Can anyone explain the difference (if any) between the following two Guardian valves:
http://www.guardianstore.co.uk/heat...es/smartzone-22mm-2-port-motorised-valve.html
http://www.guardianstore.co.uk/heat...es/smartzone-pro-22mm-2p-zone-valve-comp.html
I'm looking for a valve to be used on new underfloor heating added to an existing central heating system. The plumber doing the work normally uses Honeywell, however the Guardian Smartzone was recommended by someone on the forum, but there are a couple of choices.
The comparison facility on the Guardian website is useless, or there are no differences!
http://www.guardianstore.co.uk/heat...es/smartzone-22mm-2-port-motorised-valve.html
http://www.guardianstore.co.uk/heat...es/smartzone-pro-22mm-2p-zone-valve-comp.html
I'm looking for a valve to be used on new underfloor heating added to an existing central heating system. The plumber doing the work normally uses Honeywell, however the Guardian Smartzone was recommended by someone on the forum, but there are a couple of choices.
The comparison facility on the Guardian website is useless, or there are no differences!