Hi, sorry for the thread necro!
I just got an HR92 cheap from Amazon Warehouse (£45, damaged packaging) only to find it's missing the base plate. I'm loathe to send it back if I can find a replacement baseplate as it was so cheap.
I note theevohomeshop now sell the M30 baseplate but have also seen mention of the M28. Which is the standard baseplate shipped with an HR92?
All my other units fit our radiators fine out of the box so I'm assuming the standard one will fit the last rad to be converted in our house, just want to make sure I order the right one!
*edit*
Actually, at nearly £12 (with P&P) from theevohomeshop, it's almost as much as a brand new one. Seems an awful lot of money for a bit of plastic. Think I'll be sending this one back to Amazon