Best Of
Re: Another glitch on a steam install
Are those risers bushed down at the outlets of the boiler?
mattmia2
Re: Another glitch on a steam install
yes and yes. It seems like if I goof something up, the demons and vipers are biting at my heels. But when somebody else does a goofy job, everything works out just fine.
GW
Re: Another glitch on a steam install
"works" can have a lot of meanings. I wonder how close the output of that boiler is to the actual connected edr
mattmia2
Re: Another glitch on a steam install
It’s also piped wrong with the main tapped between the risers.
Ironman
Re: Tomorrow is Install Day!
Had to make another quick climb up to install the correct rain cap as they sent the wrong diameter one.
All the ladders are put away. Job done!
Yesterday I removed our coal boiler and started the clean up of the area. Now I will get the new Weil-McClain into position and see how I want to position it and the indirect hot water tank.
Re: Chilling me softly with
Really interesting @hot_rod, we're running a similar trial in our showroom in London. We've been keeping the flow temp just above dew point. It has had a modest cooling effect but the ∆T is so small between ambient and water temp that the we're talking a degree or two of cooling effect. We'd need to add condensate drains and chill the water further, and introduce fans to move the air around in order to get more siginificant cooling.
Would love to hear how you're getting on a month on. Has it had a significant effect? What were the ambient, flow and return temps? What emitters are you using? Is this a radiant floor?
Re: AWHP - Plate heat exchanger or not?
I have an Arctic heat pump, and Spacepak fan coils (which are really just Phnix units from China). When I was shopping 3-4 years ago there wasn't as many options as there are today, but the Arctic has been running well. Their controls are not very good, I use a HBX heat pump controller instead of the factory controller. I'm guessing the Viessmann at least will have much better controls built in. I'm not thrilled on the Spacepak fan coils, the controls are also not very good and I have replaced two 24V transformers in the last 2 years…
If you are interested I have a bunch of videos on my system on Youtube, I did this DIY with some help from my local Arctic rep. Lots of learnings, but we are overall happy with how it all works.
https://www.youtube.com/playlist?list=PLl00MrbmZuKLKTqNBk_HueAszsW1A5CbQ
devvar