On 14/12/2018 09:34, Tim Watts wrote:
On 14/12/2018 08:04, Jim K.. wrote:

The only disadvantage is that you have to shift more water to run the
hot though - though with a tank, you can add a circulation device which
primes the pipe - rare but exists in places where the owner is big on
not wasting water.


...but small on not wasting energy :-)


True that too...

No too bad if you lag the circulation loop well, and have a timer on the
pump to limit its operation to "likely" times of days. Also the heat
loss is into the fabric of the building, and so offsets the load on the
heating in the winter.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/