by db1979 » Sat Mar 07, 2020 5:51 pm
A radiator setup will only ever get you within a certain temperature of ambient air temperature. What is important is consistent temp in your cooling. So long as it does that then it's working. When you say it's not cooling, is it keeping temp constant or is it gradually rising?
I recently made a change to my system and I've got some more work to do on it but before I stuffed with it I was getting stable temps just above ambient. I run a twin fan radiator with a 40 W fountain pump that sits in a 10 L reservoir. I've tried to maximise the diameter of my cooling lines wherever I can, with at least half of it being 32 mm wide, the rest is 19 mm.
At the moment I've got my radiator sitting too close to the shed wall, and the warm air ends up recirculating through it too much. I've got plans to make it mobile with modular plumbing to move it outside the shed. Space is a premium for me, so a radiator is a good solution.