On Mon, 27 Oct 2008 09:58:41 +0000 (GMT), "Dave Liquorice"
wrote:

On Mon, 27 Oct 2008 08:16:44 +0000, Rod wrote:

There's a white plastic pipe between the oil tank and the boiler. I
want to clip on a flow meter to measure the oil actually being
consumed at any one moment. Is there such a device?

Are you sure that is a plastic pipe - rather than a copper pipe with a
plastic coating?

I think he will find it;s is plastic coated copper. Plastic pipe
containing a flammable liquid in a fire ...

Anyway I doubt very much that a clip on flow meter exists. I can't think
of any physics that would allow the measurement of the flow of a
homogeneous fluid without something actually in the that fluid. There
*might* be something, maybe based on doppler,

Doppler. That's what I've seen on the web. But EXPENSIVE!

MM