Best Of
Re: Gas fired boiler no heat
@Doegirl There should be some directions on the side of your unit that you can follow to light the pilot and start the burner. Are they there or have they been removed?
Intplm.
Re: PEX-AL-PEX vs oxygen barrier PEX
The best way to reduce noise, no matter the setup is to run a good outdoor reset. If the loop temperature doesn't change much, there is no thermal expansion and no noise.
Kaos
Re: Restoring One Pipe -- finally
There's something called entrainment where the droplets stay in the steam train until they're physically separated from it, such as going around a bend and hitting a pipe wall. That's the idea behind the header. But how much separation occurs depends on the velocity at the point of separation and the size of the droplets.
Have you ever put a sight glass on your equalizer to see how much water is coming back to the boiler from the header? If you haven't, that's going to be my next project.
Re: New boiler - pipe noise / surging
Yes, sorry what I meant was cold skim → drain → fill → hot skim → drain until water level is at the target line. Sometimes it's hot skim first. Doing this once a day for a few days. Also going to have the installer come take a look.
Re: Pump insulation
In chilled water systems it's to prevent condensation and hazards. HW systems I see no return on investment.
pecmsg
Re: She canna take any more, Cap'n! She's gonna blow!
let's come back to what Ed defined on pg1, "drain the tank", but you should open up that second port on the filtrol, or somewhere there, to let air into the tank as it drains, otherwise it's a straw with a finger on the top end holding back water,
Are you sure you had all the water out when draining prior?
neilc
Re: Thermostats w/ Device Usage Log Feature
I have two Ecobees running two oil boilers, and love them. You cannot get run time off the thermostat itself, unfortunately. You must use either the phone app or a web-based computer app called beestat.io.
But I would still highly recommend the Ecobee. Extremely well designed and thought out, and the monitoring apps are terrific. I would not recommend the Nest as it does not allow the user to program some important parameters like swing (differential). Also, we've had numerous reports here of users having problems trying to wire their Nests correctly.
jesmed1
Re: Bypass for a Buderus G115/3 boiler?
All CI boiler MFGs use a 1.15 PU factor. The system holds a lot of water. They all say to use a larger PU factor if the system contains excessive piping which this system does.
If it were me I would use 2 boilers each sized to 80% of the heat loss and tie the two systems together. On a cold start both boilers would fire then dump the lag boiler at 125 system temp.
Re: Wine Cellar - A Fun Question
Go with chilled water. You will need 35 supply 45 return to make it work
Re: Oldest Boiler
My customer in NE DC is definitely thinking about keeping her 100+ years old identical Bryant gravity boiler for another 100 years. I wish I had a picture with me to post.
