This is the setup I have. Put your name on it. LoL
http://s27.postimg.org/4fhf3wykz/Slavo_Images_002.jpg
Works well though I'm finding it collecting some air.
You'll notice the injector valve with an extra tapping, so I'll pipe that to the return side of the pump with a gate valve fitted and see what happens. Hope to have the cylinder fitted shortly.
Thermal integrations deploy the avta....
http://www.heatweb.com/Wood/circ1.gif
Though I was fitting them on complex commercial heat recovery systems long before I noticed them on internet websites.
And very cleverly deployed here by HWAM stoves on page 41..
http://www.deanforge.co.uk/content/doc/lib/622/Hwam_Stoves.pdf[/QUOTE]
Complete madness, when you consider how simple it is for a skilled tradesman to install a gravity system.