Best Natural Gas 40 Gallon Hot Water Heater

This compact , yet powerful unit – with gas inputs up to 140,000 BTU per hour – can meet all the hot-water needs of a small to medium American home or apartment. Designed to virtually do anything a 40-gallon tank-type water heater can do and much more The Wall mounted Excel Pro is design to work with hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances. LCD Display Control: Just set the desired water temperature The Excel Pro has an energy factor of 0.84-0.85. Excel Pro: Modulating Technology Tankless water heaters can be further divided into two categories according to their heating capability: “full on/full off” versus “modulating”. Full on/full off units do not have a variable power output level; the unit is either fully on or completely off. This can cause an annoying and possibly hazardous variation of hot water temperature, as the flow of water through the heater varies. Modulated tankless water heaters change their heat output in response to the flow rate of water running through the unit. The Excel Pro comes with a display panel where you can set the output temperature and regardless of water flow the unit modulates the fire power. Pure Copper Heat Exchanger * As used by other top of the line tankless gas water heater manufacturers like Rinnai, Takagi, Rheem and Noritz. Features & Benefits Super compact 14.5″ x 23″ x 5.5″ size 84%+ thermal efficiency 140,000 BTU maximum input 6.6 gallons/ minute capacity at 35F degree rise Minimum activation flow rate of 0.5 gpm Electronic ignition. Has a Power vented fan that Vents directly vertically or horizontally with 3” stainless steel flue 3′ long flue and elbow included. Can be used in recirculation and space heating application . Delivers 6.6 gpm of hot water with a 35°F Instant Temperature Rise (Equivalent to 5.5gpm with a 45F temp Rise). European Model Digital Display is in Celsius.

40 Gallon Natural Gas Chimney Vented water heater by American Water Heater

Product Description

Our high-efficiency plus RL models, offer Rinnai’s most advanced technology in non-condensing tankless water heaters. You’ll enjoy the endless hot water and energy savings you expect, with the addition of Wi-Fi monitoring and recirculation technology for faster hot water delivery.

From the Manufacturer

The R94LSi lets you enjoy continuous hot water for up to five plumbing and appliance outlets simultaneously and always at a consistent, pre-set temperature. With a capacity of up to 9.4 gallons of hot water per minute (GPM), the R94LSi still delivers up to 40% energy savings and significant space savings. This compact, interior-mount unit vents directly to the outside with a concentric venting system.

Product Description

With gas inputs of 160,000 BTU, the T-H3J can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in colder climates.

From the Manufacturer

With gas inputs of 160,000 BTU, the T-H3J can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in colder climates.

WiseWater Indoor Tankless Water Heater 6L – Propane Gas
Note: Install indoors only, do not install it in strong wind or airflow environment!!!

JSD12-6F-L model is the smallest unit in the WiseWater line-up. It is perfect for light residential (i.e. small apartment units) and radiant heating applications.

Can be converted into a direct-vent unit.
Indoor installation only.
Cost-efficient and environmental friendly.
Perfect for light residential and high altitude area
Low water pressure required for ignition (0.01MPa)
Flow rate: 1.6 GPM maximum.
Standard 1/2″” NPT water fittings.
No AC outlet needed.
Dimensions: 17.6″” H x 12″” W x 4.8″” D.
Weight: 10.8 lbs

Product description

Rheem SP14270G Combination Natural Gas Control ValveRheem SP14270G Combination Natural Gas Control Valve Features: Guardian Gas Valve Natural Gas Replacement Parts For use with: 22V40 PROF, 22V50 PROF, 42V40SPROF, 42V50SPROF, 22V30F, 22V40-36F1, 22V40F1, 22V50F1, 22V40SF, 42V40SF, 42V50SF, P2-40 PROF, P2-50 PROF, PH2-40SPROF, PH2-50SPROF, P2-30F, P40-36F1, P2-40F1, P2-50F1, P2-40SF, PH2-40SF, PH50SF

From the Manufacturer

Rheem Gas Control (Thermostat), Natural Gas. NOTE: All gas valves should be installed by a licensed professional.

Product Description

The T-H3M supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, recirculation systems, hydronic heating systems, radiant floor systems, and/or domestic & heating applications, The T-H3M is a high efficient, condensing thankless water heater perfect for residential applications. With gas inputs of 120,000 BTU, the T-H3M can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in colder climates.

From the Manufacturer

SAFETY FEATURES: Air-Fuel Ratio (AFR) Sensor, Exhaust & Water Temperature Safety Control, Overheat Cut-Off Fuse – INTERNAL FREEZE PROTECTION SYSTEM – POWER DIRECT VENT DESIGN: Exhaust, 3″ PVC Venting up to 70 Feet or 4″ PVC Venting up to 100 Feet, Provides flexible venting with PVC, CPVC, or ABS Pipe for Intake and Exhaust (solid core only), Category IV Stainless Steel venting can also be used

Conclusion

By our suggestions above, we hope that you can found natural gas 40 gallon hot water heater for you.Please don’t forget to share your experience by comment in this post. Thank you!