Best Of
Re: 2 pipe with traps on rads. Where to set metering valve?
The work fine on a conventional two pipe system. Just adjust the metering section to suit the system working pressure, that's all.
Re: Paint on inside of fireplace box
Find a restoration company that sand blasts with walnut shell to remove the paint then get a mason to install a damper and inspect the chimney. Changing the size of the firebox by relining with firebrick could change the drafting up the chimney .
gunn308
Re: How to pitch this beast radiator
Make sure that the valve is fully open. If you still cannot get heat I would take the top of the valve off to make sure that there is no restriction in it. These valves will sometimes break and the parts inside will restrict the opening.
Re: 2 pipe with traps on rads. Where to set metering valve?
I am going to chime in here late regarding the TRVs. We have a 2 pipe vapor system and I have been thinking about the same thing as OP, installing Adjustable Orifice valves from Mepco (currently have Steam Radiator Inlet Orifice Plates only since all but one of the original adjustable valves have been replaced sometime over the last 100 years )
I was considering TRVs as a more comfortable solution but started thinking about it.
Using a TRV with a vapor system with our water "traps" could allow too much steam into the radiator.
So fixed orifice plates set to 80% of the radiator capacity must be installed along with TRVs to avoid steam passing thru the radiator.
Re: How to set valve on expansion-tank loop
I don’t think there is a correct answer to this question?
hot_rod
Re: From Tankless to Boiler
Do NOT go to 20% glycol. 25% and below is prime grounds for bacterial growth and it does deteriorate over time, so I'd stick with 30-35% if you're not going to use just water.
GroundUp
Re: Navien combi-boiler motorized threeway valve replacement
You paid for a lot more than just a valve. You paid for his experience to be able to diagnose the problem and source the correct part. More than likely they bought the correct part form a source a lot more reliable than Amazon and certainly paid a higher price for the part. Be thankful that they fixed it on the first try.
Re: Airplane take off!
Why and how much do you turn the thermostat down each night? Steam radiant heat works best by maintaining a consistent setpoint.
Neild5
Re: Axiom tank is getting low
Call the plumber who installed the system. He will know exactly what you should do.