Bests & Worsts Reviews from Amazon

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!