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Joined on June 26, 2004

Last Post on May 13, 2010

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@ May 13, 2010 6:45 PM in Mod-con venting beyond 100 feet?

Check out the Smith's GC160 (Embassy Onex). Separated venting, 300 Ft.


deja vu

@ March 17, 2010 6:09 PM in Looking for feedback from this board please

This sounds very much like what happened to Kitec, even to the "defective return" stage. Where's Kitec now? Yes, maybe there were other influences in Kitec's case, but this scenario was a factor, I believe. How sad.



@ January 2, 2010 3:47 PM in Radiant under grand piano?

Grand Pianos need, as I understand, 40-45% RH at all times. Radiant Heat, HWBB, FHA, whatever; watch the RH. I did a music room, one time, in a residence, with an air handling unit, humidifier, evap coil, and humistat. She was a concert pianist and university professor. Things had to be right.
Radiant, alone, without environmental monitors, might flatten your notes.

Smith Boiler

@ December 16, 2009 6:03 PM in H B SMITH boiler

Alan; when was the last time you talked with Kevin? Did you know he is with Sweeney-Rogers now? And, it's Smith Boilers now, not H.B. Smith. o.k.?



@ July 28, 2009 6:57 PM in Grundfos Handbook

I can imagine zone valve manufacturers pushing "a" pump; to boost sales, don'tcha know. Jed

You're headed for trouble

@ July 23, 2009 6:44 PM in Can I put in smaller radiators?

thinking like that. You will effectively oversize the boiler you have, causing short cycling, and costing you more in the long run. Are you prepared to replace the steam boiler to match your downsized radiation load? Even if you don't replace the boiler, and set the thermostat down, the boiler will still short cycle, costing you money going forward. Put one pipe thermostatic radiator valves on the radiators, turn down the rooms not used, or used, and save some money.

Do all 4 pumps run?

@ July 22, 2009 7:11 PM in Primary Secondary Piping?

Do all four pumps run on a call for heat, or are they redundant pumping stations?

Bad Pump

@ June 25, 2009 6:25 PM in New Watts RBFF install

So, please excuse my ignorance, but; what happens in that design if the Primary circ goes bad? Will system circs induce flow through the LLH to the zones? If not, what's the diff?


@ May 14, 2009 5:45 PM in PEX-B pipe manufacturers. Does anyone know who makes it.

Watts Radiant Zurn/Quest Vagaurd(Viega) In-floor/Maxxon Comfort Pro Jed

140 water?

@ May 4, 2009 6:52 PM in Convert from steam to hydronic?

Where did that number come from? And, radiators were usually oversized. Misplaced assumptions do no good! Jed

Trying to make sense

@ April 21, 2009 6:58 PM in MATCHING CIRC PUMPS

Rick, what characteristic of pump performance would the "vendors" want to match? i.e. head vs. flow? And, if you throw in a ^T function, re: System vs. Boiler; well... >>>>>>>>>>>> Low Loss Header!!! With proper P/S piping, I'm a bit confused about "matching circulators". Typically, the expansion tank would be in the System piping, right? Pump away from that point. Some mod/cons have an exp tank on board, but not necessarily large enough. If you have a DHW load parallel to the boiler, then you will have to match the head/flow requirements of the mod/con. If you're talking about matching circs on the "System" side; well that's a different ballgame with reference to the mod/con flow/head requirements. Time for much more detail about the System. You need to get away from the "vendors", and get into the Manufacturer's IOM! Jed

Or maybe

@ April 21, 2009 6:12 PM in enginer jokes

Normal People vs. Engineers Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough "moving parts" yet. Jed

If it's all on One floor...

@ March 26, 2009 6:14 PM in Need advice on choosing the least expensive heating system

I'd suggest a Miller or Nordyne furnace on a cottage base. Doesn't get any cheaper than that. And, you could probably re-sell that set up fairly easily. The venting would have to be looked at carefully, though. Monitor or Rinnai wall furnaces might work, as well. Easier venting with those units. Jed p.s. And you wouldn't become slaves to the cord, as n b-c and Mike suggest. Electric! These people are trying to SAVE for a new home. Geeeeeesh!

Thanks, Craig, Jamie

@ March 15, 2009 5:55 AM in 1-Pipe Steam, 2 Zone Valves

I'll pass those along. I haven't seen this job, but he tells me elevations and pitch are O.K. Jed

Burner Shut Down

@ March 14, 2009 3:33 PM in 1-Pipe Steam, 2 Zone Valves

Hi, all got a call Friday about a Slant Fin steam boiler replacement job. The caller did not do the replacement, but was called in to troubleshoot the system operation. From what I was told, the replacement included installing 2 motorized valves for a duplex building with a 1-pipe system. O.K., 2 dwellings, 2 zones. The Contractor who did the replacement put a check valve on the return. It's a dry return, so he put in in the section below the water line. Of course the HO started complaining. I don't know any more than this. But the troubleshooter, who has limited steam experience, asked me if there was a some kind of time delay he could use to delay the zone valves' closing to relieve the steam generation after burner shutdown. System works fine during steaming and zone call, but hammers after shut down. I told him to pipe a bypass (-3/4") around the zone valves to the mains. He said that makes sense, but trying to do that would be very difficult. He suggested modifying the PRV on the boiler with a tee, and running the bypass from there to the mains. I couldn't think of a reason not to, but now wonder if that is not such a good idea. There is 1 supply riser from the boiler to the header, with 2 main take-offs with the ZV's. But adding a bypass from the PRV might pull wet steam into the mains. In this kind of situation, do the ZV bypasses need to come from the zone main with dry steam? I hope this is clear enough to make sense. Jed Jed

I'm finally responding

@ February 18, 2009 7:03 PM in 37 zones of radiant heat...(JohnNY)

All of this "hot air armchair analysis" means squat. NOBODY picked up on your statement of FACT that this hydronic heating system IS a very expensive "back-up". So, the question becomes; What is the probability risk of this system being employed? You didn't say it was supplemental, but back-up. Being that it is a back-up system, what are the conditions required to bring this system on-line and for how long? What are the emitters for this system, hi-head fan coil units. I don't recall you mentioning what radiation these circs are servicing. Your work is obviously great, but this "back-up" issue has me stumped. What is the anticipated run time of this system? Jed

What a Baahgain!

@ February 18, 2009 6:18 PM in HB Smith series 8 W-5

Sounds like "stolen market goods" to me. What are you looking for, steam or hot water? S/W means "S"team or "W"ater. Jed

What about cold weather?

@ February 18, 2009 6:00 PM in Bacharach Fyrite insight

The question I get most often is: can I leave it in the van overnight? Jed


@ February 6, 2009 5:50 PM in how many will come forward and admit?

Which one are you referring to? I, for one, find it a proffesional obligation. What's this addiction all about, anyway????????????? But, then, I can come up with a lot of excuses for anything.

Very useful, Ed; NOT

@ February 5, 2009 6:18 PM in Williamson Tempomatic

From the serial number, that unit is most likely 21 years old. But then, most contractors, in my experience, don't give those sticky little administrative details a second thought. D88 typically is the key. Jed

Steve, try this out

@ January 25, 2009 3:59 PM in High capacity baseboard

Emerson Swan Rep just showed this to me Friday. Jed


@ January 22, 2009 6:14 PM in ECM PUMPS

I heard today that there can be issues with the Stratos over-pressurizing the return main. Didn't fully understand the specific system where this occured (South Coastal Maine). Any thoughts on this? Jed
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