Bests & Worsts Reviews from Amazon

Great product but one drawback would be the need to re-ignite burner if you interrupt the flow of hot water.My way around this was to head to my local hardware store and purchase a pressure relief valve (commonly used for hot water tank applications etc.); the problem with these are that they are set to open at much too high a pressure for the Coleman unit (they are normally set at around 75PSI whereas the Coleman unit only produces 5-15 PSI). What I did was disassemble the pressure relief valve by simply unscrewing the mechanism holding the cap in place and replacing the internal spring with a much weaker spring; the pressure relief valve also allows for adjustment by tightening/loosening an adjustment screw. This allowed me to dial the valve in so it is triggered by 5-10 PSI of water pressure. Next what I did was add an on/off valve inline before the shower head (Coleman uses standard size shower threads so head to the shower section of your local hardware store). Next I placed the pressure relief valve to the water output of the Coleman with a T adapter. I then attached a hose to the pressure relief valve and secured the hose to the water intake line all the way to the pump; essentially when you close the valve at the shower head, the pressure in the line increases and the pressure relief valve opens causing the hot water to flow back to the water source. This allows you turn the water flow on/off without having to re-ignite the burner allowing for a much better experience with the Coleman H2Oasis; while the water is switched off you are also recirculating the hot water back to your supply, which if it is in a container, causes the container temp to raise effectively acting as a storage tank for your hot water; when the max temp is reached the burner will shut off but the Coleman water pump will continue to pump the now hot water to the shower head without the need of the burner being lit since the water is already up to temp. Would have been nice if Coleman included something like this out-of-the-box but for ~$40 and a half hour of your time it's not a deal breaker.