10 Best Power Vent Water Heater of December 2025

• V65iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
• Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
• Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Endless hot water for your entire home
• Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

Rinnai

• Provide endless hot water on demand and only as needed
• Save up to 60% on electricity bills for water heating
• Compact design saves space and is easy to install almost anywhere
• No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
• Unlimited hot water whenever is needed
• 5-year
• Allows water temperature to be controlled
• Rustproof, no water loss due to leaks
• Works easily with low levels of water pressure

MAREY

• A replacement panel and vent cap are required when replacing Suburban 6, 10, 12, and 16 gallon tank units with the Nautilus on-demand RV water heater
• Vent Size: 2"
• Use with 1"-2" wall thickness

Suburban

• Endless hot water
• Can be vented with Schedule 40 PVC Pipe and Fitting
• High Efficiency
• Low Nox
• Remote thermostat & 6' power cord included

Noritz

• 94-Percent Energy efficient with stainless-steel condensing heat exchanger
• Intelligent electronic controls designed to increase energy efficiency and safety
• Third party efficiency listed by AHRI
• Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
• Low Nox Version

Rheem

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

A. O. Smith

• Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
• Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
• Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
• Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
• Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

A. O. Smith

• Uses indoor air for combustion; blower exhausts the flue gases
• Exclusive air/fuel shut-off device. Maintenance free - no filter to clean
• Long venting lengths up to 100 equivalent feet
• Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection

Rheem

• Features an exclusive 3-position rotatable blower outlet which adds flexibility
• Dynaclean II dip tube optimizes inlet water pressure to minimize cold water regions within the tank
• State-of-the-art electronic gas control provides more precise temperature control; LED control light displays operation status information
• Hot-surface igniter is more robust and reliable than standing pilot, and reduces energy consumption
• 2-inch, thick, environmentally-friendly foam insulation reduces the amount of heat loss and contributes to overall energy efficiency

A. O. Smith

• Features an exclusive 3-position rotatable blower outlet which adds flexibility
• Dynaclean II dip tube optimizes inlet water pressure to minimize cold water regions within the tank
• State-of-the-art electronic gas control provides more precise temperature control; LED control light displays operation status information
• Hot-surface igniter is more robust and reliable than standing pilot, and reduces energy consumption
• 2-inch, thick, environmentally-friendly foam insulation reduces the amount of heat loss and contributes to overall energy efficiency

A. O. Smith