The process is simple.
1. go to town/village offices.
2. Apply for a building permit for installation of a solid fuel appliance.
3. Install appliance in accordance to the residential code and mechanical code of NYS. Also being a boiler, NYS code rule 4 applies (to limitation in residential construction).
4. Notify town/village official of completion.
5. It they wish to inspect that is their responsibility. If they do not, don't worry.
They can only enforce written regulations. They can have regulations above and beyond state code but must be adopted by the governing body and in writing.
The code enforcement officer is the local authority have jurisdiction. If he rejects something, he must give you written notice and cite the code being violated. He can however interpert the code.
There is no requirement in NYS codes that a solid fuel appliance be UL listed. This would have to be a local code.
It does require the product to be listed and labeled by an independant testing agency for the use of which it was intended. It only requires that a record be kept of this testing.
Keystoker doe label their units. As far has ever having them tested, ask them.
The only documentation that should be required is that the appliance is listed for the use intended. Example - you cannot burn wood pellets in it as it is not listed for it but you can burn rice coal because it is.
ASME construction is not required for residential buildings under 6 living units (apartments or townhouses). Keystoker boilers are NOT ASME constructed. This should not an issue.
You should maintain the clearances around the unit as required in Code rule 4 (2 feet back and sides, 4 feet in front). I consider the hopper the front but you may want more than 2 feet on the ash bin side.
Carbon monoxide detectors are required in the Property Maintenance Code and are a must with coal heat.
Requirements for chimney's apply. Solid fuel appliances must have their own chimney
Link to codes:http://publicecodes.cyberregs.com/st/ny/st/index.htmhttp://www.labor.state.ny.us/workerprot ... h/sh4.shtm
Note: He can "red tag" the appliance and prohibit operation if he feels it is not installed per code, but he must state the reason. You can argue with him but it is better to discuss it pleasantly. It will be difficult to go over his head legally without a lawyer.
PS I agree a KC-10 is a big unit. You must have a huge heat load.
PSS: Document, Document, Document