU output handles multiple fixtures at once
  • Tankless design frees floor space and never runs out of stored hot water
  • Modulating burner matches output to demand for efficiency
  • Runs on standard natural gas and a 120V circuit
  • Compact wall-mounted unit
Cons
  • High output needs adequate gas line size and venting, which adds install cost
  • Hot water can lag briefly at the tap until the burner ramps up
  • Annual descaling needed in hard-water areas
  • Requires professional gas and venting installation

MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU prices at every store

  • NeweggNew

    In stock

    $1,699.00Free shippingChecked Nov 9
    Visit Newegg

Store links may earn us a commission. Price via Klarna.

MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU price history

Lowest price we've seen: $1,699.00 on Nov 10 at Newegg. Tracked across 1 store since Nov 10.

Specifications

Mounting
YesSource
Type
Water Heater, Tankless Water HeaterSource
Voltage (V)
120.0Source

Questions and answers

How much hot water can it deliver?
At 199,000 BTU it is built to run several fixtures at once, such as two showers plus a sink. Actual flow depends on incoming water temperature and the temperature rise you set.
What does installation require?
A natural gas line sized for its full input, approved stainless or PVC venting depending on the model's vent option, and a 120V outlet for the controls. A licensed gas installer should handle it.
Does it need maintenance?
Yes. In hard-water areas the heat exchanger should be descaled about once a year to keep efficiency and flow up. A sediment filter on the cold inlet helps.
Is it better than a tank water heater?
It never runs out of hot water and saves floor space, but it costs more to install and needs venting and gas capacity. A tank is simpler and cheaper upfront but recovers more slowly.
Can it be used with propane?
This model is set up for natural gas. Propane use would require a conversion kit and is not the intended configuration.
Where is the MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU cheapest?
At Newegg, for $1,699.00, as of our latest check.

Stores we've priced the MRCOOL Natural Gas Tankless Water Heater MHWH199NCNU at

  • Newegg deals and prices

More from MRCOOL

  • M
    MRCOOL DIY 4th Gen 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump
    MRCOOL DIY 4th Gen 18,000 BTU 1.5 Ton Ductless Mini Split Air Conditioner and Heat Pump
  • M
    MRCOOL DIY 12K BTU 23.5 SEER2 5th Gen Ductless Mini Split Heat Pump System - 115V
    MRCOOL DIY 12K BTU 23.5 SEER2 5th Gen Ductless Mini Split Heat Pump System - 115V
  • M
    MRCOOL DIY 5th Gen 2-Zone 18,000 BTU 24 SEER2 (9K + 9K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes
    MRCOOL DIY 5th Gen 2-Zone 18,000 BTU 24 SEER2 (9K + 9K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes
  • M
    MRCOOL DIY 36K BTU 18 SEER2 5th Gen Ductless Mini Split Heat Pump System - 230V
    MRCOOL DIY 36K BTU 18 SEER2 5th Gen Ductless Mini Split Heat Pump System - 230V
  • M
    MRCOOL DIY 18K BTU 22.5 SEER2 5th Gen Ductless Mini Split Heat Pump System - 230V
    MRCOOL DIY 18K BTU 22.5 SEER2 5th Gen Ductless Mini Split Heat Pump System - 230V
  • M
    MRCOOL DIY 9K BTU 23.6 SEER2 5th Gen Ductless Mini Split Heat Pump System - 115V
    MRCOOL DIY 9K BTU 23.6 SEER2 5th Gen Ductless Mini Split Heat Pump System - 115V
  • M
    MRCOOL DIY 18K Hyper Heat Mini Split System – 5th Gen, -22°F Heating, 21.2 SEER2, Pre-Charged DIY Line Set
    MRCOOL DIY 18K Hyper Heat Mini Split System – 5th Gen, -22°F Heating, 21.2 SEER2, Pre-Charged DIY Line Set
  • M
    MRCOOL DIY 5th Gen 18000 BTU 230V Ductless Mini Split Heat Pump AC
    MRCOOL DIY 5th Gen 18000 BTU 230V Ductless Mini Split Heat Pump AC
    • All MRCOOL deals and products →