Broan NuTone 157 Radiant Ceiling Heater Sourcing

The fastest way to find, compare and buy Broan NuTone 157 ceiling heaters.

Describe the room size, mounting box, or supplemental heating need you have. ChatMRO finds the exact Broan match, shows alternatives, and gives you a quote — in seconds. No part number needed.

  • 30M+ parts indexed
  • Quote in < 60 seconds
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  • No exact MPN needed
Technical Foundation

What is the Broan NuTone 157 — and why does its low-profile design suit supplemental bathroom heating?

The Broan NuTone 157 is a surface-mount, fan-forced electric ceiling heater built into a low-profile aluminum housing that extends only 2-3/4" from the ceiling, letting it mount directly to a standard electrical box without the deeper cavity a recessed heater would require. A built-in fan actively dispenses heat evenly across the room rather than relying on passive radiant convection alone, and the permanently lubricated motor is designed to run maintenance-free for the life of the unit.

Homeowners and contractors installing supplemental heat in bathrooms, small offices, and other rooms without adequate primary heating reach for the 157 because its compact 11" x 2-3/4" footprint mounts to the same standard 3-1/2" and 4" round or 4" octagonal ceiling electrical boxes already common in residential construction, making it a straightforward retrofit into an existing fixture location. Automatic overheat protection shuts the unit down if airflow is restricted or the heater overheats, and Broan explicitly designs the 157 to provide supplemental heat only — it is not intended to replace a home's main heating system.

Common configuration: 1250W wattage output at 120VAC, 1-phase, 60 Hz, 10.7A amperage draw, 4,266 BtuH heating capacity, fan-forced heating method, rated to heat approximately 125 sq ft, overall dimensions of 2-3/4" (or 2-11/16" per some documentation) height x 11" width x 2-3/4" depth, satin-finish aluminum housing and grille in a gray/silver color, roughly 2-1/4 to 2.85 lb weight depending on source, UL Listed, and a 1-year manufacturer warranty. No thermostat is included with the unit — Broan recommends pairing it with the separately sold Model 86W line voltage thermostat and, optionally, the Model 81W/61V 15-minute timer.

Quick-Reference Spec Glossary

Wattage output
1250W
Voltage/Phase/Frequency
120VAC, 1-phase, 60 Hz
Amperage
10.7A
Heating capacity
4,266 BtuH
Heating method
Fan-forced
Area heated
~125 sq ft
Overall dimensions
2-3/4" H x 11" W x 2-3/4" D
Thermostat included
No — Model 86W recommended separately
Procurement Decision Tool

Which Broan NuTone 157 configuration is right for your application?

Stop second-guessing. Match your use case below — then let ChatMRO's AI surface the exact accessory bundle and alternatives in one natural-language search.

Standard Bathroom & Small Room Supplemental Heat

Bathrooms and small rooms needing straightforward supplemental warmth without a separate control system already in place. The base 157 unit dominates here.

  • 1250W, 4,266 BtuH, rated for ~125 sq ft
  • Low-profile 2-3/4" housing fits standard ceiling boxes
  • Fan-forced for even heat distribution across the room
  • UL Listed, automatic overheat protection built in
Find on ChatMRO →

Timed-Use Installations

Bathrooms or rooms where heat is only needed for a short period, such as during showering or dressing.

  • 157 heater paired with the Model 81W/61V 15-minute timer
  • Automatically shuts the heater off after a set duration
  • Useful for reducing energy use in intermittent-occupancy rooms
  • Timer and thermostat can potentially be combined depending on wiring
Find on ChatMRO →

Not sure which category fits? Just describe your problem

No MPN required. No filter trees. Just ask.

Brand Intelligence

Products — What to choose and whyBROAN-NUTONE

Broan-NuTone's Model 157 is a widely stocked standard low-profile ceiling heater, paired with separately sold control accessories to complete a functional installation. Here's how to navigate sourcing without a 40-tab browser session.

ChatMRO indexes the full Broan-NuTone ceiling heater catalogue. Search any product by description, application, or rough spec.

BASE HEATER UNIT
157 Series (Cross-Ref 5EFR6)

Low-Profile Fan-Forced Ceiling Heater

The standard bathroom/small-room workhorse. 1250W, 120VAC, 10.7A, 4,266 BtuH, fan-forced, rated for ~125 sq ft. Low-profile aluminum housing (2-3/4"H x 11"W x 2-3/4"D), satin aluminum finish, mounts to standard 3-1/2"/4" round or 4" octagonal boxes. UL Listed, automatic overheat protection.

  • Base Heater
  • 1250W
  • Low-Profile
  • UL Listed
Search 157 Series (Cross-Ref 5EFR6) →
LINE VOLTAGE THERMOSTAT
86W Series

Line Voltage Thermostat for Ceiling Heaters

The manufacturer-recommended companion thermostat for the Model 157, providing automatic temperature-based cycling control rather than manual on/off operation. Sold separately from the heater.

  • Companion Accessory
  • Automatic Cycling Control
  • Sold Separately
Search 86W Series →
15-MINUTE TIMER
81W/61V Series

15-Minute Timer for Ceiling Heaters

An optional companion timer for the Model 157, automatically shutting the heater off after 15 minutes — useful for intermittent-use rooms like bathrooms where continuous heating isn't needed.

  • Optional Accessory
  • 15-Minute Auto Shutoff
  • Sold Separately
Search 81W/61V Series →
Side-by-Side Comparison

Broan NuTone 157 accessory configurations — when to choose what

Use this table as a decision shortcut. Ask ChatMRO for the exact part once you know which row fits your spec.

ConfigurationControl TypeBest ForHeating CapacityArea HeatedMountingChatMRO Verdict
157 (base unit only)Manual switch (customer-supplied)Simple installs with existing switch control4,266 BtuH~125 sq ftStandard ceiling boxGood minimal-cost option if switching is already in place
157 + Model 86W ThermostatAutomatic line voltage thermostatInstallations wanting temperature-based auto-cycling4,266 BtuH~125 sq ftStandard ceiling boxMost common recommended configuration for proper climate control
157 + Model 81W/61V Timer15-minute auto shutoff timerIntermittent-use rooms (bathrooms during showering)4,266 BtuH~125 sq ftStandard ceiling boxBest for reducing energy use in short-duration heating needs
157 + Thermostat + TimerCombined automatic + timed controlInstallations wanting both temperature and duration control4,266 BtuH~125 sq ftStandard ceiling boxUse for the most complete control setup — confirm wiring compatibility
Recessed/Infrared Ceiling Heater (comparison)VariesApplications needing infrared bulb heat instead of fan-forcedModel-specificModel-specificRecessed cavity requiredConsider when infrared radiant heat is preferred over fan-forced
Generic Import Ceiling HeaterVariesBudget, occasional light useVariableVariableVariableVerify UL listing and standard box mounting compatibility before ordering

Not sure which row is yours? Describe your application to ChatMRO and get an instant AI-matched recommendation with datasheets.

How ChatMRO AI Works

Stop filtering. Start asking. AI-powered part discovery for MRO.

Traditional catalogues force you to know the exact MPN before you find anything. ChatMRO flips that: describe what you need in plain English, and the AI finds the right heater from 30M+ indexed parts.

  1. 01

    You describe the part

    In plain language — by room size, mounting box, or heating need. No MPN required.

  2. 02

    AI matches semantically

    Natural language processing maps your description to the closest-fit products across brands and specs.

  3. 03

    Alternatives surface instantly

    Cross-brand equivalents, lower-cost substitutes, and in-stock alternatives shown side-by-side.

  4. 04

    Quote in 60 seconds

    Add to cart or request RFQ directly from the results. No phone calls. No email chains.

Buyer's Technical Guide

How to select the right Broan NuTone 157 ceiling heater

Whether you're a homeowner adding supplemental heat to a cold bathroom, or a contractor specifying heaters for a new construction project — use this framework before you procure.

5-Step Selection Checklist

  1. 1

    Confirm your room size fits the rated heating capacity

    The 157 is rated to heat approximately 125 sq ft — confirm your specific room's square footage and insulation level fall within a reasonable range for this capacity as supplemental (not primary) heat.

  2. 2

    Verify your ceiling box is compatible

    The unit mounts to standard 3-1/2" or 4" round, or 4" octagonal ceiling electrical boxes — confirm your existing or planned box matches one of these standard sizes.

  3. 3

    Decide on thermostat and/or timer control

    The heater does not include a thermostat — decide whether you need the Model 86W line voltage thermostat for automatic temperature control, the Model 81W/61V timer for automatic shutoff, or a simple manual switch.

  4. 4

    Confirm electrical circuit capacity

    At 10.7A on a 120V circuit, confirm your electrical circuit has sufficient capacity for this load alongside any other devices on the same circuit.

  5. 5

    Remember this is supplemental heat only

    Broan explicitly designs this unit to provide supplemental heat, not to replace a home's main heating system — confirm your primary heating source adequately covers the space's baseline needs.

Common Procurement Mistakes

  • Ordering the heater expecting a thermostat to be included

    The 157 does not include a thermostat — confirm you're separately ordering the Model 86W (or a compatible control) if automatic temperature cycling is desired. Search by function on ChatMRO — the AI surfaces exact matches AND the correct companion accessories for your installation.

  • Assuming the unit can replace primary heating

    This heater is explicitly designed for supplemental heat only — relying on it as a room's sole heat source in cold climates may not provide adequate warmth.

  • Overlooking electrical box compatibility before purchase

    Confirm your ceiling box matches one of the standard supported sizes (3-1/2"/4" round or 4" octagonal) before ordering, to avoid needing box replacement during installation.

  • Spending hours in supplier catalogues

    Describing your application to ChatMRO takes 30 seconds. The AI reads the full Broan-NuTone ceiling heater catalogue so you don't have to.

FAQ — Broan NuTone 157 Radiant Ceiling Heater

Questions homeowners and procurement teams ask most

Does the Broan NuTone 157 include a thermostat?

No — the 157 does not include a thermostat; Broan recommends operating it with the separately sold Model 86W line voltage thermostat, and optionally the Model 81W/61V 15-minute timer, both of which must be purchased separately. Search this heater and its compatible accessories together on ChatMRO to compare pricing and availability instantly.

What size room can the 157 heat?

The 157 is rated to provide supplemental heat for approximately 125 square feet, delivering 4,266 BtuH of heating capacity from its 1250W fan-forced element — confirm this matches your specific room size and insulation level as a supplemental (not primary) heat source. ChatMRO can surface heaters rated for different room sizes from a single description search.

What ceiling boxes is this heater compatible with?

The 157 mounts easily to standard 3-1/2 inch or 4 inch round ceiling electrical boxes, as well as 4 inch octagonal boxes, making it a straightforward retrofit into most existing residential ceiling fixture locations. ChatMRO provides access to manufacturer mounting compatibility details directly from search results.

Is this heater intended as a primary heat source?

No — Broan explicitly states this ceiling heater is intended to provide supplemental heat and is not designed to take the place of a home's main heating system. If you're unsure whether this unit is adequate for your specific room, describe your application to ChatMRO and get an AI recommendation in seconds.

Where can I buy a Broan NuTone 157 with fast delivery?

ChatMRO indexes Broan-NuTone inventory from multiple distributors across India, Southeast Asia, US, and EU. Search by part name, description, or rough spec — you'll see real-time stock levels and can request a quote in under 60 seconds without calling a single distributor.

I don't know the exact model number — can I still find it?

Yes — that's exactly what ChatMRO is built for. Describe the room size, mounting box, and heating need in plain English. The AI matches your description against 30M+ indexed parts and returns the closest Broan-NuTone SKU with datasheet, alternatives, and a quote option. Try it now — no account required.

Don't know the model number? No problem.

Just describe what you need. ChatMRO finds the right Broan NuTone ceiling heater in seconds.

Broan NuTone 157 Radiant Ceiling Heaters — Sourcing Intelligence for Industrial Buyers

The Broan NuTone 157 is among the most widely stocked low-profile fan-forced ceiling heaters for supplemental heating in bathrooms and small rooms across residential and light commercial installations. Broan-NuTone commands significant market presence due to its proven low-profile aluminum housing extending only 2-3/4" from the ceiling, compatibility with standard residential electrical boxes, automatic overheat protection, and UL Listed construction backed by a 1-year manufacturer warranty. Procurement professionals and contractors in India, Southeast Asia, and North America regularly source Broan NuTone 157 ceiling heaters for bathroom supplemental heating, small office comfort heating, and general residential retrofit installations.

ChatMRO simplifies this procurement process by providing AI-powered natural language search across a catalogue of 30 million+ indexed industrial parts. Buyers no longer need to memorize model codes or navigate multi-level filter trees to find the right heater. A simple description of the room size, mounting box, or heating need is sufficient to surface the correct Broan-NuTone product alongside cross-brand alternatives and real-time pricing.