Thermolec boilers - ASME \"H\" stamp?

Ross_7

The "old" Monitron is both UL listed & ASME rated. According to the literature anyway. Nice to see a manufacturer "step up" & make an effort to quiet down their product. I'm glad to see that I'm not the only one think that the boilers were kind of "clunky" while cycling on & off.

Ross_7

Hot Rod, Are Thermolec boilers -ASME stamped?

Hot Rod,
Are these boilers "stamped"? I couldn't find anything in the their literature. TIA
Ross

Paul Rohrs_7

No

They are not ASME rated, and at present they are not UL listed either.

I use quite a few on residential jobs, but anything in commercial applications must be ASME rated in our area.

Paul

Ross_7

Thanks Paul

Thanks Paul,

I wouldn't be able to use one here in MI. Boilers need to have ASME stamping. I'm not sure that I would want to use one if it isn't UL listed at least. I'm sure that it is a fine product, just a preference. How are all of your Lochinvar boilers running BTW?
Ross

Paul Rohrs_7

Lochinvar

They are all running superbly.

I did query the fine folks at Lochinvar about electric boilers for residential applications and they said they have not been pursuing it.

I don't know why the Thermolec isn't UL listed. My friend Kevin Pulver has been quoted as saying, "You can't buy a $10.00 toaster nowadays without being UL listed."

Paul

Ross_7

Slant- Fin

Slant-fin's Monitron is UL & ASME listed, but I'll bet it's noisy. Looks like standard contactors with a sequencer. I haven't been around any electric hot water boilers, just electric steam boilers (Sussmann) & they are very noisy. You get the loud "clunk" when they turn on & off, due to the cycling.

Unknown

Ross

The Burnham Carefree Electric boilers are UL and ASME approved and bear the H stamp. And yes the contactors do pull in rather loudly. They are also in stock and ready to ship.

http://www.burnham.com/carefree_boiler.htm

Glenn Stanton

Manager of Technical Development

Burnham Hydronics

U.S. Boiler Co., Inc.

Ross_7

Carefree

Hi Glen,
One of my suppliers, First Supply of Green Bay, WI, handles all three. Burnham Carefree, Slant-fin Monitron, and the Thermolec Boiler. Some folks may be able to tolerate the extra noise, but If I was looking at installing one in our camp in the not so distant future, I wouldn't be able to sleep (light sleeper) listening to the contactors turn on & off. If these types of boilers are going to be used more in the future, then the manufacturers should look into "silencing" these boilers a little better. Hot Rod said that the Thermolec's are pretty quiet, but without the proper stamping & UL listing I won't put one in.

hot_rod

Look at the Electro Industries brand also

They have the H stamp welded on to the HX. Nice control package with an optional zone or pump relay board. Nicely built, in Minnesota.

www.electromn.com

hot rod

Mike Dunn

electro boiler

I have used these boilers too on smaller heat load projects. Noise has never been an issue.

Bob Flanagan_3

NEW Slant/Fin Monitron

To All:

Slant/Fin will be introducing a revised version of the Monitron Boiler. We have addressed the noise issue and the new boiler has a very faint click when the contactors pull in. With the cover on the boiler, this sound is barely noticable. The New Version will be shipping this summer.

Thanks to all,
Bob Flanagan
Director of Sales
Slant/Fin Corp.

Paul Rohrs_7

Bob

Is this an ASME model and is it UL listed?

I have not researched the older models, but what KW ratings will the new model be available in?

Bob Flanagan_3

Answer to Paul on Monitron

Paul:

Yes, the boiler is both UL and ASME approved. It is much quieter. Yes, Ross I believe is correct, the older designs definitely had a "clunky" noise to them when cycling on and off. Probably the biggest negeative to the design.

If I can help anyone out with more info, give me a call at 516-484-2600.

Thanks,
Bob F.

Blackoakbob

electro boilers...

I can agree with Paul about the Electro Boilers, they are first class all the way. Very quiet and very well constructed. With the choice of electronics, the built in indoor/outdoor controller and the outlet temp control they fit any application residential or commercial. I use them all the time, good factory assistance. You shouldn't have to wake up each time your boiler stages on. Best Regards.