Tankless water heater
For those who dry camp I have done field testing on a new tankless heater for Truma corp. Test unit was installed in the spring and I used it several times throughout the summer. They are on the marke...
Forum Discussion
Just did some research on the unit and may have some answers to some concerns.
Fluctuating water temp ~ the unit has a variable heater and mixing valve to deliver water at a constant 120 degrees regardless of incoming water temp.
Pipe sizing ~ The unit requires a minimum of 60,000 BTU/H. The standard 1/2" line on most RVs is large enough.
Cycling ~ The unit will not cycle off until you reach less than .5 gal/min flow. Every shower head I could find specs on was well above that number.
Time for heat ~ the unit has two settings, one for economy which keeps the water in it heated to just above freezing and a normal mode which keeps the water in the unit at 120F.
Tankless water heaters have been shown to save about 22% over standard heaters. Remove the electric option and consider how much propane you use to heat water and make the call for your personal situation. I can't locate a retail price but similar units are $1100 and up. More of a comfort option than a cost savings IMHO.
YMMV,
Jim
Fluctuating water temp ~ the unit has a variable heater and mixing valve to deliver water at a constant 120 degrees regardless of incoming water temp.
Pipe sizing ~ The unit requires a minimum of 60,000 BTU/H. The standard 1/2" line on most RVs is large enough.
Cycling ~ The unit will not cycle off until you reach less than .5 gal/min flow. Every shower head I could find specs on was well above that number.
Time for heat ~ the unit has two settings, one for economy which keeps the water in it heated to just above freezing and a normal mode which keeps the water in the unit at 120F.
Tankless water heaters have been shown to save about 22% over standard heaters. Remove the electric option and consider how much propane you use to heat water and make the call for your personal situation. I can't locate a retail price but similar units are $1100 and up. More of a comfort option than a cost savings IMHO.
YMMV,
Jim
