Best Rheem Indoor Heaters In May 2025

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If you are considering to buy the Best Rheem Indoor Heaters, you should go through this product guide.

To help you in your search, we have completed this list of the Best Rheem Indoor Heaters.

Top Rated Best Rheem Indoor Heaters Of 2025

Rank	Product Name	Score
1	Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater Buy Now	9.7 Buy Now
2	Rinnai RL Series HE+ Tankless Hot Water Heater: Indoor Installation Buy Now	9.5 Buy Now
3	Rheem RTGH-90DVLN Prestige Indoor Condensing Ultra Low NOx Natural Gas Tankless Water Heater Buy Now	9.1 Buy Now
4	Rheem RTG-70DVLN-1 Tankless Water Heater, Grey Buy Now	8.8 Buy Now
5	Rheem RTG-84XLP-1 Tankless Water Heater, Grey Buy Now	8.6 Buy Now
6	Rheem RTGH-RH11DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters With Built-in Recirculation Buy Now	8.3 Buy Now
7	Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater Buy Now	8.1 Buy Now
8	Rheem RTG-95DVLN 9.5 GPM Low NOx Direct Vent Tankless Natural Gas Water heater Buy Now	7.8 Buy Now
9	Rheem RTGH-95XLN Prestige Natural Gas Outdoor Whole House Low NOx Condensing Tankless 9.5 Buy Now	7.5 Buy Now
10	Rheem 240V 3 Heating Chambers RTEX-27 Residential Tankless Water Heater Buy Now	7.2 Buy Now

1. Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater

• Intelligent electronic controls designed to increase energy efficiency and safety
• Up to 38-feet of 3-inch pvc pipe or 5-feet of 2-inch pvc pipe
• Low nox version
• 94-percent energy efficient with stainless-steel condensing heat exchanger
• Third party efficiency listed by ahri

2. Rinnai RL Series HE+ Tankless Hot Water Heater: Indoor Installation

• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Rl75in he+ high efficiency tankless hot water heater - natural gas: indoor installation only
• Up to 7.5 gpm hot water flow rate (varies by groundwater temp)
• Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits. hot water is available when you need it!
• Endless hot water for your entire home

3. Rheem RTGH-90DVLN Prestige Indoor Condensing Ultra Low NOx Natural Gas Tankless Water Heater

• Manual gas isolation valve included
• Up to .94 ef with stainless steel condensing heat exchanger
• Indoor direct vent
• Digital remote control and 10 ft. of thermostat wire included
• 11,000 - 180,000 btu/h

4. Rheem RTG-70DVLN-1 Tankless Water Heater, Grey

• For use indoor only
• 160, 000 btu (gas consumed per hour)
• Recirculation pump ready kit ready
• Exclusive water savings technology conserving up to 1, 100 gallons per year
• Exclusive hot start programming minimizes cold water burst by staying in ready-fire state

5. Rheem RTG-84XLP-1 Tankless Water Heater, Grey

• Recirculation pump ready kit ready.8.4 gal./min. at 35 f rise max
• Exclusive hot start programming minimizes cold water burst by staying in ready-fire state
• 157, 000 btu (gas consumed per hour)
• For use outdoors with freeze protection up to -30 degrees
• Exclusive water savings technology conserving up to 1, 100 gallons per year

6. Rheem RTGH-RH11DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters With Built-in

• With dual stainless steel condensing heat exchanger, max gpm of 11 (on 199k btu models)
• Rheem prestige rtgh is a series of high efficiency condensing tankless gas water heaters designed for continuous hot water and 199,00 btu
• Instant hot water at the tap, programmable time based activation, save time on install with built-in pump, reduces water waste

7. Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater

• Natural gas tankless water heater
• Low nox version
• 8.4 gal/min. at 35-degree rise
• Direct vent indoor
• Umc-117 remote control and 10-feet of thermostat wire is included

8. Rheem RTG-95DVLN 9.5 GPM Low NOx Direct Vent Tankless Natural Gas Water heater

• Direct vent indoor
• 1/2" gas line compatibility on every model
• Umc-117 remote control and 10-feet of thermostat wire is included.low nox version
• 9.5 gal/min. at 35-degree rise
• Natural gas tankless water heater

9. Rheem RTGH-95XLN Prestige Natural Gas Outdoor Whole House Low NOx Condensing Tankless 9.5

• 2-pipe direct vent system designed for pvc pipe
• Industry best .26 gpm minimum flow rate, .40 gpm minimum activation flow rate
• Didgital (umc-117) remote control and 10-feet of thermostat wire included
• .94 energy factor (ef) with efficient stainless steel condensing heat exchanger
• Up to 35-feet. of 3-feet pvc pipe or 5-feet of 2-feet pvc pipe

10. Rheem 240V 3 Heating Chambers RTEX-27 Residential Tankless Water Heater

• Durable copper immersion three heating elements, field serviceable
• Simple installation bottom 3/4 inch npt water connections
• Most advanced self-modulation, adjust power to meet hot water demand
• Threaded for easy replacement, simple installation, digital temperature display
• External digital thermostatic control with led display (+/1 degree accuracy)