NHW700-199AE – Non-Condensing Tankless Water Heater – Outdoor, 199,000 BTU
Navien

NHW700-199AE – Non-Condensing Tankless Water Heater – Outdoor, 199,000 BTU

Model NHW700-199AETankless Water Heaters

$529.90 Sales tax calculated at checkout
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  • Free tracked delivery3–5 business days after dispatch to most US addresses; 5–8 to Alaska, Hawaii and US territories.
  • 30-day returnsUnused, in its packaging. Faulty or damaged on arrival, we pay the return; a change of mind, you do.
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Overview

Navien NHW700-199AE – Non-Condensing Tankless Water Heater – Outdoor, 199,000 BTU

The Navien NHW700-199AE is a high-capacity, non-condensing tankless water heater built for outdoor residential applications. Designed to operate efficiently in a variety of climates, it delivers up to 199,900 BTU per hour and supports a maximum flow rate of 9.5 gallons per minute at a 35°F rise. The unit is equipped with Navien's patented NaviTech™ stainless steel heat exchanger and a stainless steel Low NOx burner for durability and cleaner combustion. With a Uniform Energy Factor (UEF) of 0.81, the NHW700-199AE offers energy-efficient performance in a compact footprint.

This model comes with a built-in recirculation pump and buffer tank, helping to reduce hot water wait times and eliminate cold water bursts during demand cycles. It includes a built-in control panel for temperature adjustment and diagnostics, and is factory-configured for natural gas with an optional field conversion kit for propane. Safety features such as a flame rod, APS, high-limit temperature switch, and vent installation detector are integrated for peace of mind. The unit installs outdoors with NaviVent™ 3" x 5" concentric venting and requires no additional venting accessories.

Outdoor installation design 199,900 BTU/h input UEF rating of 0.81 9.5 GPM at 35°F rise, 7.4 GPM at 45°F rise Patented NaviTech™ stainless steel heat exchanger Stainless steel Low NOx burner (20 ppm) Built-in recirculation pump and buffer tank Electronic ignition system Built-in control panel for temperature setting and diagnostics Factory set for natural gas, field convertible to propane Vents using NaviVent™ concentric 3" x 5" system Safety features: flame rod, air pressure sensor, vent installation detector, water temp high limit switch, power surge fuse Applications

Residential outdoor water heating Homes needing high hot water output with minimal indoor space use Systems requiring reduced hot water wait time Installations in areas with natural gas or propane fuel availability Regions requiring Low NOx emissions compliance Exclusive NaviTech stainless steel heat exchanger

The NWH-A series non-condensing tankless water heaters feature a stainless steel heat exchanger to deliver unmatched durability and performance.

ComfortFlow built-in recirculation system

The patented ComfortFlow system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater.

Allows you to adjust water temperature, operation status and troubleshooting.

Built-in Air Pressure Sensor (APS)

Monitors vent system for blockage, automatically compensates for range of vent lengths, helps maintain proper air/gas ratio during operation, and ensures consistent hot water output during changing conditions.

Patented NaviTech stainless steel gas burner

Designed and manufactured by Navien to burn gas at higher efficiency than other system on the market.

Recirculation control built into circuit board

Ensures proper system setup, and reduces the need for additional components, saving installation time and cost.

Built-in Water Adjustment Valve (WAV) & Mixing Valve

Control flow to maintain setpoint and stabilize water temperature during flow changes.

Specification

Brand Navien
Model NHW700-199AE
Type Tankless Water Heater
Flow 9.5 GPM
Input 199,000 MBH
Power source Propane
Condition New

Appliances Corner Store is an independent retailer. This product is made by Navien; we are not affiliated with Navien and all brand names and model numbers are used to identify the product we are selling.

Good to know

When will it arrive?

Orders placed before 2:00 pm ET on a business day ship the same day from Orlando; Saturday orders before 1:00 pm ET go out that afternoon. After that, it ships the next business day.

Delivery takes 3–5 business days after dispatch to most US addresses, and 5–8 to Alaska, Hawaii and US territories.

Can I return it?

Yes — tell us within 30 days of delivery and send it back unused, in its packaging, for a full refund. If it is faulty, damaged in transit or not as described, we pay the return; if you have changed your mind, the return shipping is yours, and we quote it before anything is booked.

Read the full returns policy

How does Bundle & Save work?

Every item marked Bundle & Save counts (single items under $550), and you can mix them: 2 items save 5%, 3 save 10%, 5 or more save 15%. The saving is taken off automatically in the cart — there is no code to enter.

Do I need to be in for the delivery?

Orders over $150 ship with signature on delivery, so a missing parcel can be claimed. Your tracking number is emailed the moment the label prints.

NHW700-199AE – Non-Condensing Tankless Water Heater – Outdoor, 199,000 BTU $529.90

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