Visual illustration of paying oil company to vent your mains

vvzz2

My Gorton no2s(and some no1s) are here. But before I put them on, I wanted to collect some data. And what better tool to se inside the pipes than a thermal camera. Here’s a short video I took - you can almost feel that steam struggling hard to push all that air via the radiator vents
https://youtu.be/taRBoh5Ql-U

Big Ed_4

While your at it........ insulate your mains

nicholas bonham-carter

Excellent and informative video, which should be seen by anyone with bad main vents!—NBC

vvzz2

And here’s one trunk main after adding 3 gorton #2s. Huge difference in my opinion. And I haven’t installed the vaporstat or lowered the pressure yet.
https://youtu.be/n5By2ALWsbc

I will continue reporting as I take further steps. I hope this information is useful

Steamhead

Impressive! Did you time how long it took for the main to heat to the end, before and after?

vvzz2

Not for that main. I was too eager to install the vents. I have 4 more mains to go, so I’ll time them.