beenthere

Are any of those wholesalers?

beenthere

OP.

I doubt anyone of us that actually knows the wholesale price (that we pay). Will tell you.

Yoyizit

Just answering the question:
"Is $4900 a reasonable wholesale price for this boiler, etc., ?"
may be good enough.

The stuff I dug up seems to say "No. It's too high."

beenthere

Since you have no list of material he is being supplied with. You have no idea what the wholesale price is.

Or, if you have a list. Post this list of material. With the prices of all items.


PS: 3 pass boilers aren't cheap boilers.

Yoyizit

"This is what is today known as a three-pass boiler, the fire heating the underside, the gases then passing through a central square-section tubular flue and finally around the boiler sides."

from

http://en.wikipedia.org/wiki/Boiler_(steam_generator)

beenthere

Thats close, but not quiet a full answer. that is a description of one style/configuration.

Yoyizit

Wiki is open for editing; you should add stuff. That's how they get their material and you are certainly qualified.

I've seen poorly written articles on electricity/electronics but I haven't yet taken to helping these guys. . .

beenthere

I though about it several times on several things they have screwed up.

tk03

Sizing steam radiators follow link below.
http://www.comfort-calc.net/tech_are...tm#SteamBoiler
than choose sizing steam radiators.
I agree with Beenthere, there are too many variables for plotting. How do you count for higher efficiencies, quality design, improper as compared to proper sizing, buying power and material?
Your definition is close enough to be correct. The heat goes back from the burner, goes up and comes front in the horizontal flue passes and turns to the rear through other horizontal flue passes.

Yoyizit

Thanks for the link.

I assumed furnace output and price were the main things that should correlate well and that are important to the HO.
If I could get data, I'd also plot reliability vs. price.
These two graphs would probably show 90% of what is important to the avg. HO, and they boil down to initial price and cost over time. This is assuming equal comfort levels, and I don't know how to quantify 'comfort'.

If the scatter plot has points all over the place so that it is useless [correlation coefficient less than 0.5] , then I'd look for subcategories to graph, hoping to find a clean straight line that I can use to predict.

In this example

the correlation between the two columns looks lousy on the graph, but it's still rather high, number-wise [0.88].