Best Of
Re: hydronicshop.com
I prefer to get everything at the same place. Finding a deal for one or two items at one place and another deal at another place and so on… then needing to purchase everything else at another place is just time consuming. Get the best deal at a one stop local supplier is less expensive in the long run. I had better things to do with my time, like getting the actual work completed.
Re: The Master Steam Trap Mistake: Why It’s Costly, Dangerous, and Outdated, this weeks video
I loved the video Ray Ray..mad Dog
Re: NJ Boiler replacement decision points...
So I used 55° incoming water temperature, raised to 110, which is about as hot as you could run to a faucet. You could go online and determine the city water temperature high and low probably.
Wintertime water in Phoenix runs around 80°, in Milwaukee down to 35- 37° in above ground water towers.
The only way to get 90% plus is if the boiler is running a low temperature 130 or lower so it condenses. What temperature do you run the Munchkin?
Since the boiler kicks up to 180° for hot water production, 85-87% efficience in that mode.
With a combi the boiler heats water instantly, so no need to calculate gallon like an indirect.
At a 3 gpm flow it could run now until the end of time and produce 110° hot water. It works much like a tankless water heater.
hot_rod
Re: Ignition transformer insulation (Navien)
Item 19, Flame Rod, shows it comes with the gasket. They should supply 10 with every Flame Rod because they fall apart if you breathe on them.
HVACNUT
Re: new concrete slab with radiant heat that will be polished for finished flooring
Just to emphasize a couple of @hot_rod 's excellent summary. He's right. Fibers won't be a problem if you power trowel. You won't notice them. And use enough. Also, his comment on don't add water. Just don't. As he says, if for some reason you need it to flow better, specify adding plasticizer — and let the ready mix company do it.
Last tidbit. Keep the concrete moist or at least damp for at least 72 hours. That is really truly critical, and a lot of the problem surface cracking one sees is from not doing this. Perhaps I can explain why. Cement is the binder in concrete — it's what sticks to the aggregate and holds it all together. Cement does NOT dry. It cures by reacting with water to form a crystalline solid. This takes time — and enough water. If there isn't adequate water, not all the cement can react and the cement won't cure. This is particularly true at the surface of, for instance, a slab. Too much water is almost as bad. Concrete mixes are very carefully designed!
Re: Ignition transformer insulation (Navien)
I have never seen anything like that on the inside of an ignition cable connection. Is that really an original equipment part (or substance)? I would not use that stuff in making a connection to the ignition system. The innards of that wire and connector boot should make a metal to metal connection without any fibrous fungus inside it. That is just my opinion.
Re: Anticipator setting for my steam boiler
For steam heat with cast iron radiators you want a relatively long cycle. It needs to be long enough so that steam reaches all rooms before the burner shuts down. You may have to experiment a bit, but a higher amp draw setting giving less anticipation is probably what you need.
bburd
Re: Tomorrow is Install Day!
remember to take care of the install people.
plenty of water
A cold one after they’re done is always appreciated
pecmsg