Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: We have checked batteries, gas supply and water pressure, but cannot get it to start.  Any ideas before we send it back?
Document: Otherwise, the water temperature fluctuates wildly, as the unit will cut off if it senses a drop in water pressure as you try to adjust to the desired temperature (like in the shower). To start it again, you must turn off the hot water completely, wait a second or two, and then begin again trying to get an acceptable &#34;mix&#34; of hot and cold.A second warning, and the reason I'm back here buying another unit.... There is a small screw type plug on the unit to drain an internal valve - USE IT!
Very well built unit, works right out of box, put in batteries, hook up water and gas, turn on water and adjust temp it is that simple. Filled my hot tub in under three hours with 104 degree water. Unit doesn't get hot even the exhaust is only warm you don't need to worry about kids getting burnt or it starting something on fire. I am buying a secound one for camping.
Bought it for my boat last May. It worked great the first couple of times. Worked thru the summer, now that it's time to start using it again it will not ignite. Also the unit is very picky about what brand of D cell batteries it will take. Tried a few and they would not even fit. Seems like it was made for one brand only. You would think D cell is D cell, but not so. Anyway I got about 12 showers out of it. That makes those pretty expensive showers..
The brand new EZ Tankless Outdoor unit that came with my new house not only caused me so much headaches, but also cost me dearly ($4500!). It's just a disastrous experience I wish to share. The heater can't sustain hot water for more than 5 mins and after turning cold it stays cold. The sensitivity to water pressure might be an issue, but after I got the whole house repiped brand new, the problem remained -- warm water turns cold in the middle of shower!!! I finally got a more reputable brand to replace the EZ Tankless unit and got back to a normal life!
Secondly, our unit was hooked to a water supply consisting of a 55 gallon barrel mounted 9' from the ground on a tower and then fed via Pex line to the unit. That connection did not provide adequate water pressure to fire the unit and produce hot water. Problem solved by placing an in-line Shur-flo RV pump ($95)with automatic pressure switch between the tank and the EZ101.. Bingo, hot water!! Seems to work very good now, but we continue to tweak temperature.
The EZ101 is a good product and works satisfactorily. I use it to fill a 180 gallon therapy tub with hot water twice a week. Hook-up was fairly easy and there is a lot of on-line video help available. It requires two "D" batteries and when the water starts to flow in, it automatically lights the flame. I have it installed outside, so I was not burdened with concerns about exhaust gas ventilation as would be required inside.The single inconvenience for me is  that during the filling of the tank, the flame automatically shuts off after 20 minutes (safety cnsiderations) and the water turns cold.
I bought this to heat the water coming into my Pop-Up camper. I mounted it to a piece of plywood that I hang on the back bumper when I get to a campground. I run the water from the campground faucet through a filter and then through the 101 and into the camper so we can have hot water whenever we need it. It amazes me how quickly the water heats up, and it's so easy to hook up and use. I highly recommend this for a portable hot water heater.
I have an off-grid cabin in northern Vermont and has installed an Excel water heater in 2003. When It gave out this year, I looked to replace it and after a lot of research, decided on the EZ 101. I arrived at the cabin and hooked up the plumbing, but left the propane connection to the gas company. Glad I did! After connecting and testing everything, we turned on the water and.... nothing! On demand hot water heaters are supposed to work by detecting a pressure drop in the water when you turn on the faucet and turning on the gas and applying spark.
Works wonderfully. I use this for a portable shower when building my log home in NH. I think I keep it for an outdoor shower even when the house is finished. 3 stars because it comes with no connections besides the shower head. You'll need a gas line with regulator. I recommend installing a on/off valve for the water supply line inside the shower, when water supply is cut off the heater shuts off vis versa.
One thing the reviews before never stated is that when you crank the heat up, the water pressure drops dramatically. But this is for my dog grooming business and warmer water is not needed so it keeps the pressure I need to get the soap off the shaggy friends.
Answer: yes