ThermoMate 102,000 BTU 4.7 GPM Natural Gas Tankless Water Heater, High Efficiency Instant On-Demand Hot Water for Whole House Use, Indoor Residential Water Heater with Multi-Point Simultaneous Heating
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Availability:
In Stock.
Arrives
Saturday, Aug 9
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Style: Natural Gas
Material Type: 4.70 GPM
Features
- [4.7 GPM & 102,000 BTU] - The ThermoMate instant hot water heater delivers consistent hot water to 3-4 fixtures simultaneously, allowing you to have unlimited hot water on demand. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within 1F fluctuations for a comfortable shower experience.
- [Safety & Reliable] - The gas tankless water heater comes standard with a range of safety features including boil-dry burning protection, Freeze protection, Flame out protection, Overheating Protection, Over temperature protection, Timeout protection, Pipe blockage protection, High-Temperature Lock Protection, Excessive Air Pressure Protection.
- [Energy Efficient & Save Money] - The heat exchanger is constructed from high-quality oxygen-free copper, providing superior thermal conductivity and corrosion resistance compared to stainless steel. It achieves a thermal efficiency of 98% (vs. 80% for stainless steel models) and boasts a uniform energy factor (UEF) of 0.81. This design reduces energy waste, lowering annual operating costs by approximately 30% versus traditional systems.
- [Smart Diagnostic Display] - Equipped with a 3.5-inch LED touchscreen, it allows you to effortlessly adjust and monitor output water temperature(90F to 140F)while providing real-time tracking of water flow, fan operation, and flame status. Advanced error code technology enables rapid diagnosis of water heater malfunctions. The UL-certified 120V/5-foot power cord ensures continuous power supply for real-time monitoring systems.
- [Easy to Install & Save space] - The whole house tankless water heater features standard 3/4" NPT water inlet/outlet connectors, a 1/2" NPT gas inlet, a 3" OD vent, and a UL-approved 120V plug, ensuring compatibility with most households. With its compact dimensions of 21"H x 13"W x 7"D, the on-demand water heater requires less than one-third of the space occupied by traditional tank models, freeing up valuable room in your home.
- [Wind Resistant] - Engineered with a DC High-speed Fan (360Pa static pressure/3000 RPM), the system ensures high-velocity exhaust evacuation capable of withstanding Category 10 typhoon-force winds. This design eliminates safety risks such as backdraft and flameouts during extreme weather conditions.
Brand: thermomate
Product Dimensions: 13.77"W x 21.65"H
Special Feature: Dry Combustion Protection, Flame Failure Protection, Integrated Error Code Indicator, High Water Pressure Protection, Anti-Freezing Protection See more
Color: Silver
Voltage: 120 Volts (AC)
Brand: thermomate
Product Dimensions: 13.77"W x 21.65"H
Special Feature: Dry Combustion Protection, Flame Failure Protection, Integrated Error Code Indicator, High Water Pressure Protection, Anti-Freezing Protection
Color: Silver
Voltage: 120 Volts (AC)
Maximum Flow Rate: 4.7 Gallons Per Minute
Maximum Temperature: 140 Degrees Fahrenheit
Heat Output: 113000 British Thermal Units
Efficiency: 0.81
Style: Natural Gas
Maximum Operating Pressure: 150 Pound per Square Inch
Mounting Type: Wall
Is Electric: No
Manufacturer: thermomate
UPC: 850069925208
Item Weight: 22 pounds
Country of Origin: China
Item model number: CZ422NG
Special Features: Dry Combustion Protection, Flame Failure Protection, Integrated Error Code Indicator, High Water Pressure Protection, Anti-Freezing Protection
Included Components: Tankless Water Heater x1, Installation Kits x1, User's Manual x1
Batteries Required?: No
Date First Available: March 1, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 9
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Style: Propane
Material Type: 4.70 GPM
Exhaust pipes don't come with the heater. Be sure you order the correct one(s) for your particular situation or use. Mine will be through the wall to outside. You may want your exhaust to go through the roof which requires different sections and fittings. The use of a system to occasionally clean the heater water line is another item you should order separately. I have a 100 gallon propane tank and a automatic tank switch to swap to a different tank if the first one empties out. I will buy a second tank soon. This heater is one of the best available in propane tankless hot water heaters!
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Reviewed in the United States on April 26, 2025 by Salesfreedom
My wife and I installed this in our newly built vacation cabin. I really like it is very efficient and takes up very little space. It is really a great piece of equipment It was easy for my heating and cooling professional get me setup, It didn't take long and it really is great to have hot water on demand. Definitely recommended to others and thinking about buying one for my personal home.
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Reviewed in the United States on July 1, 2025 by MJ
Style: Natural Gas
Material Type: 4.70 GPM
Try to match the water flow to actual usage in the house. This thing makes heat like mad but will never stay consistent. You get water that's hot as balls and then it goes cool because the burner is aggressive. If we take a shower we run a sink on hot to make it better but it's never right. The only time you get pretty accurate is when filling a bathtub.
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Reviewed in the United States on May 13, 2025 by CrankyOne
I recently installed the ThermoMate Propane Tankless Water Heater, and it has been a fantastic addition to my home! With a capacity of up to 2.93 GPM, it provides instant hot water for both my bathrooms and kitchen, which is a game-changer for busy mornings. The 75,000 BTU output ensures that I never run out of hot water, even when multiple points of use are active at the same time. I love how efficient it is—no more waiting for the water to heat up! The installation process was straightforward, and I appreciated that it’s designed for residential indoor use. One of the standout features for me is how compact it is, which saves space compared to traditional water heaters. Overall, I highly recommend the ThermoMate tankless water heater for anyone looking for a reliable and efficient hot water solution. It has truly improved my daily routine!
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Reviewed in the United States on May 8, 2025 by Joel S.
AT 75k btus this water heater has a lot of power for its size. AT the price I would expect more gpms but the btus make up for it. This is a good option for a small single family home, or even better for an rv, skoolie or tiny house trailer. It has more than enough power to handle the demands of a couple of people. In regards to installation and assembly if you are not familiar with working with propane I would probably leave the diy alone. But you can always try and take the necessary precautions, with a fire extinguisher on hand. Until We Meet Again -Off The Grid Ken
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Reviewed in the United States on April 7, 2025 by Off The Grid Ken
Veery efficient and I always have warm water. I had someone come install as i am not that experienced. He said it was an easy installation for him. I think the price point was fine for what it does. I would say it isfor a smaller house. You can set the temperature so it doesnt come out scalding hot. I expect this will work for a good number of years.
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Reviewed in the United States on May 14, 2025 by Highbern8
threw it in a travel trailer, so far so good. husband and brother in law installed it, said it wasnt hard to do, took em all day but whatever. heats up water quickly and i really have 0 issues with it. nice having a proper water heater in the trailer now though, got sick of whatever was in there not getting hot at all
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Reviewed in the United States on April 29, 2025 by Lilly
Installed this in my garage. The install was easy and the directions clear. I have used this to wash my jeep in hot water and worked great . As a added plus to jave hot water to wash the grease off your hands and clean the garage floor is very convenient. Value for dollar is great . This is efficient and a quality appliance.
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Reviewed in the United States on April 12, 2025 by Adam B Nevins