10 BEST 40 GALLON GAS WATER HEATERS for sale in 2022 – compare between the best 40 gallon gas water heaters on sale.

Rank Product Rating
1
Rinnai V65IN Tankless Water Heater, Large, V65iN-Natural Gas/6.5 GPM
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Product Highlights
  • 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

$1,060.00 $683.54
2
A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 gal
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7 Reviews
Product Highlights
  • 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

$736.67
3
Excel Pro Tankless Gas Water Heater NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem,Noritz, Bosch FREE FLUE KIT
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Product Highlights
  • Modulates heat output in response to the flow rate of water running through the unit.
  • Power vented directly vertically (rooftop) or sideways (wall) via Stainless Steel CAT III Flue 3.5" Diameter Included (20")
  • NATURAL GAS - European Model - Digital Display is in Celsius
  • Delivers 6.6 gpm of hot water with a 35°F Instant Temperature Rise (Equivalent to 5.5gpm with a 45F temp Rise)

$399.00
4
A.O. Smith GCR-40LP ProMax Plus High Efficiency Liquid Petroleum Gas Water Heater, 40 gal
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1 Reviews
Product Highlights
  • 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

$753.29
5
A.O. Smith ENS-40 ProMax Short Electric Water Heater, 40 gal
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Product Highlights
  • Permaglas glass coating protects steel tank from corrosion and maximizes tank life
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing hot water output; made from long-lasting PEX cross-linked polymer
  • CoreGard anode rode aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes
  • Durable, tamper-resistant brass drain valve

$591.08
6
Bradford White BWC RE340S6-1NCWW 40GAL 240V
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Product Highlights
  • Protective magnesium anode rod provides added protection against corrosion for long trouble free service
  • The package length of the product is 30 inches
  • The package width of the product is 30 inches
  • The package height of the product is 60 inches

$660.06
7
Rheem AP14270G Gas Control Thermostat, Natural Gas
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Product Highlights
  • Guardian Gas Valve
  • Natural Gas
  • Replacement Parts

$109.95
8
Noritz EZTR40NG 40 gal Tank Replacement Indoor Tankless Water Heater 6.6 GPM (Standard Vent) - Natural Gas
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Product Highlights
  • Endless hot water
  • Direct replacement for existing 40 gal tank water heater
  • High Efficiency
  • Low Nox

$1,299.99
9
Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N
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Product Highlights
  • Bradford White ICON System
  • Advanced ScreenLok Technology Flame Arrestor Design
  • Resettable Thermal Switch
  • Maintenance-Fre

$800.00
10
Camplux 12L 3.18 GPM Indoor Tankless Natural Gas Water Heater
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Product Highlights
  • Sleek,Modern,Compact Design -Trendy and modern design with unique black glassy front panel featuring an easy to use LED touchscreen controls with Fahrenheit Digital & Display.The compact size - (L)14.4 x (W)4.7 x (H)25.4 inch tankless water heater saves more space than traditional tanks.
  • On-Demand Tankless Water Heater-High water capacity range 0.8 - 4.8 GPM, Camplux high efficiency 3.18 GPM natural gas tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures instant hot water for 2-3 persons home comfortable shower.
  • Multiple Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
  • Convenient, Easy Installation -Uses standard 1/2" NPT water fittings and comes with 2.3 inch horizontal venting pipe allowing for convenient and quick installation,great for whole home,small cabins and remote apartments use. You can take Camplux customized wall thimble-WT236 for perfect indoor use.

$329.99

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