Joined on February 27, 2010
Last Post on March 9, 2014
@ August 27, 2012 8:13 PM in removing a 90 year old one pipe steam radiatorThe radiator has a union nut on it right after the hand valve. You can leave the valve in place and install the floor around it.
@ August 27, 2012 6:27 PM in Oversized steam boiler - worth replacing?We do not discuss pricing in public. Where are you located?
@ August 27, 2012 11:11 AM in To chill or Not to Chill, That is my questionThanks for the help.
@ August 27, 2012 10:37 AM in To chill or Not to Chill, That is my questionYeah, that was my concern. I was planning on plating all of the tubing. I guess I'll have to make sure that all of the circuits are high or low enough not to be in the picture-hanging range.
What do you suggest for partition walls that may need wall coverage in both rooms? Do you insulate between the two loops? Should I be insulating inside walls where only one room needs wall coverage and not the adjacent?
@ August 27, 2012 10:24 AM in To chill or Not to Chill, That is my questionI can make the numbers work if I add wall coverage. The customer also has radiant floors that I may need to use for cooling as well. Floor output is only about half of what the ceiling is, though. I'm just worried about having too much tubing in the walls where they are susceptible to nails and screws. I'll be safe if I don't completely secure the tubing in the wall bays? Give them some room to move around?
@ August 26, 2012 11:41 PM in To chill or Not to Chill, That is my questionThat's awesome! Always a cold side of the pillow in the summer.
My particular customer does NOT want to have any noticeble airflow or registers in the house. I'm extremely close to being able to satisfy the entire sensible load with chilled radiant. The latent load is only 3,243 BTUH. I can satisfy the latent load with 40F water at 320 CFM. Spread that over 17 rooms, and the airflow should be a whisper. That also lets me use the chiller for humidity control, saving a whole extra system.
@ August 26, 2012 8:52 PM in To chill or Not to Chill, That is my questionIs there any chart for the cooling ratings of PEX at different spacings? It seems that all chilled panels are 6" on center. I have a few rooms that require more BTUH per square foot than that can offer. The calculations make me believe that 3 or 4" on center will be needed in some areas. Will tighter grouping make a difference?
@ August 26, 2012 8:23 PM in Utica DV-200A will no run with door onAre you pinching the pressure switch hose? Any loose wires?
Is the venting correct?
Are the flue passages blocked?
@ August 26, 2012 12:00 PM in To chill or Not to Chill, That is my questionI am in the middle of designing a chilled ceiling system for a customer. Following this thread like a hawk. I see a lot of great comments here, and hope to contribute my own.
Radiant ceilings with a chilled coil dehumidifier seems like the way to go. I was planning to incorporate a reheat coil off the compressor discharge. What is the practical length of a discharge line?
@ August 25, 2012 3:45 PM in Steam Radiator ExpertHave you tried to Find a Contractor at the top of this page?
@ August 24, 2012 7:16 PM in Looking forAnd this all happened within 24 hours. The Wall really is an incredible place.
I will most definitely post pictures, and my review of the Carlin burner. The job is set for the first week of September. Pretty standard stuff. The piping is actually all correct, and the boiler was even sized properly!
@ August 23, 2012 11:22 PM in Chilled ceiling designYah know...I'm still stuck in my old mindset of "figure it out for yourself". If somebody didn't stop to remind me that I can actually call the manufacturer to get questions, I'd be lost in the numbers forever. My first reaction is to always seek advice from field techs first.
@ August 23, 2012 10:28 PM in The King Of All Crossover Traps!Looking at their charts...
An open 1" pipe flows 11 CFM at a little less than 1/4 PSI.
So, you figure...1 1/4 orifice....1 PSI....
It would have to be close to 50 CFM or more. Holy cow!
@ August 23, 2012 10:05 PM in The King Of All Crossover Traps!What are the ratings on that crossover trap?
@ August 23, 2012 8:50 PM in Have any of you been toldThis is a good reason to become a factory rep. Get paid to stand around and watch people work.
@ August 23, 2012 8:23 PM in No vent systemIf it's too much trouble to cut into the main, I will sometimes add a tee righ after the elbow that drops into the return. A few feet of the smaller size pipe is easier to work with, and less expensive than dismantling the main.
@ August 23, 2012 8:07 PM in Chilled ceiling designI figured that I would't be able to find resources for a residential level job. This customer could be a curse or a blessing for me. Good advice about over designing. I think I'm going to see if I can translate the panel ratings into pipe/spacing ratings. I may even run extra circuits in the walls because he plans on installing floating acoustical ceilings. The only relief I have in the designing process is that the heat gains are so small that I'm sure I will have enough surface area to get the required BTUH.
@ August 23, 2012 7:54 PM in Chilled ceiling designHere's my situation. The guy built his house with absolutely no room for conventional ductwork. He doesn't want to see registers, or feel or hear airflow. And he does not want high velocity. What the hell am I gonna do?
@ August 23, 2012 7:15 PM in convert W-M SGO to gas?Hopefully, he has ;)
It's hard being a contractor, fighting all of the old knucklehead's "wisdom". If you don't know how to do something, bad mouth it out of existence...
@ August 23, 2012 7:09 PM in Chilled ceiling designThis is a residential home. The house is nearly air tight. The cooling basically takes care of people and appliances. I'm aware that we will need a DOAS and humidity control system, as well as condensation, dew point, and maybe window sensors.
I'm looking for the ratings for different pipe sizes at different spacings.
@ August 23, 2012 10:35 AM in Help with near boiler piping!!Double the number 6. Pipe two tees into the header.