Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Hello...does this unit have a flow activated switch that turns on the burner once the power switch is on  ?
Document: Used it in my shop to replace a 30 gal unit. Easy to vent out the roof.Works Great! !Get yourself one!
our 27 year old Winnie water heater was becoming unreliable and using tons of propane. The first thing that caught my eye on this unit was the price! We are on a fixed income and this was affordable. My husband does ALL of the maintenance our coach so the second thing I looked at was ease of installation. We did not have to remove anything or install any new lines from the water supply to the coach.
Nice unit for heating large quantities of water. I used for heating 90 gallon spa from 65 to 104 degree via 12v pump. Takes about 60 minutes to reach temperature. Previously tried a Marey (so called 2 GPM), which couldn't continue to provide consistant hot water for long time, which was returned. Very happy with this item.
Get your fittings before you start to save trips to the hardware store! Once installed the unit works great. Instant hot water in unlimited amounts. It doesn't look very pretty on the outside but he built a vented standing cover to make it more attractive. I would recommend this product to anyone with an RV even if you have to have someone install it. The convenience of unlimited hot water is amazing. It shipped quickly too.
Great little unit, does what is advertised and customer service is great. Ordered the unit and was shipped quickly, but upon receiving package noticed it was beat up a little, but I did not see any damage. I installed unit but could not get it to work, knobs kept falling off and had a gas leak . I called the company, they promptly shipped another unit out and I had it in a couple of days and it works great.
it was bigger than I thought, but looks good. I haven't put it in yet so I still need to try it.
Very efficient and powerful on-demand water heater at a great price!Performs better than units twice the price. Highly recommended.
Item was not properly described for install. When trying to return GENERIC BATTERY OPERATED water heater. They would not issue a return label. They hung up the phone on me several times. LOSER COMPANY...WOULD NOT EVER DO BUSINESS AGAIN. THEY SELL JUNK. I will now resort to sell their junk on Craigslist, cause that's where you go to sell junk...
Installed on a small travel trailer... very fine, very hot water has expected. Only question, will the electronics accept rain ?
I made a hot tub out of a Rubbermaid 150 gallon stock tank, then I purchased the AquaKing L6 heater and plumbed it with a 1/2 hp pump and use it to heat the water, I used a Intex 580 pump to filter the water, and for under $400 you have you a hot tub.So far the heater is working great it only takes about 20 min to cycle the water to get hot,Next I will be purchasing a tankless heater for the whole house.
Answer: no