Vito w WPRads and Fl Boxes

Constantin

... as usual, your thoughtful design and implementation shines. The addition of insulation makes this insulation-crazed homeowner very happy (ask my contractor!). Looks like the floor drain could use a bit of a splatter-guard though... I like the floor registers, they remind me of many Euro homes where the chill of the windows is being counteracted by floor convectors.

Your clients are lucky to have you.

Paul Pollets

Finished look

Here's the final pics of the trimout where custom floor boxes were fabricated with steel fin tube, as well as wall panel radiators and a radiant master bath. The vitodens boiler drives the system, which was designed for 140 degree water temps. It was really condensing this AM...

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Dave_4

very nice

Did you strap the vitocell to the wall? May I ask why? (mine is just standing there).

Howie

Nick S

Reset curve?

Very nice install. Do the floor boxes and panel rads run on the same reset curve? Also, how did you size the fin tube since they are not in a conventional cabinet with an open bottom? Please do not take this as criticizism, just curious. Nick S

Constantin

Earthquake zone?

That would be my guess. They're much more concerned about water heaters shifting and toppling out there than we are on the east coast and in the middle.

Mike T., Swampeast MO

Exactly right Constantin! Believe it's mandatory in California. Such is highly recommended here in the New Madrid Fault Zone as well--it [might] be code here, but if so it's not enforced as I rarely see it in new construction.

Will say I never strapped my stand-alone 110-gallon heater, but once its replaced with the 120-gallon horizontal indirect the point is moot...

Constantin

Well,

in terms of bad things that can happen, I suppose the strap-down requirement came from the prospect of regular gas water heaters doing the samba and really causing a lot of grief when the gas lines parted. Presumably,

• the code books were never updated to include the possibility of indirects
  
• it's not expensive to strap things down when you do it on comissioning
  
• having a fresh main wide open from a toppled water heater and flooding your home is not fun either,
  • not only for the contents of your home (soaked)
    
  • but emergency services are going to be irked (no water pressure).
    

At least in this part of Cambridge, where the water main does double-duty as a fire line.

hr

When the earth shakes

mainly they do not want the unit to tip over and start a fire or break a gasline.

But also in the case of a disaster, that may be the only supply of fresh water you have for a while. Best to keep it from tipping over.

hot rod

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Cory_3

ProPress

Great looking pipe job as usual. Was curious what you estimate your time savings to be with the use of the propress fittings on a project like this? How long did it take your installer to pipe the boiler with the propress fittings and how long do you think it would have taken if he had soldered everything? Still haven't heard a bad thing about ProPress except for $ of fittings. Always enjoy seeing pictures of your installations.

Paul Pollets

Labor savings...

30% savings on labor...maybe more when you consider there are never leaks to fix.

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Paul Pollets

Calcs

all radiators (and steel fin tube) were sized at 140 degree supply water and run off the same pump on the same curve.(1.4 in this case) There is a "dimension A" when fabricating a floor box radiator...at least 3" of air space below the bottom of the fin tube. The boxes are 7" wide and 12" deep. We foamed the exterior of the box, after installation to at least R10.

The radiant floor is supplied by the radiator piping using an Oventrop Unibox to mix the temps from high to low, without having to install a secondary mix zone and piping.

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[Deleted User]

A suggestion for your hide-a-vectors...

The factory made jobbies we use have a sheetmetal divider on one side (the OUTward side) of the finned tube to allows the coolest air an undisturbed pathway to the bottom of the fin tube element. It is essentially as deep as the actual fin tube, hangs on the fin tube and has supports every once in a while that go all the way to the bottom of the cabinet to help distribute weight.

I suspect that it has a LOT to do with the rated output of the device.

Otherwise, looks very ARTful :-)

ME

Paul Pollets

M1

We used the SlantFin M1 expansion hangers every 36"....Never seen the divider box. Are these the standard floor convectors available in pre-determined lengths?

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