Support box or just insulation shield and anchor plate for single story ZC

[madosta]

Planning on installing a new retrofit Zero Clearance Fireplace in a framed bump out towards the center of the house.

I can find all the components for an insulated pipe install from the ZC straight through the ceiling and out to the roof deck.

Fire Stop and Insulation Shield:
ZC Fireplace -> Anchor Plate -> Pipe -> Firestop and Insulation Shield -> Roof Flashing -> Cap

BUT... do I need a square support box at the ceiling and then how would you attach the ZC Fireplace to the ceiling box - with an adjustable insulated pipe? Or am I overthinking this?

 

[DAKSY]

What model are you planning to install? That model’s installation manual will tell you what you need for venting.

 

[madosta]

In this case I'm considering purchasing the Supreme Astra 24.

But it might be too small for ~2000sq ft single story, 8ft ceilings, but not sure.

I am also considering:

- Pacific Energy FP25
- Superior WRT3920 (maybe the WCT4920)
- Supreme Astra 32
- RSF Focus 3600
- Ambiance Elegance 36

 

[DAKSY]

No matter what one you choose, don’t buy ANY venting until you know EXACTLY what is approved for that particular unit.

 

[begreen]

Planning on installing a new retrofit Zero Clearance Fireplace in a framed bump out towards the center of the house.

I can find all the components for an insulated pipe install from the ZC straight through the ceiling and out to the roof deck.

Fire Stop and Insulation Shield:
ZC Fireplace -> Anchor Plate -> Pipe -> Firestop and Insulation Shield -> Roof Flashing -> Cap

BUT... do I need a square support box at the ceiling and then how would you attach the ZC Fireplace to the ceiling box - with an adjustable insulated pipe? Or am I overthinking this?

ZC fireplaces typically are the "support". The chimney pipe usually attaches directly to a collar specific to the required chimney brand on the fireplace. The chase should have a fire block at the fireplace room's ceiling height.

Definitely read the manual thoroughly for details on the required chimney pipe and installation requirements.