1st Cont. Circ. Job

G. Gibbs

I thought y'all might like to see a pretty cool retro from electric baseboard to continuous circulation with panel Radiators, baseboard and even a little staple up,we used a 260 Tekmar to control the Hot Water Maker and vary the water temp based on outdoor temp. The staple up is controled by a Oventrop Uni-Box Plus. The Mech. on the job was Rich with Riddle Mech. He is a former Red Rocks Student of Mark E.
I have never posted pic's on the wall b-4 so I hope this works...I will send more pics.
The job is now up and running & working great.

Steamhead

Whose boiler

did you use? Looks like a Slant/Fin but I can't tell for sure.........

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Uni R

The pictures came out very well. You're given me rad envy!

G. Gibbs

Slant/Fin CB-90

In retofits(or any job), it is fun to put in a boiler that you can turn the BTU'S down (and up) on. We tell contractors to set up these boilers well below the calculated heatloss, we crank the boiler as low has we can...we know we can always come back and turn the Boiler Back up...WE DO NOT LIKE TO WASTE BTU'S UP THE STACK! Greg

G. Gibbs

Radiator Envy...

It is good to know someone has a little "Radical Envy"...
These Rad's are made by Dianorm. They seem to have thought of everything...as you can tell the tappings are
on the lower bottom of each rad, it makes for a clean piping arrangement.
Dianorm also furnishes a "rough-in" template with it's
product that takes the guess work out of positioning the piping. The template also has has a built in "U" tube that
can be hooked up to the systems piping, it lets the you pressure test the system, and install the the rad's after all of the other trades have left the job.
Thanks for the "Rad" envy! -Greg

Mike Kraft

Nice job Greg

Thats a fine way to start it out!Great comfort.One minor thing:)............the primary pump.Check out the attached PDF file and look @ the positioning pics.

Keep it up........looks like you payed attention to the professor!

cheese

G. Gibbs

Cheese

Thank you Mike, Greg

Tom M.

Possible concern

Greg, I have a concern about the placement of the Tekmar sensor which may or may not be relevent.

If the radiator valves are capable of completely stopping the flow through them and all the rooms are satisfied at one time, there will be no flow past the sensor and the boiler and bypass loop will go to high limit. You might want to move the sensor to the outlet of the circulator before the bypass tee to get an accurate reading at these times.

If the valves only throttle the flow down, then it shouldn't be a concern.

P.S. I, too, have radiator envy.

Steamhead

Thought so- Looking Good

Can't say I have radiator envy though- my house is full of old cast-iron American Peerless beauties!

The concept of using one boiler to fill a range of ratings isn't new. Check this out- it's from the 1929 Ideal Fitter catalog from American Radiator Co. Note how the Arco Round Boilers can serve a range of different amounts of radiation- and that their efficiency (which wasn't great to begin with) drops noticeably as the radiation load increases.

ME, you have taught them well. Look out, Dave Lennox!

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G. Gibbs

Temp. Sens.

> Greg, I have a concern about the placement of the

> Tekmar sensor which may or may not be

> relevent.

>

> If the radiator valves are capable

> of completely stopping the flow through them and

> all the rooms are satisfied at one time, there

> will be no flow past the sensor and the boiler

> and bypass loop will go to high limit. You might

> want to move the sensor to the outlet of the

> circulator before the bypass tee to get an

> accurate reading at these times.

>

> If the valves

> only throttle the flow down, then it shouldn't be

> a concern.

>

> P.S. I, too, have radiator envy.



Tom,thanks for the heads up... I I'm always learning something, & when I read your not I said to myself hmmmm?
What does Dan say, Maybe & I'll get back to you.

G. Gibbs

Temp. Sens.

Tom,thanks for the heads up... I'm always learning something, & when I read your note I said to myself, hmmmm?
What does Dan say, Maybe & I'll get back to you. Next job I will place the sens, b-4 the by-pass just in case, however w/ trv's you can almost bet that at least one will be is some state of open, I can see that we may have a proublem in the spring or the fall... I will find out. thanks. Greg

G. Gibbs

Boiler's Btu range...

Thanks steamhead! the cool thing about the Slant/Fin CB's
is... all you have to do is turn a little knob to adjust the Input.
You are correct, 'ol cast iron rads are pretty "hot"
Greg

Uni R

Greg, where did you get those Dianorms? Are they easy to come by in North America? I looked at their web site and remembered that I don't speak german. Are those T-Stats on them Oventrops?

Now I hate my baseboards even more! L

GW

thought

Since we're getting all technical, should the circ not be inverted like that?

Very nice installation!

I've been a rad lover for years now

Gary

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GW

thought

Since we're getting all technical, should the circ not be inverted like that?

Very nice installation!

I've been a rad lover for years now

Gary

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GW

thought

Since we're getting all technical, should the circ not be inverted like that?

Very nice installation!

I've been a rad lover for years now

Gary

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G. Gibbs

Dianorm & Oventrop

Uni, there are many rep's now around the U.S.A., let me know what part of the country you live in and I will find out who your rep is. I happen to Know the gentleman who has brought both products to America, Greg

G. Gibbs

Circ.

You are correct... the pictures where taken early b-4 a few things where changed. good catch!