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Rheem RTGH-95DVLN-3 Tankless Water Heater vs Rheem RTG-84DVLN-3 Tankless Water Heater

Buy the RTGH-95DVLN-3 if you want the most hot water and the lowest gas use: it condenses, reaches 9.5 GPM, and carries a 0.93 UEF. The RTG-84DVLN-3 is the simpler, cheaper-to-install choice when a non-condensing unit fits your venting and 8.4 GPM covers the house. Both share Rheem's Hot-Start Programming and the same 100-140°F range, so the real split is capacity, efficiency and venting.

  • Choose the RTGH-95DVLN-3 if you have a large household with multiple simultaneous showers, want condensing efficiency, or need long PVC vent runs.
  • Choose the RTG-84DVLN-3 if your home needs no more than about 8 GPM, you have a short vent run, and you want a simpler non-condensing install.

Prices

  • Rheem RTGH-95DVLN-3 Tankless Water Heater: $1,201.56 at PlumbersCrib.com (last seen Nov 9)
  • Rheem RTG-84DVLN-3 Tankless Water Heater: $924.41 at Amazon (last seen Nov 8)
  • Difference: the Rheem RTG-84DVLN-3 Tankless Water Heater is $277.15 cheaper than the Rheem RTGH-95DVLN-3 Tankless Water Heater at the latest prices (Nov 8 and Nov 9)
Rheem
Rheem RTGH-95DVLN-3 Super High-Efficiency Condensing Indoor Natural Gas Tankless Water Heater

Rheem RTGH-95DVLN-3 Tankless Water Heater

Rheem RTGH-95DVLN-3 Super High-Efficiency Condensing Indoor Natural Gas Tankless Water Heater

$1,201.56at PlumbersCrib.comChecked 19 h ago
See all prices and details
Visit PlumbersCrib.com
Pros
  • Highest flow in the pair at 9.5 GPM
  • Condensing design with 0.93 UEF
  • Long PVC vent runs up to 150 ft
  • Tight 1/2 in side clearance
  • Leak detection included
Cons
  • Needs a condensate drain and neutralizer
  • Higher install complexity
  • Costs more upfront than the non-condensing unit
Rheem
Rheem RTG-84DVLN-3 High-Efficiency Non-Condensing Indoor Natural Gas Tankless Water Heater

Rheem RTG-84DVLN-3 Tankless Water Heater

Rheem RTG-84DVLN-3 High-Efficiency Non-Condensing Indoor Natural Gas Tankless Water Heater

$924.41at AmazonChecked Nov 8
See all prices and details
Visit Amazon

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

Pros
  • Simpler non-condensing install
  • No condensate drain needed
  • 8.4 GPM suits most single-family homes
  • Lighter at 46.5 lbs
  • Up to 34% more efficient than a 50-gallon tank
Cons
  • Lower flow and BTU input than A
  • Shorter 43 ft vent limit
  • Less efficient without condensing

What separates them

Rheem RTGH-95DVLN-3 Tankless Water HeaterRheem RTG-84DVLN-3 Tankless Water Heater
Efficiency typeCondensing, UEF 0.93Non-condensing, no condensing recovery
Max flow rate9.5 GPM8.4 GPM
Max gas input199,900 BTU/h180,000 BTU/h
Vent runPVC up to 60 ft (2 in) or 150 ft (3 in)Up to 43 ft
Clearance1/2 in side-to-sideStandard clearances
Condensate drainRequiredNot required
Install complexityMore involved: drain line and PVC ventingSimpler, fewer parts
Hot-Start ProgrammingIncludedIncluded

Price history

  • Rheem RTGH-95DVLN-3 Tankless Water Heater: lowest $1,411.70 on Nov 8 at Amazon.
  • Rheem RTG-84DVLN-3 Tankless Water Heater: lowest $924.41 on Nov 9 at Amazon.

Prices at every store

Rheem RTGH-95DVLN-3 Tankless Water Heater

  • PlumbersCrib.comNew

    In stockReturn policy

    $1,201.56Checked 19 h ago
    Visit PlumbersCrib.com
  • Wholesale Water HeaterNew

    In stockReturn policy

    $1,505.71Checked Nov 8
    Visit Wholesale Water Heater
  • AmazonNew

    Availability unknown

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

    $1,411.70Free shippingChecked Nov 8
    Visit Amazon
All 3 stores and price history →

Rheem RTG-84DVLN-3 Tankless Water Heater

  • PlumbersCrib.comNew

    In stockReturn policy

    $953.00Checked 19 h ago
    Visit PlumbersCrib.com
  • BJ DiscountNew

    In stock

    $995.00+ $250.00 shippingChecked Nov 8
    Visit BJ Discount
  • AmazonNew

    Availability unknown

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

    $924.41Free shippingChecked Nov 8
    Visit Amazon
  • Voomi SupplyNew

    Out of stock

    $1,211.84+ $330.00 shippingChecked Nov 8
    Visit Voomi Supply
All 4 stores and price history →

Specs compared

SpecRheem RTGH-95DVLN-3 Tankless Water HeaterRheem RTG-84DVLN-3 Tankless Water Heater
Temperature range100°F - 140°F100°F - 140°F
Height23.7"24.2 in.
Max gas input199,900 BTU/h—
Min gas input11,000 BTU/h—
Uniform Energy Factor0.93—
Max flow rate9.5 GPM—
Flow at 45°F rise8.5—
Flow at 67°F rise5.7—
Factory temperature120°F—
Minimum activation flow0.4 GPM—
Minimum continuous flow0.26 GPM—
Maximum altitude7,800 ft.—
Show all 22 specsShow fewer specs
SpecRheem RTGH-95DVLN-3 Tankless Water HeaterRheem RTG-84DVLN-3 Tankless Water Heater
Maximum flow rate—8.4 GPM
Minimum flow rate—0.4 GPM
Maximum gas input—180000
Minimum gas input—11000
Voltage—120V
Amperage—1.1A
Width—13.5 in.
Depth—10.27 in.
Product weight—46.5 lbs.
Water pressure range

What reviewers say

Rheem RTGH-95DVLN-3 Tankless Water Heater

Owner and installer feedback on the RTGH condensing series is generally positive on hot water delivery and ease of installation, with recurring notes about cold-water performance in winter and the upkeep tankless units demand.

What people mention
  • Hot water deliveryPraisedOwners report continuous hot water for showers and appliances without running out.
  • Cold weather outputMixedFlow capacity falls at high temperature rise, so cold incoming water limits how many fixtures can run.
  • InstallationPraisedInstallers like the lighter cabinet, tight side clearance and long PVC vent runs.
  • CondensateMixedThe condensing design needs a drain line and neutralizer, which adds work to the install.

Rheem RTG-84DVLN-3 Tankless Water Heater

Owner and installer feedback on the RTG series is generally positive, with praise for steady hot water and straightforward installation. Complaints center on cold-water pulses at low flow and the limits of a non-condensing unit.

What people mention
  • Hot water deliveryPraisedOwners say it holds temperature through showers and back-to-back use.
  • Cold burstCriticisedSome report a short cold pulse when the burner lights at low flow.
  • InstallationPraisedInstallers like the lighter cabinet and long vent allowance.
  • EfficiencyMixedBetter than a tank, but non-condensing units trail condensing rivals.

Questions and answers

Which handles two showers at once?
The RTGH-95DVLN-3. At a 67°F rise it delivers 5.7 GPM, enough for two showers plus a faucet. The RTG-84DVLN-3 tops out at 8.4 GPM overall and struggles with three hot draws at once.
Is the condensing unit worth stepping up to?
Yes if you plan to stay in the home and gas use matters. The 0.93 UEF and 199,900 BTU input cut fuel use and give more hot water. Skip it if your vent run is short and 8.4 GPM is enough.
Which lasts longer?
Both carry Rheem's 15-year limited heat exchanger warranty on the condensing side and a comparable limited warranty on the non-condensing unit. Longevity depends more on water quality and annual flushing than on the model.
Do both need electricity?
Yes. Both are indoor natural gas units that use 120V power for controls and ignition. The RTG-84DVLN-3 draws about 1.1A.
Can I vent either through an existing wall?
The RTG-84DVLN-3 is easier for a short side-wall run, up to 43 ft. The RTGH-95DVLN-3 needs PVC venting and a condensate drain, but allows runs up to 150 ft with 3 in pipe.
Which is better for a cold climate?
The RTGH-95DVLN-3, because its higher BTU input holds flow better at a large temperature rise. Check the incoming groundwater temperature; both are rated to 7,800 ft altitude.

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  • Rheem Super High Efficiency IKONIC RTGH-S11i Tankless Water Heater vs Rheem RTG-84DVLN-3 High-Efficiency Non-Condensing Indoor Natural Gas Tankless Water Heater

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