Calif. multifamily rec room warming kitchen - recirculating or no hood?

[Yikes]

New apartment building in California, has a community room (multipurpose / "rec room") that has a warming kitchen are: refrigerator, sink, coffee maker. These spaces often have a electric (not gas) domestic range, though it is rarely used. It is certainly not used for cooking, only for keeping something warm.
This particular space has a significant problem getting a vented range hood to duct to the outdoors. The owner is asking:

• Do the California Codes (energy, Mechanical, Green) require a non-residential range hood to be ducted?
• Under what circumstances can the range hood be deleted altogether? Are there alternative warming devices (electric oven only, warming drawer only, or maybe an induction burner in the countertop just to boil some water) that do not trigger a requirement for a hood?

 

[Yikes]

Pinging

 

[mark handler]

Due to Air quality issues, "I was told", in a seminar in Sacramento, Recirculating range hoods are no longer permitted in California.
I do not have a code section.....

 

[Joe.B]

Due to Air quality issues, "I was told", in a seminar in Sacramento, Recirculating range hoods are no longer permitted in California.
I do not have a code section.....

Yeah, it's new in the energy code this cycle, 150.0(o)(1)(G) for single-family, and 160.2(b)(2)(A)(vi) for multi-family.

Man, talk about a messed-up numbering system. Fortunately, they're going to be completely re-organizing and re-numbering the energy code to make it more like the other codes.

New apartment building in California, has a community room (multipurpose / "rec room") that has a warming kitchen are: refrigerator, sink, coffee maker. These spaces often have a electric (not gas) domestic range, though it is rarely used. It is certainly not used for cooking, only for keeping something warm.
This particular space has a significant problem getting a vented range hood to duct to the outdoors. The owner is asking:

• Do the California Codes (energy, Mechanical, Green) require a non-residential range hood to be ducted?
• Under what circumstances can the range hood be deleted altogether? Are there alternative warming devices (electric oven only, warming drawer only, or maybe an induction burner in the countertop just to boil some water) that do not trigger a requirement for a hood?

Check out 2022 California Energy Code, Section 160.2(c), it looks like you have some options, but one way or another the space will need to be ventilated. I don't see anything that would specifically require a range exhaust system like the two sections I cited above.

 

[Gregg Harris]

New apartment building in California, has a community room (multipurpose / "rec room") that has a warming kitchen are: refrigerator, sink, coffee maker. These spaces often have a electric (not gas) domestic range, though it is rarely used. It is certainly not used for cooking, only for keeping something warm.
This particular space has a significant problem getting a vented range hood to duct to the outdoors. The owner is asking:

• Do the California Codes (energy, Mechanical, Green) require a non-residential range hood to be ducted?
• Under what circumstances can the range hood be deleted altogether? Are there alternative warming devices (electric oven only, warming drawer only, or maybe an induction burner in the countertop just to boil some water) that do not trigger a requirement for a hood?

Take a look at IMC 507.2.2 exceptions

 

[Joe.B]

Take a look at IMC 507.2.2 exceptions

California does not use IMC as the model code for mechanical, we use the UMC. Completely different.

 

[Gregg Harris]

Try 507 through 518 UMC