All HEOS and Home Denon devices are multi-room capable. You simply use the HEOS app where you add the speakers you want to a Multi Room group. This is done simply by dragging and dropping in the app. You can also create a stereo pair with two HEOS or Home speakers using the HEOS app.

This allows you to play music from any source connected to the Denon receiver in multiple rooms.

I don't have a Home 150 myself (yet), but I am already actively using the Heos app and WLAN functions. According to the specifications, not only streaming but also Multiroom (e.g. via the Home 150) should be possible with Heos. Since this Home 150 also has Heos, this should be a safe thing.

Hello jamill85.
I don't have a Denon Home 150, but from the report on the internet, I assume that this Denon Home 150 is Bluetooth enabled.
And with Bluetooth, you can play the sound from the Denon AVR through the Home 150, which would be in the kitchen.
I myself have an Ultimate Ears BOOM 3 speaker, which I can connect to the AVR-S660H via Bluetooth and play music from the Denon AVR S660H.
Unfortunately, I don't know whether the AVR S660H can be connected to the Denon Home 150 via WLAN.
In any case, I cannot network my SONOS with the Denon AVR S660H as a master. Only as a slave (the AVR then plays music from the SONOS).
I hope I have shed some light on this question.