Wood heated Spa

[Mr. Inspector]

I inspected a spa that had a wood stove attached to heat it. The tub was fiberglass and the outside was wood. The wood heater looked like cast steel.
It did not have a filter but just had a 110v. recirculation pump in it. It is in a back yard on the ground. The installer said it was built by the Amish and there were no manufactures installation instructions. I looks home made. The electrical panel inside looked like the usual one I see in spas and was listed but doesn't the whole spa need to have a listing?
Of course, was no listing to indicate it was self-contained so it would need the perimeter surface bonded.

Since there is no filter would it define as a hydromassage bathtub?

 

[Mr. Inspector]

How should they bond the wood stove? Should I worry about the copper wire melting?

 

[Joe.B]

Does the circulation pump have an equipment grounding conductor? Is it plugged into a GFCI protected outlet? If yes to both of those I wouldn't look any further, personally...

 

[Mr. Inspector]

Code says it needs to be listed for a flexible cable with a plug, and it is not listed for this. The spa has no listing only the pump is. There is also a bonding bar which the pump is bonded to. Code says metal within 5' of the spa is required to be bonded which is why the wood stove that heats it needs to be bonded.