In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Radiators piped in series.........
I was at a customer's house yesterday who had an EFM stoker/oil boiler and the whole house had CI rads. He said this system was put in in the late 90s. The boiler he bought used, the radiators were salvaged from several old buildings. This system was piped in copper, and all the radiators were connected in series. My guess is that they were originally two-pipe steam as all of them used a lower tapping, and the upper tapping on the opposite side. With the supply being the lower one and the return being the upper one. Isn't this totally wrong? He said the house has heated well in the last decade, but wow I was under the impression that it was a no-no to pipe CI in simple 3/4" series and shouldn't the supply be the top tapping to force the cooler water out and not just diagonal flow up and out? I just wanted some incite, as I've never seen anyone do this before.
Thanks to the much respected wally wet-heads
Master electrician specialising in boiler and burner controls, multiple fuel systems, radiant system controls, building controls, and universal refrigeration tech.