Radiant boiler install
- Thread starter newbomb
- Start date
kj_mustang
Well-known member
I can't tell by the picture but are those flow meters on the supply manifold?
mygarageone
Well-known member
Those are Legend manifolds and that's the way they want them installed.
I have the same set up in my garage.
anthony666
Well-known member
nice clean install, but your expansion tank is an air trap
BadgerBoilerMN
Well-known member
Nice "Canadian" Electric Boiler eh? XT should be attached to the bottom of the Powervent. Not a trap so much as poor form and potential for future problems. Dielectrics are overkill.
Neat work.
Neat work.
I understand how one would see this as an air trap, but the Amtrol instructions specify only vertical (not horizontal). I am willing to bet that any trapped air will be resorbed. Given the pressure, if one were to take the time and go through the chemistry calculations, I expect trapped air is not a problem.
Now, there is a shutoff installed directly below the tank. This was put there purposely for easy removal. I am not concerned about the weight under failure.
There was an ulterior motive too. I did not want my kids wrenching on the tank. They can't reach it where it is now.
Now, there is a shutoff installed directly below the tank. This was put there purposely for easy removal. I am not concerned about the weight under failure.
There was an ulterior motive too. I did not want my kids wrenching on the tank. They can't reach it where it is now.
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anthony666
Well-known member
yes sir vertical .. that also includes the fitting at the top .. all chemistry and instructions etc aside .. strictly speaking from field experience, i redid a half dozen of them a week ago in a ten unit condo building that had rotted out from the inside, the four the fittings came off the top were fine
air + water + heat = corrosion
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Was there proper air removal in those systems? And how old were they? After checking the install instructions for this exact model (ex-15) there is a specific statement that says there is no requirement to mount it at the bottom of an air purger.
Now, hanging it down should result in better air removal from the system altogether. But, I have to wonder if it really matters.
Given this thing will likely last many years as is (and wouldn't last 6 months if mine or the neighbor kids pushed on it) I am betting that I will be OK.
If it fails, I will probably mount a new one to the bottom of the air vent. The kids should have more sense by then.
Now, hanging it down should result in better air removal from the system altogether. But, I have to wonder if it really matters.
Given this thing will likely last many years as is (and wouldn't last 6 months if mine or the neighbor kids pushed on it) I am betting that I will be OK.
If it fails, I will probably mount a new one to the bottom of the air vent. The kids should have more sense by then.
anthony666
Well-known member
beats me mate, i didn't do the original build, i went there to fix a t&p issue that turned out to be bad expansion tank
and it's irrelevant anyway .. no purging on earth is gonna get rid of dissolved oxygen .. that's why we have air eliminators in the first place .. any time you have a pipe routed up no way to vent air it's a trap .. fart in the tub, where does the stink go ??
i'd say couple of years old judging by the boilers used .. trinity tx
you got some free advice from guys that do this for a living .. sweat that tee off and put an elbow, and then put the expansion tank off the air eliminator on a length of pex .. easy fix .. or not .. no biggy
jvitez
Well-known member
Very nice looking installation. Congrats on heat!
Keep track of your electricity bills and please post back once you have a couple of months under your belt. With all the amazing information available on GJ, the biggest aspect lacking in this Heating subforum is real world information on heating operating cost. This would be even more interesting as you have an electric boiler. Many thanks for posting, and the pic.
Keep track of your electricity bills and please post back once you have a couple of months under your belt. With all the amazing information available on GJ, the biggest aspect lacking in this Heating subforum is real world information on heating operating cost. This would be even more interesting as you have an electric boiler. Many thanks for posting, and the pic.
Motown 454
Well-known member
- Joined
- Sep 25, 2008
- Messages
- 1,359
newbomb great looking system.
Majordisorder
Well-known member
newbomb, looks clean and simple. I'm dumb on the 9kw rating. Curious as to what size wire and beaker it requires, and btu/hr it can supply.
Newbomb, That's a nice install. I agree with the critiques above about the air trap.
If you have more pics, in the interest of keeping all these systems in one area, please consider posting them in this thread...
"pics of your in-floor heat set ups"
http://www.garagejournal.com/forum/showthread.php?t=49557
If you have more pics, in the interest of keeping all these systems in one area, please consider posting them in this thread...
"pics of your in-floor heat set ups"
http://www.garagejournal.com/forum/showthread.php?t=49557
This is a Thermolec B-9TMB, 30 K BTU/Hr. I had to run 6/2 NM (Romex), because it requires a 50 A breaker. 80' of that was not cheap. It also requires a separate 10 A line for the circ pump. I had a bunch of 20 A laying around, so I used that.
50 A breaker on the main panel, but there is also a breaker on the unit.
BIGSHOT
Well-known member
Hi Newbomb ! How is the Legend Hydronics holding up ? saw yours and I want to order one ...
Thanks for your feedback !
Thanks for your feedback !
JackDiddly
Well-known member
Nice clean install.
But, again the expansion tank is upside down, the rubber bladder in the tank should be on bottom for proper operation and longevity. I don't believe it is 100% necessary to have it tied in with the Powervent, but you will see that in many piping diagrams.
I am not familiar with that unit, but if it has a stainless heat exchanger you are going to get a lot of galvanic corrosion on those dielectrics.
But, again the expansion tank is upside down, the rubber bladder in the tank should be on bottom for proper operation and longevity. I don't believe it is 100% necessary to have it tied in with the Powervent, but you will see that in many piping diagrams.
I am not familiar with that unit, but if it has a stainless heat exchanger you are going to get a lot of galvanic corrosion on those dielectrics.
BIGSHOT
Well-known member
Looking at pictures ... anyone know if RIFENG and Legend Hydronics are the same manifolds ? They look really the same but pricing on the Legend is more expensive ...