That would depend on the developed length and the local code and the specific graviety of the gas
Yes, you will need commercial building insurance in order to protect you from incurring higher cost later on as well protect you, and your renters. Normally you will need fire and theft insurance amongst others.
A romm 20x9 is 180 square feet. You will need 5000 to 6000 BTUs for this.
A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.
Yes
This is usually controlled by local statutes, (if it is regulated at all).
YES
we have commercial logging because we need the resources that it produces; like timber frames for building houses and lamination for our floors and paper.
It depends on what the ordinance from building and zoning say in your locale.
48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24. 48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24. 48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24.
To convert a watt to BTUs, the factor is 1 kilowatt of power = 3412.1416 BTU/hr 3.412 BTUs equal a watt. 1200 watt = 4094.4 BTUS you will need to remove about 4100 BTU/hr
To construct a fire-rated wall in a commercial building, you need to follow specific requirements such as using fire-resistant materials, ensuring proper thickness and insulation, installing fire-rated doors and windows, and following building codes and regulations.
That issue would be covered by your local building ordinances. You need to call your local town offices and inquire there.