On Tue, 10 Feb 2004 09:29:19 +0000, Christian McArdle wrote:


It is a TRV. Replacing it might not require draining the system. Most makes
of TRV have replacable heads, which simply screw on to the valve body. If
you can find the make, and the heads are still available, you're laughing.

Ooh - good point - I'd forgotton that option!

Tim