Portable tankless water heaters....
Could I use one of these to fill a mini bathtub on my patio? I would just like to soak every so often. Many of them produce 2 gallons of hot water a minute...the question is how hot. Anyone know?
Forum Discussion
Roadpilot wrote:
Thinking outside the box I wonder if you could put a submersible water pump in the tub and pump from a full tub into the tankless until the temp reached your goal. The water gains a few degrees rise with every trip from the tub to the tankless to the tub.
Most tankless heaters will not work with preheated water, but some will--they are intended, IIRC, to deal with water coming from a rooftop solar water heating system that may need additional heating. Check the specs.
