2. we went home depot, he bought steel studs, now some other friend of mine is saying, wood studs are better, because they are solid, steel studs are very light, also hanging/mounting stuff later will be problem, I didn't realize that.we didn't discuss earlier like studs will be metal or wood, I never thought of going so deep.so my concern is in such type of dealing can I ask him(Contractor) to work or use material of my choice or not.Thanks

Depending on your local building code, you might be able to do something like sheet metal panels on the wall behind the kiln, instead of brick. 

Eliminating the leaks from dirty coils and more is worth it.  

well how about  taking a metal cloths hanger and sticking it straight into the powerhead and taping it directly to the 220.. now thats crazy. cut water meteroff run garden hose directly to house with enough wasted water to create a draught.wife rents to this nice hair dresser who they pay like a slot machine.. next thing i know ATF is calling me the boy friend that moved in has shot and killed someone  ... and of course we all have the tenants that destroy your house..

I now have a new metal building with a driveway and a beautiful sidewalk. 

It happens all too often where people will buy a property together, and one partner says man this isn't what I expected, and the other is pedal to the metal ready to buy every piece of real estate he can get his hands on, and they don't know how to break up their operations or compensate someone who wants out. 

The water collection could be a shallow metal pan hung under the shower floor.  

I have a single family home on over an acre of land, a 24x30 metal shop, insulated portable storage unit & an un insulated storage area.  

Hint: They were not heavily leveraged and had a rapid exit strategy from their leveraged positions.Consider precious metals.

At least that's what the plumber's metal detector looking tool was reading.