My Account My Account Icon Rebate Rebate Icon Update Update Icon Top Arrow Top Arrow Down Arrow Down Arrow Article Article
Summer Sales Event - Up to 65% Off Select Product Sitewide No Interest Financing Up to 24 Months
Rheem Products

Rheem RTG84XN

RTG84XN Outdoor Whole House Tankless Water Heater, 8.4 GPM Natural Gas
★★★★★ ★★★★★
(5)

RTG84XN Outdoor Whole House Tankless Water Heater, 8.4 GPM Natural Gas

Temporarily Out of Stock

The product is not available for shipping from our warehouse. We have contacted the manufacturer and expect shipment to our warehouse within 48-72 Hours. It will then take a few more days to be delivered to you, depending on the way you requested it to be shipped.

Quick Specs: View More

  • Energy Star: Yes

Enter zip code for delivery ETA and promotions:

go
Discontinued No longer available.

This item has been replaced by:

Includes Outdoor Natural Gas Tankless Water Heater for 2-3 Bathroom Homes Available at AppliancesConnection

Features:

  • 6.7 GPM at a 45 degrees F temperature rise (up to 8.4 GPM at 35 degrees F)
  • Exclusive! Guardian SBT sensing burner technology
  • Next generation burner technology
  • Exclusive! Guardian OFW overheat film wrap
  • Digital display on thermostat shows temperature setting and maintenance/error codes

Specifications:

  • Depth:  9.875"
  • Direct Vent:  No
  • Duct Size:  Ductless
  • Energy Star:  Yes
  • Gas Connection:  0.75
  • Hardwired:  Yes
  • Height:  25.625"
  • Ignition Type:  Electronic
  • Indoor Installation:  No
  • Low Lead Compliant:  Yes
  • Manifolding:  Yes
  • Maximum Flow Rate:  8.4
  • Maximum Gas Input:  180000
  • Maximum Temperature:  140
  • Minimum Flow Rate:  0.26
  • Minimum Gas Input:  11000
  • Outdoor Installation:  Yes
  • Plug In:  Yes
  • Water Connection:  0.75
  • Width:  13.875"

Be the first to ask a question

Ask A Question

Overall Rating ☆☆☆☆☆ ★★★★★ 4.4
Ease of Use 4.4
Meet Expectations 4.4
Bang for Your Buck 4.4
Average rating out of 5 reviews
Sort:

Share your thoughts with other customers:


Write A Review

Customer Reviews

Good features

By  from Myrtle Beach, SC, United States
Overall Rating: ☆☆☆☆☆ ★★★★★ 3

I bought this two months ago and I'm having nothing but problems.


Written by a customer while visiting http://www.rheem.com/contact.aspx

Tankless!!

By  from Fresno, CA, United States
Overall Rating: ☆☆☆☆☆ ★★★★★ 4

Recommended Product:

It takes a while for the water to get hot but once it is hot you do not run out of the awesome hot water.


Written by a customer while visiting http://www.rheem.com/contact.aspx

Easy installation and great tech support

By  from San Antonio, TX, United States
Overall Rating: ☆☆☆☆☆ ★★★★★ 5

Recommended Product:

I've just had this a few days, but we already love it. I installed it myself in place of a tank-type gas heater. I purchased the valve package and vent which made for a relatively easy job. It wouldn't start up after completion, but after consulting tech support (great guys!) I discovered that the house had been plumbed with the hot and cold water pipes switched in position. With a quick change to the pex pipes it immediately kicked off and away we went. Wait time for hot water is about the same as the old tank type. I can imagine how impressive the savings will be because 99+% of the time, the unit is off.


Written by a customer while visiting http://www.rheem.com/contact.aspx

Still running perfectly after 2 years..

By  from North Carolina
Overall Rating: ☆☆☆☆☆ ★★★★★ 5

Recommended Product:

I self-installed this unit 2 years ago to replace a 40 gallon electric tank heater, and I couldn't be happier! My natural gas cost is significantly less than what I previously paid to heat the same amount of water, and I never worry about running out of hot water. I installed 3 Remote Controls for added convenience. The unit runs quietly and smoothly, firing every time I need it with no problems whatsoever. My city water supply is soft and clean, so it wasn't surprising that my recent vinegar flushing revealed no evidence of lime or scale deposits. My decision to self-install was based on minimizing initial cost, thus hoping long-term cost payback through operational savings might be realized. Based on the high cost of professional installation in my area, payback through savings would likely never be possible, as their labor rates seemed to over-double while quoting on tankless. My cost of installation was still quite expensive after buying the necessary vent piping, tubing, fittings, etc., but now that it's done, replacing the unit at its end-of-life will be easy and even more cost effective. For anyone considering self-installing one of these, I strongly recommend reading the manual multiple times and knowing the relevant local codes in your area. Plan ahead, don't rush, and sweat all the details, especially those concerning gas supply, water supply, and venting. Only use recommended venting materials! If you need to, sub out those portions of the work you may lack competency or tooling to do. It's much wiser to pay an experienced professional an hour or two labor to make your gas line connections, than to end up with a deadly gas leak. I consulted with a local licensed plumber and city inspector to make sure my installation met all requirements and was safe. Last, do a neat and clean job. If you follow all necessary requirements, you should end up with a system that operates perfectly. I highly recommend this unit.


Written by a customer while visiting http://www.rheem.com/contact.aspx

Tankless Water Heater

By  from Spring, TX, United States
Overall Rating: ☆☆☆☆☆ ★★★★★ 5

Recommended Product:

Purchased just a couple of weeks ago. Performance has been flawless and installation was easy according to the plumber. Water temperature / function panel was extended to a location very easy to see and monitor each day.


Written by a customer while visiting http://www.rheem.com/contact.aspx
1-5 of 5

    Model

  • Brand:Rheem
  • SKU:RTG84XN
  • UPC:020352591438
  • Stock Id:231233
  • Product Number:RTG84XN

    Appearance

  • Fuel Type:Natural Gas

    Dimensions

  • Width:13.875"
  • Depth:9.875"
  • Height:25.625"

    Technical Details

  • Energy Star:Yes
  • Ignition Type:Electronic
  • Duct Size:Ductless
  • Direct Vent:No
  • Maximum Flow Rate:8.4
  • Gas Connection:0.75
  • Maximum Gas Input:180000
  • Maximum Temperature:140
  • Minimum Flow Rate:0.26
  • Minimum Gas Input:11000
  • Hardwired:Yes
  • Weight:57.00 lbs