In message
,
harry writes
The feedwater temperature is between a rock and a hard place. Cooler
is better for the pumps.
But hotter is better for boiler efficiency and dearation of the makeup
water.
The boiler feedwater tank needs to be as high as possible to minimise
possible pump cavitation.
I'm following the mention of the Gifford injector which has no moving
parts and no cavitation.
--
Clive