jim k Wrote in message:
"Dave Plowman (News)" Wrote in message:
In article ,
jim k wrote:
None of the heat is wasted.
Ergo efficiency is always 100%


Bollox! I want to warm the room not the underdrawing to the boiler
& back....

Then you must thing a rad has hot water in, room temperature water out...


Nope.
You seem to thick pipework to & from a radiator emits no heat...
Especially in draughty cellars..

You seem to be trying to tell me a length of copper pipe is as
good at heating a room as a radiator...


Let's just add (for the prevention of **** poor pedantry) that the
length of copper pipe is only the length between the radiator
valves.. I.e. No silly convoluted messes...

--
Jim K


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