On Thu, 02 Aug 2007 23:40:07 +0100, Richard Skeen wrote:

What do people think about using a variable speed pump and temperature
sensor instead of a TMV? Would this approach would also give better
stratification inside the thermal store? How easy is it to find a
variable/multi-speed circulator pump?

Good idea. Yes. Not easy at all :-(

--
John Stumbles

I've got nothing against racists - I just wouldn't want my daughter to marry one