Best Of
Re: New Century House with Two Pipe Steam - Questions
You can try some penetrating oil on those valves. Take it easy to try turning them.
Take care with them, new regulating valves are very expensive.
Re: Lochinvar NKC150N - DHW High Temp Issue
the installation manual mentioned the need to install a DHW mix valve, field supplied.
The red and blue pex piping above the boilers should allow you to easily cut in mix valves? The do not need to be under the boilers should allow.
hot_rod
Re: OWB and Vitodens
Disconnect aquastat from DE1 and reconnect in the TT circuit between the switching relay and Vitodens. The circs will all still operate as intended but there will be no signal to fire the Vitodens unless OWB falls below setpoint and closes the circuit. Easy peasy.
GroundUp
Re: Wifi replacement for aube telephone controller ct240
I'm unaware of an internet accessible thermostat that can do that specific task across several units at one shot. You might be able to replace just the CT240, depending on how it connects to the other thermostats. If all you need is contact closure to change modes, https://controlbyweb.com/ has a WebRelay that, well, is a relay that is internet-accessable. You could also just use the G terminal on a regular WiFi thermostat, just use the app to turn on the fan to close the contact & switch the system to occupied.
ratio
Re: New Return Pipe Noise During Renovation
push that rod thru a couple 2, 3, inches past the boiler jacket,
do both upper and lower valve, you'll want a bucket handy for the lower valve
neilc
Re: xx
Ok check valves are not helping. Install the appropriate zone valve and wire it up. The first two responses provide wiring methods, pick the one you like. Each has advantages and disadvantages.
109A_5
Re: Puzzle: Two Solutions for a Hydronic Systems Flow Problem- Which is Best?
I think a balance valve in each of the supplies would allow you to tune it in. Any idea how many gpm you need to move to the radiators?
Always consult a joist drill chart when drilling structural joists. Seems odd with all the other stuff under the joist that they were drilled? Could have boxed them in along the waste piping if the ceiling is to be finished.
hot_rod
Re: Chart for BTU reduction/increase based on radiator paint?
Here's the US Government's publication on the subject from 1935. Click on the first two words ("This chart…" hyperlink) to see the chart you're looking for.
And remember that the paint only effects radiation heat transfer, with no effect on convective heat transfer. So whatever minimal effect the paint has on radiation is further mitigated by the fact that radiation is only a portion of the radiator's heat transfer mechanism.
jesmed1
Re: Zone Valves BANG on opening only
@EdTheHeaterMan Diagnosied the issue, the current setup isolates the space heat when zone valves close so when any opens water rushes in. This causes high flow rate and the check valve slam shut once the flow settles.
Remove the check valve.
Kaos
Re: What I think
It's a terrible long term business strategy, but they don't care. With private equity, they're trying to juice the company books quickly, and sell it off at a big profit.
I disagree. Scamming the public in all aspects of life is a good business strategy, especially when done with "facts" where the customer is convinced of the new product. I would hazard a guess that not more than 10% of the public would have a conclusion of being scammed. The people we see on HH are a tiny fraction of what is going on in the world.
Once scam after another without ANY CONSEQUENCES to the scammer.
Note that said companies have no ethics or integrity but if you look at the big picture in the USA today, these two character traits are basically gone in most places. The almighty dollar is all that matters. It begins at the top.
LRCCBJ