"Pete C" wrote in message
...
On Thu, 16 Sep 2004 19:00:42 +0100, Andy Hall
wrote:

That 18lpm is at 60°C though and the store is 60l, which is enough to
fill a bath in 6 mins.

That depends on the temperature of the cold water. If it's 5-8
degrees as it would be in the winter, you won't have put enough in
before the store runs out.

Should just do it, the 60l at 60°C in the store will give 100l of
bathwater at 38°C, leaving 60l of bathwater required for a 160l bath.
The 28kW boiler will give 10l/min at 38°C, so would take 6 minutes to
heat the rest of the bathwater.

Leaving aside the type of heater;-

I have a "ComputaShower" computerised bath filler;
The system mixes hot and cold water precisely and fills
the bath to a preset (constant) level

I've experimented with filling the bath with differing
temperatures; it's anecdotes not data, but;-
This 43deg C bath is too hot ..
This 38 deg C bath is too cold
This 41deg C bath is just right ...said the little bear,

--

Brian