Recent content by mgrant

BadgerBoilerMN, I'm not sure what you mean by phase change and control problem. For me, the control of the second pump is simple, it's just wired in paralleled with the first. Tom Sawyer, I understand the air problem pretty well at this point. There is a high pressure release valve behind the...

Thank you!

http://www.engineeringtoolbox.com/pumps-parallel-serial-d_636.html Pumps in parallel seem reasonable. I wonder if there's any issue with one being on the hot side and the other being on the colder (more dense) side? http://www.engineeringtoolbox.com/water-thermal-properties-d_162.html So...

I have a wood stove with a wet back. I'm using a Grundfos UPS 25-40 pump to circulate the water. Some of the radiators are not getting hot, particularly the ones far down the line. I had a heating guy look at it and he straight away said that my pump wasn't powerful enough and recommended I...