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RecPro

RecPro RV Tankless Water Heater | On Demand Hot Water Heater | 42,000 BTU | Remote Control Included (18" x 18" Door Size, Black)

  • Based on 570 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, May 22
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Color: Black


Style: 18" x 18" Door Size


Features

  • Optimal size options - Choose from two door size options, 15"H x 15"W or 18"H x 18"W, to fit your specific RV needs. Either way, the compact design of this water heater allows for easy installation in your RV's tight spaces.
  • Reliable and efficient - The heat exchanger is made of copper for maximum durability and efficiency. With an automatic ignition and low water pressure startup, this tankless water heater is both convenient and energy-saving.
  • Advanced features - Equipped with wired controllers for power, temperature, and Celsius-to-Fahrenheit controls, as well as fault auto-diagnosis and code display. The forced exhaust structure ensures safe operation while the gas inlet and air inlet grilles provide optimal ventilation.
  • Unmatched performance - Our RV tankless water heater has a speed changing function for adjusting to different flow rates, as well as wind resistance function for use in outdoor environments. Plus, the water and gas linkage control provides precise temperature regulation for a comfortable experience every time.

Description

Details: Tankless water heater Instant heating abilities Dimensions (Front panel): 15” H Dimensions (Front panel): 15” W Dimensions (Entire unit): 14.3” D Dimensions (Back section): 12.7” H Dimensions (Back section): 12.7” W Dimensions (Back section):13.8” D (1) Water outlet and (1) inlet (1) Gas inlet Gas inlet measures 3.8” from the bottom 12V DC Power port measures 7.42” from the bottom (1) Flat lock Air inlet grilles (1) Decorative ring With wired controller with power, temperature, and Celsius-to-Fahrenheit controls Low water pressure startup Flameout protection Forced exhaust structure Speed changing and wind resistance function Water and gas linkage control Fault auto-diagnosis and fault code display The tankless water heater is NOT designed to prevent your pipes from freezing in low- temperature conditions. Insulation is REQUIRED for proper winterization of your RV.

Brand: RecPro


Power Source: gas_powered


Product Dimensions: 12.5"W x 12.5"H


Special Feature: Tankless design, automatic ignition, low water pressure startup, flameout protection, forced exhaust structure, speed changing and wind resistance function, water and gas linkage control, fault auto-diagnosis, and fault code display See more


Color: Black


Power Source: gas_powered


Special Features: Tankless design, automatic ignition, low water pressure startup, flameout protection, forced exhaust structure, speed changing and wind resistance function, water and gas linkage control, fault auto-diagnosis, and fault code display


Wattage: 20 watts


Flow Rate: 3 Gallons Per Minute


Heat Output: 42000 British Thermal Units


Efficiency: Efficient


Mount Type: Exterior mount


Is Electric: No


Color: Black


Style Name: 18" x 18" Door Size


Material Type: Copper


Item Dimensions W x H: 12.5"W x 12.5"H


Item Weight: 20.3 Pounds


Item Depth: 13.8 inches


Brand Name: RecPro


Model Number: RP-1057-42BTU


Manufacturer: RecPro


UPC: 193652106104


Included Components: Remote, Water Heater


Item Type Name: Water Heater


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 22

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • High quality
Color: Black Style: 15" x 15" Door Size
This product is of exceptional quality and performs flawlessly. It was incredibly easy to install, making the setup process a breeze. Additionally, the customer service is outstanding! Their technical support is both efficient and highly effective. I’ve purchased this product twice and remain extremely satisfied, even after over two years of use. Highly recommend! ... show more
Reviewed in the United States on August 26, 2025 by The reviewer
    • IMPRESSED
Color: Black Style: 15" x 15" Door Size
Review Image by WALLY
My picture is horrible, because I was hot, sweaty, bleeding from several areas, and had uttered more curse words to fill up an entire case of swear jars. Oh and of course my blood sugar was low and I was 'hangry.' But that's what happens when you do big projects on your RV. You can see the old leaky water heater dumped on the ground, and the new one in place, ready to be plumbed. A few modifications, and it was a nice swap. Now how to deal with the fact that it is about an inch too small all the way around? I could modify the exterior of my RV, but no, I figured out a way to mount the new heater, and still use the same door from the old heater. I got lucky; most RVs probably won't be this easy. That's on you. As for how it works: Quite well. I've been playing around with it for about 2 months. You can set it and forget it. Your water will stay the same temp. It likes steady flow; if you mess with it here and there, it will turn off and on, and you'll have to wait a minute or so until it levels out. That's no big deal. The remote does have a few weird things going on, but I find the less I mess with things I don't understand, the better they work. I guarantee you that 90% of the bad reviews on this water heater are because of customer stupidity... ... show more
Reviewed in the United States on July 21, 2023 by WALLY
    • Edited Review - Do not buy this.
Color: Black Style: 15" x 15" Door Size
Straightforward and easy to install. It took me about 2.5 hours to remove the old one and install this one. Most of the time was spent removing the old one and modifying the opening. This is 1/2 inch bigger both sides than the opening in a Shadow Cruiser with a Suburban 6 gallon. To get the Suburban out, I had to remove the circuit board sticky taped to the top of it and pulling it out of the opening busted off half of the styrofoam insulation. Plus, the Suburban has wires running everywhere, I had to find the straight 12V pos and neutral (red and green, I just abandoned the blue wire.) I turned the 110V circuit into a wall outlet. The Fogatti is laid out perfect, the connections are easy to make. Unfortunately, I had to remove the screws holding the back panel (2 sides) just to get it through the opening, even after grinding off excess fiberglass and aluminum framing to make the opening bigger. I metal taped the sides of the back panel where the screws are removed, it is just as solid as having the screws in. Plenty of wire is included with the remote, unless you are mounting it in the bathroom, which I do not understand. I put mine by the power center and set it at 123 degrees and will probably never mess with again. A slight issue that I was already aware of; the heater takes a couple of seconds to turn cold water into hot water. When you close the kitchen faucet and then open it again, you have to wait to get hot water, maybe 7-10 seconds. I have to admit, it was nice with the tank heater having hot water uninterrupted within seconds. But, believe me, I can deal with it. First time I ran a hot shower without cutting off the water to soap up. No more Navy submarine BS. Luxuriated in that wonderful endless stream of water. Be sure to get a thermostatic mixing valve, I'm not sure what happens when this is starved of cold water (kitchen faucet opened while you are in the shower.) I bought this one https://www.amazon.com/gp/product/B09QPCMN7P/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 and it has been great (looks good too.) Plus, no more gas being used to keep water warm in the tank. And the outside cover of it looks a lot better, more subtle and stronger looking. And, a $120 discount from when I was pricing these during RV season. I'm a satisfied customer. Edit 12/17/23 - I got ten days of enjoyment from using this product. When I say enjoyment, unrestricted, full flowing hot water under all conditions. On the eleventh day, it started flaming out, right in the middle of a shower. Since then it has gone to 1) severely restricting the flow of water, 2) flaming out almost immediately, under any and all conditions. There is some stupid code built into the circuit board that will not let it simply heat the water. It is chasing ghosts. Going down the rabbit holes. During the ten days it worked perfectly, none of the ambient conditions have changed since then 1) propane pressure is the same or stronger (replaced with full tank, tried a heating blanket for the tank -failed.) 2) the water pressure hasn't changed (my faucets will rip out cold water.) 3) temperature of the incoming water (today it actually got warm outside, it was still the worst shower I ever had in my life.) I've tried every temperature set point, I've tried every faucet setting, I have a shower protocol now; turn it on full hot water set at 103 degrees, wait for it to flame out, usually 30 seconds. Stop the flow, restart the flow, wait for the next flame out. Usually 2 minutes. Stop the flow, restart the flow, enter shower, before it was giving me uninterrupted flow but not today. It kept flaming out. I contacted the seller of the item, they blew me off (contact Amazon with warranty issues, check the wires on the gas valve.) Hey, that's great, thanks for your concerns, it's not a big deal not being able to take a lukewarm shower. Thanks for all your help. But, check it out, this thing is coming back to you, and I don't want another one. You don't care and neither do I. ... show more
Reviewed in the United States on November 27, 2023 by AC315
    • Continuous hot water, after troubleshooting
Color: Black Style: 15" x 15" Door Size
First, install was not too bad other than it not coming with the pressure relief valve, cost $100 for the valve and associated brass tee's and reducers, etc., I used vinyl hose on the pressure relief valve and routed it out the bottom of the camper, so if it relieved it would safely drain outside. Now as for usage, if you boondock, this probably isn't going to make you happy, you have to have the water flowing to make it heat, with that said, I had hot water everywhere on my camper, except in the shower where I wanted this for anyways. In the shower it would get warm then cold and do it in pulses, so after trying to figure it out I realized it wasn't getting enough flow, so I pulled the shower head apart and pulled the water restrictor out....after that I had all the hot water I wanted for as long as I wanted. I'm not sure if you could drill an extra hole in the restrictor and get it to work properly, and since I threw it away won't find out. May try it with my outdoor shower head(same one) and see if it's able to still restrict some but get hot water. Only complaint is I wish it got hotter, around 140F would be my wish but I like hot hot showers, the 123F it runs is fine, just a wish. ... show more
Reviewed in the United States on May 22, 2022 by Marc Ross
    • Awesome value
Color: Black Style: 15" x 15" Door Size
Perfect water heater for the money. That instant-on in the PNW in the winter is very nice. The remote control is awesome as well.
Reviewed in the United States on March 16, 2026 by Jonathan Miller

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