Security Seal Facebook Twitter GooglePlus Pinterest Newsletter Sign-up
The Wall


Joined on October 13, 2004

Last Post on April 24, 2014

Contact User

Recent Posts

« 1 2 3 4 5 6 ... 110 »

More info.

@ March 30, 2014 11:00 AM in Navien 100,000 btu heating

What's the circ on the primary? Assuming the 011 is on the secondary.
I would trust calculated pump curves before gpm read out.

What's the takagi output?

1" copper will carry 72k with proper design flow rates, more if that's exceeded.

How is the snow melt operated weather responsive, manual?

11 loops each covers 168 sf. Loop lengths?

What's the deltas on primary, secondary? I would assume very wide.
At 5gpm the delta would be 74*

At 18.5 gpm the delta would be 20*


@ March 30, 2014 12:42 AM in Navien 100,000 btu heating

Is what ice is talking about he's just using an electrical resistance example. The bigger the pipe the less pump energy needed. It's not all about the btus pipes can carry. It's also about moving those btus efficiently through the pipe from point A to B.

Water, electricity, gases, and even vehicular traffic have certain parallels. That's the highway they travel.

Floor output

@ March 29, 2014 6:32 PM in in floor heat with a cast iron boiler?

Another option is radiant ceilings which will actually have more output. Give it some thought if you are removing ceilings.

DHW Preheat

@ March 29, 2014 12:06 PM in Radiant Roof snow melt ??

Reverse the operation with that setup in the summer and take advantage of the hot roof. May get more than Preheat out of it.

Recoup some of the expended energy cost during the winter to free solar energy in the summer. Roof decks can get to 110-120* in full sun.

Propane usage

@ March 29, 2014 9:26 AM in Infloor Radiant Heat issue

Have you compared that with the low electric bill time frame?

Agree with Eastman.

Heat loss

@ March 29, 2014 9:21 AM in in floor heat with a cast iron boiler?

Do one to make sure radiant floors can do the job on their own with out supplemental.

You will have to decide the type of radiant floor detail. Over the top sandwich, or under floor.

It may be helpful to pin down type of base board, and how many feet in each room as your gutting the system.

Sure the boiler is not damaged?

It's done all the time

@ March 28, 2014 7:26 PM in in floor heat with a cast iron boiler?

Just need a mixing valve.

What are the existing emitters ?


@ March 28, 2014 7:18 PM in Ideas for 1860's unheated farmhouse

Most definitely


@ March 27, 2014 11:38 PM in Ideas for 1860's unheated farmhouse

Thought about addressing it??

If room by room heat losses are coming in in the 7-10k range zone carefully. I would NOT zone each, and every room.

Think about your loads and zone to prevent short cycling.

I don't think I would bash mini splits to the degree you have they can be quite efficient, and solve many ducting hurdles. If the owner is from Hawaii should be use to the look of them.

Hot Rod

@ March 25, 2014 5:43 AM in System Fluid Experiment..

I think Hot Rod did a training setup with clear piping etc.

sawzall surgery

@ March 24, 2014 6:01 PM in Radiant

In my opinion. You could have another thread runner talking about everything wrong with this setup.

One thing it does not lack for is temp gauges.

The key

@ March 23, 2014 11:11 PM in Vibration after pipe change

To any noise is isolation, and or insulation.

Isolation meaning not touching anything and where it does it has an isolation cushion.

Insulation means well you know.

Pipe noise

@ March 23, 2014 9:26 PM in Vibration after pipe change

Usually if pipes are touching the structure there will be noise transmission. Expansion noise, vibration etc.

Could also have debris in the system from pipe work. More than likely the plumber is correct in that the pipe in the wall may heave moved, and is now in contact with framing.

Usually if there is a problem that did not exist prior look toward what has changed since then.

some links

@ March 23, 2014 8:11 PM in are asbestos risks overblown?!OpenDocument

Google it

Come on

@ March 23, 2014 5:34 PM in are asbestos risks overblown?

Don't be narrow minded about this. I think your wallet is trying to take over your thought process. Don't mean to be rude at all. Just trying to be firm.

So lets say you have Mr skilled labor tear it out. He gets dust fibers all over. Who will come across these later on?

Now Mr. skilled labor has to get rid of the product. What throw it in the trash so the next scraper digs through the garbage gets contaminated. Along with the garbage man that cycles the load and spews asbestos fibers all over the neighbor hood. Then there is the guy at the land fill while he is dozing off piles of garbage, and the mechanic who may be exposed working on that dozer.

Lets think about everyone involved now.

Let alone the fine if you get caught by the EPA. You could have it professionally removed about 100 times over.

delta t

@ March 23, 2014 3:59 PM in Radiant

thats what I thought. Radiant does not appear to be like the other.

Talk carefully about specific companies they lurk here.

Generic website

@ March 23, 2014 11:28 AM in Radiant

Are you actually tying this to that website? Or is this a generic internet radiant company claim.

Thanks for sharing

@ March 23, 2014 11:19 AM in are asbestos risks overblown?

Mad Dog, hell of a personal experience to share. Kudos to you for walking away, and having the education to make that decision . Some people are not so lucky as you pointed out.

When your young, dumb, and think your indestructible is what will get you later in life.

All the things the old timers tell you not to do that seems trivial . When you get older you wish ya would have listened.

Jack hammered floor

@ March 22, 2014 7:23 PM in Radiant

Rob that's the drain for condensate.

That's a 7/8 pex that they just love to sell.

I agree with Rob you'll never be a hero for what it will cost to right this wrong.

I will add

@ March 22, 2014 12:58 PM in Warmboard on slab versus PEX in slab

Since it's geothermal you should be a with in reach with supply temps to the slab. But then we don't know your heat loss to the space. Also keep your loop lengths with in reasonable design lengths depending on the dia pex you use.


@ March 22, 2014 12:50 PM in How should I insulate this tank?

Would it be easier to create a room around the tank to isolate it, and concentrate the partition walls as the insulating medium to the tanks?

If the tank was not previously insulated just about anything is a step up.

You really have not mentioned the purpose of the whole system.

So Bill

@ March 22, 2014 9:13 AM in are asbestos risks overblown?

By trying to take away the seriousness of the substance with your post. What are you suggesting?

This Lawyer may be your brother, and you may trust him, but when it comes to court all bets are off. He plays the seriousness down from what he sees in the court rooms winning, and lossing.
« 1 2 3 4 5 6 ... 110 »