GIRARD Tankless RV Water Heater, 12V Power, 42,000 BTUs, Quiet Operation, Onboard Microprocessor, Digital User Control Panel, Freeze Protection, Easy Installation - 2022107534

Bought this when our old heater went out. Easy to install and works wonders. Sizing was accurate.

Simple to install and it works great!

One year update....The unit is still running like a champ! I'm getting a 73°F rise across the unit in the winter time with 40 something inler water temp. I can find no fault with this unit.Three month update...Still running strong AND using less propane than I would have otherwise with the 12 gallon suburban. As we all know, running dsi heaters with both propane and a.c. element create faster recovery. A non issue with the Girard unit. I am seeing a 65°F rise across the unit, but I have mine set at 115°F anyway. Still, by far, the best $500 I ever spent for our coach. I just wish I had put these in all if our rv's! Momma is still happy with her 25 minute showers and I don't mind the extra time under that hot water to loosen up these old bones before bedtime. I've seen some other reviews really ragging on this unit. Remember three things, you MUST provide a MINIMUM flow rate of 0.9 gpm as pulseless as possible or the flow sensor will not trip the control circuit. If, when adjusting your temperature at your plumbing fixture (shower/ sink) and the hot water side flow drops below 0.9 gpm, you will get hit with a slug of cold water. I prefer setting the temp at my desired water temp and running hot wide open. This prevents any undesired flow characteristics due to infamous low flow water fixtures associated with recreational vehicles. Finally, if you don't have shore connections, don't let your shower time get away from you or you'll have a full gray water tank before you know it. Remember, you'll also need to order a replacement door specific to the existing, EXISTING unit which you are replacing/retrofitting.This has been the absolute, best investment we have ever made towards improving our RV'ING experience! As a plumber, installation was fairly straightforward. Using existing 12vdc to my "old/new" 10 gallon Suburban in our new 2017 Columbus fifth wheel, the installation took about two hours. You will need to order a separate door for your existing opening/water heater make. If you are of average aptitude and mechanical skill, you should be able to do a self install. If you have any apprehension, whatsoever, have a pro install. Today, I took my first ever, 10 minute shower in my fifth wheel, as did my wife. The heater does have a minimum 0.9 gpm flow rate to fire. So, if you are using a pressure regulator for your shore connection, verify that you can get at least 1 gpm thru your shower head. I did the old bucket and stop watch trick and ended up at 1.5 gpm. I also used the existing 12vdc from my water heater switch on the control panel. You might see some complaints, but trust me, if you correctly install and provide proper water flow, you will LOVE THIS HEATER!

My wife and I are Full Time RV'rs. We roll in a 2016 Coachman Pursuit 32 ft Class A. Our hot water tank split and was totally trashed. After lots of research we opted to go tankless. Again, lots of research brought me to this unit. I have to tell you the install was very easy. If you have just basic skills and knowledge you can install this yourself. Make sure you have a roll of Butyl Tape and for us a small junction box. After removing the old unit, we installed a small junction box to connect the 12 volt power right off the furnace that sits next to the water heater. I also replaced both water line connections with new ones. I opted to use the steel mesh lines like the ones used on washer machines. Gas line connection was easy peasy. The only thing you don't get is the door cover. You can not use the old door cover because the exhaust system is completely different. The one that is recommended with this unit fit perfect. The gas usage is 100% more efficient than before. As you know throughout any 24 hour period the gas would light off and reheat the water in the tank as the temp dropped. And if you really needed to use it for say a shower, you need to shower fast. 6 Gallons does not last long. With tankless. The gas fires off ONLY when you open a hot water valve. After about 15 to 20 seconds you have wonderful hot water. This unit claims that it can run continuous for almost 2 hours. Have not tried it but our showers are now wonderful. The control panel is simple. It is preset at 115 degrees. you can change it up or down at your pleasure. We have found 115 is perfect for us. So far this has been a great unit and the replacement cost for my original unit, 6 gallons, gas fired.....was 811.00. So this purchase with the door, saved me 300,00. Its a great unit and we love it!!!!

This water heater is horrible compared to our old 10 gallon tank style heater. It makes nice hot water, but you have to wait a lot longer for it. The worst part is if you shut the water off even for a second, when you turn it back on you get a short supply of hot water and then a BLAST of ice cold water that takes 5 seconds or more to recover. It was so slow to recover in the kitchen sink (which is the farthest away from the water heater), that you are essentially doing dishes with cold water the entire time. One option would be to just let the hot water run the entire time (wasteful). My husband helped remedy this situation by replacing the entire 1/2" pex line to the sink with 1/4" tubing. This helped tremendously with cutting down the recovery period every time you turn the hot water back on, but at the cost of having much lower volume come out of the faucet.Oh and yes, our water pressure is sufficient (50psi) and there are no restrictions before the water heater.In the shower once the water gets hot, it will produce nice even hot water for the duration of the shower. But for the kids taking a bath, when it comes to hair washing time, they will get a cold blast of water on the head if you don't run the water for awhile first. Very distressing.Girard has some more development to do on this. The delay in it firing up after sensing water flow is unacceptable in our opinion. We may try reducing the water line size to the shower as well in the future. But considering the price of this unit and all the positive reviews we read, we are very disappointed.