QuietScoreBathroom & Utility Fans › Greenheck SP-LP0511H

Greenheck SP-LP0511H noise level

The Greenheck SP-LP0511H is certified at 0.3 sones (≈23 dBA) — quieter than 75% of the 811 bathroom & utility fans in the ENERGY STAR database. In practical terms it is near the threshold of human hearing — effectively silent in a normal room.
0.3sones (certified)
≈23 dBAapproximate conversion
110 CFMairflow
9.5CFM per watt

The Greenheck SP-LP0511H is quieter than the category median of 0.7 sones, and its 110 CFM rating makes it suitable for bathrooms up to roughly 110 sq ft.

Full specifications

BrandGreenheck
Model numberSP-LP0511H
Model nameModel SP Ceiling Fan, Direct Drive
CategoryBathroom & Utility Fans
Sound level0.3 sones (≈23 dBA, approximate)
Airflow110 CFM
Efficiency9.5 CFM/W
Duct size4.00 inch diameter
Speeds3
Integrated lightingNo
ENERGY STAR certifiedYes
On market since2025-10-15
MarketsUnited States, Canada

Quieter alternatives with similar airflow

Model Sones ≈ dBA Airflow Efficiency
Panasonic Eco Solutions FV-0811RQ1 0.1 7 110 CFM 5.1 CFM/W specs
Panasonic Eco Solutions FV-0811RQC1 0.1 7 110 CFM 4.9 CFM/W specs
Fantech SC50-80-110 (484313) 0.1 7 110 CFM 10.7 CFM/W specs
Fantech SC50-80-110H (494140) 0.1 7 110 CFM 10.7 CFM/W specs
Fantech SC50-80-110L (484314) 0.1 7 110 CFM 10.7 CFM/W specs

Similar bathroom & utility fans

Model Sones ≈ dBA Airflow Efficiency
Broan XB110 0.3 23 110 CFM 14.3 CFM/W specs
Broan XB110HL1 0.3 23 110 CFM 12.6 CFM/W specs
Broan (Canada) XB110L1 0.3 23 110 CFM 12.6 CFM/W specs
Pennbarry ZQ110 6" 0.3 23 110 CFM 13.1 CFM/W specs
Delta ELT80-110DLED 0.3 23 110 CFM 11.9 CFM/W specs

Frequently asked questions

How many sones is the Greenheck SP-LP0511H?

The Greenheck SP-LP0511H is certified at 0.3 sones in ENERGY STAR lab testing, which is approximately 23 dBA. That is near the threshold of human hearing — effectively silent in a normal room.

Is the Greenheck SP-LP0511H quiet?

At 0.3 sones, the Greenheck SP-LP0511H is quieter than 75% of the 811 certified bathroom & utility fans we track, and quieter than the category median of 0.7 sones.

How powerful is the Greenheck SP-LP0511H?

It moves 110 CFM, which is adequate for a bathroom of roughly 110 sq ft under the standard 1-CFM-per-square-foot guideline, at an efficiency of 9.5 CFM per watt.

Data provenance: Sound levels are certified lab measurements (sones) reported in the U.S. EPA ENERGY STAR certified products dataset — not manufacturer marketing claims. Source: ENERGY STAR Certified Ventilating Fans (US EPA), last fetched 2026-06-13. The dBA figure is an approximate conversion from sones — see our methodology.