Re:Hot water heater or propane tankless water heater
Hehe, I can answer this one to!
Go google Eccotemp L10 should be a shopping link for Global Industrial pop up.
Costs about the same, way better quality, and designed to exterior mounted so you skirt around interior tankless water heater regulations.
I have installed probably half a dozen of those things and they are pretty sturdy little units. Add in we only use Shurflo 3.3GPM 120V park model pumps, and the pressure needs of the water heater match the pump.
One thing to be noted, tankless water heaters need a certain amount of continual water pressure, and can get angry if they don't have it and will not function correct. Typically when doing a tankless we will use the norm shurflo pump, add a accumulator tank in the line, then put the water heater in. Works great never had any complaints.