Having seen the discussion about a new group on heating and that many of the current experts monitor/use this group, can I ask a question of an HVAC expert.
Our church has Delchi fan assisted radiators (model CV) which have the facility for three speeds (although whoever installed them did not include the switch!).
I have done a web search and can find no information and would like to add the switches - they appear to be 3 way double pole but I know no more.
Anyone out there who can help?
Thanks.