--- In [email protected], "tunecollector"
<[EMAIL PROTECTED]> wrote:
>
> So, in your estimation, they are not ready for prime time yet?
These tankless are small, easy to install and replace. They are
also like heat pumps in that usage better determine what you get.
They will save you money, that is a fact depending on what you get
according to what you need.
One needs to look at what the max need is they want and the min
need and which is the most critical. The cost of the unit compared
to warranty and efficency.
The greater efficiency units go well over a thousand or two. A
unit costing less than a thousand that is not an electric model will
have max efficiency of 87 percent only part of the time and that is
operating flat out with a temp rise in water of only 45 degrees at
max gallon per minute rate flow. So if your water goes in at 45
degrees it can only come out at 90 degrees if running at max if more
the temp will be lower. If low volume usage is mostly done the
efficiency can drop to 80 percent. One needs to know what they need
in order to make a good selection.
Typical flow rates go like this:
90 degree rise for 3.2 gallon a minute, 77 degree rise for 3.7 gal a
minute, 65 degree rise for 4.5 gallon a minute, 55 degree rise for
5.2 gallon a minute, 45 degree rise for 6.4 gallon a minute. Each
unit has different volumes stated with different capacities. A unit
with slow and fast rates at a good efficiency start at over 2 grand
plus.
Personally I think a couple small point of useage units under
the counter for different appliances or uses of a cheap cost quality
would serve me best and probably save me the most money if each was
selected for that specific spot.
....................bob
