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178Wall Heater, White, 1000/2000W 240VAC, 750W/1500W 208 VAC.

  • Overview
  • Room Sizing Guide
  • Specifications
  • Accessories
  • Reviews
  • Answers
  • This wall heater is perfect for bathrooms, entryways, or other small areas where you need added warmth on demand. Factory wired at 2,000W, at 240V AC, it can be easily converted to 1,000W at 240V AC for added versatility.

    • White grille has downflow louvers to direct heat gently toward the floor and a one-piece design with baked enamel finish for durability
    • Adjustable, front-mounted thermostat offers a simple way to control the level of heat
    • Rapid warm up time due to an efficient Alloy heating element that provides comforting heat in seconds
    • Heater may be recessed or surface-mounted, depending on your application (surface mounting requires Model 84 surface mount kit)
    • Permanently lubricated motor, high efficiency blower wheel, Nickel-chrome alloy heating element and a manual reset thermal overload protector combine to ensure reliable operation and years of trouble free heating. UL Listed for safety.
    • Also available in project packs (171H Rough-In Housing Kit, and 178F without thermostat or 178FT with thermostat Finish Kits) for the convenience of contractors working on multi-unit projects
    • Wall heaters are intended to provide supplemental heat from a wall location and not to take the place of the home’s main heat source
  • How To Size a Room – Quick Calculation

      Moderate Climate (with 8’ ceiling and adequate insulation)
    • Square Footage x 10 = Watts required
    • Example: 100 Sq. Ft. x 10 = 1,000 Watts

    • Colder Climate (with 8’ ceiling and adequate insulation)
    • Square Footage x 15 = Watts required
    • Example: 100 Sq. Ft. x 15 = 1,500 Watts

    How To Figure BTU’s

    • Wattage x 3.413 (constant) = BTU’s (British Thermal Unit)
    • Example: 1,000 Watts x 3.413 = 3,413 BTU’s
    • Example: 4,000 Watts x 3.413 = 13,652 BTU’s
    • One BTU is the quantity of heat needed to raise one pound of water one degree Fahrenheit

    How To Figure Amperage

    • Watts/Voltage = Amperage
    • Example: 1,000 Watts / 120 Volts = 8.33 Amps

    How To Figure Voltage

    • Watts/Amperage = Voltage
    • Example: 1,000 Watts / 8.33 Amps = 120 Volts

    How To Figure Wattage

    • Voltage x Amperage = Watts
    • Example: 120 Volts x 8.33 Amps = 1,000 Watts
    • Example: 240 Volts x 4.16 Amps = 1,000 Watts
  • Air Mover TypeFan
    Auto Shut-offYes
    BTU/hr at 120 VoltsN/A
    BTU/hr at 208 Volts5120 BTU/hr
    BTU/hr at 240 Volts6827 BTU/hr
    ControlsBuilt In Thermostat
    cUL ListedNo
    Grille Dimensions - Height9-1/4"
    Grille Dimensions - Width12"
    Heater TypeFan-Forced Wall
    Housing Dimensions - Height7-3/4"
    Housing Dimensions - Width10-1/4"
    Housing FinishOff White
    Housing MaterialSteel
    Number of Heat SettingsVariable
    Project PackNo
    UL ListedYes
    Warranty1 Year
    Watts and Amps at 120 VoltsN/A
    Watts and Amps at 208 Volts1500/750 Watts and 7.23.6 Amps
    Watts and Amps at 240 Volts2000/1000 Watts and 8.3/4.1 Amps
  • 178 is rated 4.2 out of 5 by 6.
    Rated 5 out of 5 by from Good Quality Great product a good choice for a current replacement!
    Date published: 2015-01-12
    Rated 5 out of 5 by from This wall heater does my 10'x12' bathroom perfectly. Love it. My wall heater got hit by lightning, (12 yrs. old) bought new one,same model and replaced old mtr. and grill in less than 20 min., left original housing in wall. Everything interchanged perfectly. No crazy design changes. Good job Braun
    Date published: 2013-08-21
    Rated 4 out of 5 by from Great features, easy to install. Installed, had bad thermostat. Called company, they sent a part to fix within 3 days. Good product.
    Date published: 2013-08-21
    Rated 5 out of 5 by from excellent little heater I installed this exact same heater when it was called Nautilis 20 years ago. It still works but is looking a bit worse for age. I am replacing it with this Broan model as it appears just as well made, hope it lasts just as long.
    Date published: 2013-02-25
    Rated 1 out of 5 by from Worked great for a while The unit worked great for two winters. Now it has quit and the warranty is for 1 year. Probably would not have lasted 1 year if used regularly throughout the year.
    Date published: 2013-01-10
    Rated 5 out of 5 by from Easy to purchase and easy to install Great experience with Venting Direct. My order was received in a timely manner and the installation was just as easy since I was replacing an existing unit that was 14 years old. I would definitely recommend Venting Direct to anyone.
    Date published: 2010-01-06
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  • how many square feet does the 174 cover

    Asked by: Anonymous
    Covers my 120 sq. ft. unheated bath easy, so I would say 200 sq. ft.
    Answered by: Mildred
    Date published: 2013-10-26

    How loud is it?

    Is there a sound rating in sones?
    Asked by: Anonymous
    Not to my knowledge on this model as it probably wouldn't register on the meter. I find it very quiet.
    Answered by: Mildred
    Date published: 2013-10-26

    Will the Broan 174 thermostat circulate off and on to maintain a temperature setting

    Asked by: Anonymous
    Thank you for your question on the model 174 wall mounted fan forced heater. The 174 has a thermostat on the front of the grille that can be set and will cycle the heater on and off to help maintain a particular temperature in the room. Please remember that our heaters are made for supplemental heat only and not for the primary heat source in the room. If you need further assistance please contact our Technical Service Department at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2013-10-28

    Can Model 174 be installed in existing construction with steel studs?

    I have 16" on center steel studs in existing construction. Your installation instructions show new construction with wood studs. Is it possible to install in my situation without using kit 84 to mount on the wall instead of within the wall?
    Asked by: Anonymous
    you could but the housing would show if it is surface mounted and you would have to drill a entrance hole for #12 wire to come thru the back side of housing. I cut a hole in my drywall the size of the housing next to the stud and slid it in then screwed to the stud.
    Answered by: Mildred
    Date published: 2013-11-09

    Where is the fresh drawn into the unit?

    How tight can you make the rough-in hole (in terms of fresh air being drawn into stud cavity) and can the rear of the box be flushed tight to the back of the rough-in hole?
    Asked by: Anonymous
    Thank you for your question on the model 178 wall heater. The air is pulled into the front right side of the grille and pushed into the room through the left side of the grille. All air is contained within the metal housing of this heater. The metal housing will fit a standard 2 X 4 wall cavity. Please contact the Technical Service Department at 800-637-1453 for further assistance.
    Answered by: BroanCustomerService
    Date published: 2015-06-20
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