The best bathroom exhaust fans with a heater
A cold bathroom and a steamy one are the same room at different times of day. One ceiling unit can fix both, if the wiring can take it.
By Sawyer V. · · How we research
The short answer
We earn a commission if you buy through the links on this page, at no extra cost to you. It does not change which products we pick or what we say about them — here is exactly how that works.
Quick picks
Tap any row for the full write-up. Prices are checked against Amazon rather than remembered — where we have no verified figure the button says so.
| # | Product | Best for | Renter | Price |
|---|---|---|---|---|
| 1 |  WhisperWarm DC Fan with Heater, 50-80-110 CFM A 1,600-watt heater, a 50/80/110 CFM fan at 0.7 sones or less, and a published circuit requirement and warranty. | Adding heat to a bathroom that already has decent light | Owner-only | |
| 2 |  WhisperWarm DC Fan and Heater with Light, 50-80-110 CFM The same heater and fan with a 10-watt dimmable LED panel at 750 lumens, 3000K and CRI 90 or higher. | Replacing one weak ceiling fixture with fan, heat and light | Owner-only | |
| — | Whisper Cozy Ventilation Fan with Heat Combo, 80/110 CFM The same class of 1,600-watt heater, but the product page publishes no sones, fan watts, dimensions, circuit or warranty. | Skip this one | Owner-only | No buy link |
The circuit is the whole decision
Panasonic’s wording for the WhisperWarm is “Minimum 20 Amp dedicated circuit required”. Dedicated means nothing else on it: not the lights, not the outlet by the sink, not the old fan.
The arithmetic shows why. At 120 volts, 1,600 watts is about 13.3 amps on its own. That leaves little headroom on a 20-amp circuit, and an existing bathroom fan is often wired onto a lighting circuit that was never meant to carry a heater.
So the real cost of this upgrade is rarely the unit. It is whether an electrician can run a new circuit from the panel to the ceiling, and in a finished house that comes down to access. Get that answered first. If the answer is no, a fan-heater is the wrong buy, and a plain exhaust fan plus a different heat source is the right one.
What PTC means, briefly
A positive temperature coefficient element’s resistance rises as it warms up, so its output tapers as it approaches operating temperature instead of climbing without limit. Panasonic names the heater type on all three units here. It does not publish a surface or outlet air temperature for any of them.
What it costs to run
Heat is the expensive part. At 1,600 watts and the US average residential rate of 18.34 cents per kWh, a 20-minute run uses 0.53 kWh — about 10 cents. Every morning for a year, that is roughly $36.
The fan barely registers next to it: 12 watts for 20 minutes is 4 watt-hours, a fraction of a cent.
The 20 minutes is our example, not Panasonic’s. Double it and the cost doubles. The useful habit is a timer on the heater, which your electrician can fit while the circuit is going in.
Size the fan, because nobody sizes the heater
Panasonic publishes airflow and noise for these units, but no room-size rating for the heater. The one sizing decision you can make from published figures is the fan, and Pick-A-Flow lets the installer choose 50, 80 or 110 CFM (80 or 110 on the Whisper Cozy).
The fan side is the same technology we cover on the exhaust fan page, and if steam rather than cold is your main problem, a humidity-sensing fan may fix more for less wiring.
If you rent
Every product here rates Owner-only on our install rating: a ceiling opening, a duct and a dedicated circuit.
The renter’s route to a warm bathroom is a plug-in heater used carefully, and it comes with rules. The renter-friendly heaters are here, and the safety rules are here. A fan that does not clear the steam is a repair your landlord owes you.
What none of them publish
How big a room each heater will warm, and how quickly. 1,600 watts is about 5,460 BTU an hour — a straight unit conversion, not a Panasonic figure — but how warm that makes your bathroom depends on its size, its insulation and how cold it was to begin with. Nobody can honestly promise you a temperature, and Panasonic does not try.
Every pick in full
2 we would buy, and one we would not. Each carries its Renter-Safe Install Rating, the published specs behind it, and the honest gap in what we know.
1. Best overall
WhisperWarm DC Fan with Heater, 50-80-110 CFM
Panasonic · FV-0511VH1 · best for adding heat to a bathroom that already has decent light
A 1,600-watt heater, a 50/80/110 CFM fan at 0.7 sones or less, and a published circuit requirement and warranty.
The Panasonic WhisperWarm DC Fan with Heater is the pick because Panasonic publishes the three numbers this category turns on: the heater, the fan and the circuit.
The heater is a “1600W Positive Temperature Coefficient (PTC) heater”. The fan uses Pick-A-Flow, so the installer sets it to 50, 80 or 110 CFM to suit the room, and Panasonic publishes 0.7, under 0.3 and under 0.3 sones across those speeds at 0.1 in. of static pressure. Fan draw is 4.7 to 12 watts at that pressure.
It takes a 4 in. or 6 in. duct and a 10-1/4 by 16 in. ceiling opening. The warranty is published too: “6 years ECM Motor, 5 years LED, 3 years all other parts”.
Panasonic answers the ENERGY STAR question directly, and the answer is “No”. Worth knowing if you were counting on a utility rebate.
Renter-Safe Install Rating
- Drilling
- Required
- Tools
- Not published
- Time to fit
- Not published
- Power
- Hardwired
- Reversible on move-out
- No
Why: A 1,600-watt heater on its own 20-amp circuit, in a ceiling opening, on a duct. That is an electrician's job on a building you own.
Read from published documentation, not from fitting one. Panasonic — WhisperWarm DC Fan with Heater FV-0511VH1, published airflow, sones, heater and circuit. How the verdict is derived: renter-safe ratings explained.
What it costs to run — Electricity (heater)
- Heater power
- 1,600 W (published)
- Run time
- 20 minutes (our example)
- Rate
- 18.34 cents per kWh
1,600 W x 0.333 h / 1000 x $0.1834 = $0.098
About 10 cents per 20-minute run
Arithmetic on published specifications, not a measurement. Rate source: U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A — US residential average 18.34 cents/kWh, June 2026.
What’s wrong with it
The 10-1/4 by 16 in. opening is longer than the 10-1/2 in. square opening of Panasonic's fan-only WhisperCeiling, so swapping one for the other usually means cutting the ceiling.
What we can’t tell you
Panasonic publishes no heat coverage — how large a room 1,600 watts will warm, or how fast.
Published specifications
| Airflow | Pick-A-Flow selectable 50, 80 or 110 CFM |
|---|---|
| Sones | 0.7, under 0.3 and under 0.3 across the three speeds at 0.1 in. static pressure |
| Fan power | 4.7 to 12 watts across the three speeds at 0.1 in. static pressure; up to 26 watts at 0.375 in. |
| Heater | “1600W Positive Temperature Coefficient (PTC) heater” |
| Circuit | “Minimum 20 Amp dedicated circuit required” |
| Duct | 4 in. or 6 in. |
| Mounting opening | 10-1/4 in. x 16 in.; grille 13-1/4 in. x 18-1/4 in. |
| ENERGY STAR | “No” |
| Warranty | “6 years ECM Motor, 5 years LED, 3 years all other parts” |
| Light | None on this model |
Source: Panasonic — WhisperWarm DC Fan with Heater FV-0511VH1, published airflow, sones, heater and circuit
#ad Price $314.99 as of October 18, 2026. Prices change; Amazon’s listing is the one that counts. How we’re funded.
2. Best with a light
WhisperWarm DC Fan and Heater with Light, 50-80-110 CFM
Panasonic · FV-0511VHL1 · best for replacing one weak ceiling fixture with fan, heat and light
The same heater and fan with a 10-watt dimmable LED panel at 750 lumens, 3000K and CRI 90 or higher.
The WhisperWarm DC Fan and Heater with Light is the one to buy when the fixture you are replacing is also the only light in the room.
Underneath, it is the same unit: the 1,600-watt PTC heater, Pick-A-Flow at 50, 80 or 110 CFM, the same published sones, a 4 in. or 6 in. duct, and the same 10-1/4 by 16 in. opening. Fan power is published at 4.7, 7.4 and 12.4 watts across the three speeds.
The light is a “10W dimmable LED chip panel” at 750 lumens, 3000K and a CRI of 90 or higher, rated for 50,000 hours. That is a touch brighter than the 700 lumens Panasonic publishes for its fan-only light models. Panasonic also notes it is “JA-8 compliant for CA Title 24”, which matters if you are remodeling in California.
Renter-Safe Install Rating
- Drilling
- Required
- Tools
- Not published
- Time to fit
- Not published
- Power
- Hardwired
- Reversible on move-out
- No
Why: A ceiling fan, a 1,600-watt heater and a light in one housing, on a dedicated 20-amp circuit. Electrician's work, and never a tenant's change.
Read from published documentation, not from fitting one. Panasonic — WhisperWarm DC Fan and Heater with Light FV-0511VHL1, published airflow, light, heater and circuit. How the verdict is derived: renter-safe ratings explained.
What it costs to run — Electricity (heater)
- Heater power
- 1,600 W (published)
- Run time
- 20 minutes (our example)
- Rate
- 18.34 cents per kWh
1,600 W x 0.333 h / 1000 x $0.1834 = $0.098
About 10 cents per 20-minute run
Arithmetic on published specifications, not a measurement. Rate source: U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A — US residential average 18.34 cents/kWh, June 2026.
What’s wrong with it
Fan, heater and light all want their own controls, and that is switching your electrician has to plan before the ceiling closes.
What we can’t tell you
The product page does not say how the three functions should be switched; the installation manual is where your electrician will look.
Published specifications
| Airflow | “50, 80, 110 CFM” |
|---|---|
| Sones | 0.7, under 0.3 and under 0.3 across the three speeds at 0.1 in. static pressure |
| Fan power | 4.7, 7.4 and 12.4 watts across the three speeds at 0.1 in. static pressure |
| Heater | “1600W Positive Temperature Coefficient (PTC) heater” |
| Light | “10W dimmable LED chip panel”, 750 lumens, 3000K, CRI 90 or higher |
| LED life | 50,000 hours rated; “JA-8 compliant for CA Title 24” |
| Circuit | “Minimum 20 Amp dedicated circuit required” |
| Duct | 4 in. or 6 in. |
| Mounting opening | 10-1/4 in. x 16 in.; grille 13-1/4 in. x 18-1/4 in. |
| Warranty | “6 years ECM Motor, 5 years LED, 3 years all other parts” |
#ad Price $405.99 as of October 18, 2026. Prices change; Amazon’s listing is the one that counts. How we’re funded.
The one to skip
Whisper Cozy Ventilation Fan with Heat Combo, 80/110 CFM
Panasonic · RG-Z811A · best for only once an electrician has confirmed the circuit
The same class of 1,600-watt heater, but the product page publishes no sones, fan watts, dimensions, circuit or warranty.
The skip here is about what is missing rather than what is wrong.
The Panasonic Whisper Cozy uses the same class of heater — Panasonic calls it an “Advanced 1600W Positive Temperature Coefficient (PTC) heater” — with an 80 or 110 CFM Pick-A-Flow fan and an “Integrated 4 in. or 6 in. dual duct adapter”.
But the product page text stops there. No sones, no fan wattage, no dimensions, no warranty, and — the one that matters most for a ceiling heater — no circuit requirement. The WhisperWarm puts that on its product page in plain words.
It may be a perfectly good unit. We just cannot tell you so from what is published, and the WhisperWarm leaves nothing to guess.
Renter-Safe Install Rating
- Drilling
- Required
- Tools
- Not published
- Time to fit
- Not published
- Power
- Hardwired
- Reversible on move-out
- No
Why: A 1,600-watt heater in the ceiling. Panasonic's page does not state the circuit it needs, which is the first question an electrician will ask.
Read from published documentation, not from fitting one. Panasonic — Whisper Cozy Fan/Heater Combo RG-Z811A product page. How the verdict is derived: renter-safe ratings explained.
What’s wrong with it
No published circuit, noise figure, dimensions or warranty on the product page.
What we can’t tell you
Everything above. The installation manual may answer it; the product page does not.
Published specifications
| Airflow | “Pick-A-Flow® selector lets you choose between 80 or 110 CFM” |
|---|---|
| Heater | “Advanced 1600W Positive Temperature Coefficient (PTC) heater” |
| Duct | “Integrated 4 in. or 6 in. dual duct adapter” |
| Sones | Not published in the product page text |
| Fan power | Not published in the product page text |
| Circuit | Not published in the product page text |
| Dimensions | Not published in the product page text |
| Warranty | Not published in the product page text |
Source: Panasonic — Whisper Cozy Fan/Heater Combo RG-Z811A product page
There is no buy button on this one. It is easy enough to find if you want it anyway — we would rather point you at something that is still on the wall in a year.
Where to buy
Everything recommended on this page, in one place. Each link is an Amazon Associates link — we earn a commission at no extra cost to you, and it never decides a pick.
- $314.99View on Amazon
WhisperWarm DC Fan with Heater, 50-80-110 CFM
Panasonic · FV-0511VH1 · Renter verdict: Owner-only
- $405.99View on Amazon
WhisperWarm DC Fan and Heater with Light, 50-80-110 CFM
Panasonic · FV-0511VHL1 · Renter verdict: Owner-only
#ad Prices are not shown because we only publish figures we have verified on the day. How we’re funded.
Questions people actually ask
are bathroom fan heaters worth it
If the wiring can take a dedicated 20-amp circuit, yes for a cold bathroom: one ceiling unit clears steam and adds 1,600 watts of heat. If it cannot, the circuit work becomes the real cost and a different heat source may make more sense.
do bathroom heater fans need a dedicated circuit
Panasonic's WhisperWarm says so directly: 'Minimum 20 Amp dedicated circuit required.' At 120 volts, a 1,600-watt heater draws about 13.3 amps before anything else is on the circuit.
how much does a bathroom fan heater cost to run
About 10 cents for a 20-minute run of a 1,600-watt heater at 18.34 cents per kWh, or roughly $36 a year if you use it every morning. The fan adds a fraction of a cent.
can i install a bathroom fan heater myself
It is a ceiling opening, a duct and a new dedicated circuit, which makes it an electrician's job. In a rental it is not yours to change at all.
Sources
- Panasonic — WhisperWarm DC Fan with Heater FV-0511VH1, published airflow, sones, heater, circuit and warranty
- Panasonic — WhisperWarm DC Fan and Heater with Light FV-0511VHL1, published light, heater and circuit
- Panasonic — Whisper Cozy Fan/Heater Combo RG-Z811A product page
- US EIA — Electric Power Monthly Table 5.6.A, residential average 18.34 cents per kWh, June 2026
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