The fastest way to find, compare and buy Dayton electric wall & ceiling unit heaters.
Describe the kW, voltage, or space you need to heat. ChatMRO finds the exact Dayton match, shows alternatives, and gives you a quote — in seconds. No part number needed.
Updated
AI-generated imageAn electric wall & ceiling unit heater is a fan-forced resistance heater in a compact steel housing that mounts either to a wall bracket or suspended from a ceiling, drawing air across electric resistance heating elements and discharging warm air horizontally across the space at a rated CFM and temperature rise. Unlike ducted central heating, unit heaters are self-contained point-source heaters — plug in the power and mount the bracket, and the unit heats the immediate area around its installation point.
Facilities managers, warehouse operators, and maintenance technicians rely on Dayton unit heaters wherever supplemental or standalone electric heat is needed without extending ductwork — garages, workshops, warehouses, loading docks, and mechanical rooms are common applications. Their dual wall/ceiling mounting flexibility, wide kW range spanning from small offices to large warehouse bays, and simple mechanical selector dial controls make them a standard, low-installation-complexity heating solution wherever a gas-fired option isn't practical or an electrical circuit is more readily available than a gas line.
Common configuration: kW outputs from roughly 3.7 kW up to 30 kW, single-phase 208/240V or three-phase 208V/480V, airflow from 210 CFM on small units up to 2,100 CFM on the largest models, air temperature rise from about 37°F to 60°F depending on model, and horizontal air throw from 12 ft up to 50 ft. Standard features include a mechanical selector dial control, automatic fan time delay, built-in thermostat on many models, and steel housing with a powder-coated finish.
Stop second-guessing. Match your use case below — then let ChatMRO's AI surface the exact kW rating, CFM, and alternatives in one natural-language search.
Small rooms, utility closets, or point-source heat where a low-profile unit suffices. 3.7–5 kW models dominate here.
Workshops, garages, and mid-size commercial rooms needing more heating capacity and reach. 7.5–15 kW models dominate here.
Large open industrial spaces needing maximum heating capacity and air throw. 25–30 kW models dominate here.
Dayton (Grainger's private-label industrial brand) offers a broad lineup of electric wall & ceiling unit heaters spanning small office units to large 30 kW industrial models. Here's how to navigate their catalogue without a 40-tab browser session.
ChatMRO indexes the full Dayton unit heater catalogue. Search any product by description, application, or rough spec.
The small-space workhorse. 208/240VAC single-phase, dual kW taps (3.7/5 kW), 270-350 CFM airflow, 60°F max temp rise. Steel housing, UL Listed/CUL, thermostat and automatic fan time delay included, 1 yr parts / 5 yr elements warranty.
Search 3UG73 Series →208V or 480V 3-phase, 650-910 CFM airflow, 18-35 ft horizontal air throw. Mechanical selector dial control, 24V AC contactor coil, powder coated steel housing suited to workshops and mid-size commercial spaces.
Search 804T/2YU Series →480VAC 3-phase, 1,800-2,100 CFM airflow, up to 50 ft horizontal air throw, 38-53°F temp rise. Fan forced heating for warehouses, factories, and large stock rooms. Beige powder coated steel housing.
Search 3END3/804T Series →Use this table as a decision shortcut. Ask ChatMRO for the exact part once you know which row fits your spec.
| Model | kW Output | Voltage/Phase | Best For | Airflow (CFM) | Air Throw | ChatMRO Verdict |
|---|---|---|---|---|---|---|
| Dayton 3UG73 | 3.7/5 kW | 208/240V, 1-phase | Small offices, utility rooms | 270-350 | 12 ft | Best entry point for small compact spaces |
| Dayton 2YU62 | 3.7/5 kW | 208/240V, 1 or 3-phase | Small commercial rooms with phase flexibility | 350 | 12 ft | Good when either single or 3-phase service may be available |
| Dayton 804T20 | 7.5 kW | 208V, 3-phase | Workshops, garages, mid-size rooms | 650 | 18 ft | Most common choice for workshop and garage heating |
| Dayton 2YU70 | 10 kW | 480V, 3-phase | Larger workshops, mechanical rooms | 650 | 18 ft | Go-to when 480V 3-phase service is available and higher kW is needed |
| Dayton 2YU73 | 15 kW | 480V, 3-phase | Mid-size warehouses, industrial rooms | 910 | 35 ft | Use for stronger heat delivery over a larger area |
| Dayton 3END3/804T08 (25-30 kW) | 25-30 kW | 480V, 3-phase | Large warehouses, factories, stock rooms | 1,800-2,100 | 50 ft | Best for the largest industrial bays needing maximum heat and throw |
Not sure which row is yours? Describe your application to ChatMRO and get an instant AI-matched recommendation with datasheets.
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 unit heater from 30M+ indexed parts.
In plain language — by kW, voltage, or space size. No MPN required.
Natural language processing maps your description to the closest-fit products across brands and specs.
Cross-brand equivalents, lower-cost substitutes, and in-stock alternatives shown side-by-side.
Add to cart or request RFQ directly from the results. No phone calls. No email chains.
Whether you're a facilities manager heating a new warehouse bay, or a shop owner replacing a failed unit heater — use this framework before you procure.
Estimate square footage, ceiling height, insulation quality, and target temperature rise to size kW output — undersizing leaves cold spots, while oversizing wastes energy and increases equipment cost unnecessarily.
Check whether your site has single-phase 208/240V or three-phase 208V/480V service available, since larger kW units (15 kW+) commonly require 3-phase power and higher amperage circuits.
Match the unit's rated air throw (12 ft to 50 ft depending on model) to the length of the space you need to heat, to ensure warm air actually reaches the far end of the room.
Most models support both mounting locations — choose based on available wall space, ceiling height, and whether floor-level clearance needs to be preserved for equipment or foot traffic.
Standard units use a mechanical selector dial; confirm whether a built-in thermostat is included or whether you'll need to pair the unit with a separate line voltage wall thermostat for automatic temperature control.
Many models are available in both single-phase and 3-phase versions at different kW levels. Search by function on ChatMRO — the AI surfaces exact matches AND available substitutes compatible with your electrical service.
A unit with sufficient kW but insufficient air throw can leave the far end of a long room under-heated. Check the rated horizontal air throw against your actual room dimensions.
Larger kW units draw substantial current — confirm your electrical panel has an appropriately sized circuit breaker and wiring gauge for the unit's full load amps before installation.
Describing your application to ChatMRO takes 30 seconds. The AI reads the full Dayton unit heater catalogue so you don't have to.
Just describe what you need. ChatMRO finds the right Dayton electric wall & ceiling unit heater in seconds.
Dayton electric wall & ceiling unit heaters are among the most widely specified supplemental heating solutions for garages, workshops, warehouses, and industrial facilities lacking central ducted heat. The Dayton brand commands significant market presence due to its broad kW range from small office units to large 30 kW industrial models, dual wall/ceiling mounting flexibility, and proven fan-forced heating performance across single-phase and three-phase electrical service. Procurement professionals and facilities engineers in India, Southeast Asia, and North America regularly source Dayton unit heaters for supplemental space heating, warehouse climate control, and general facility heating replacement.
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 kW, voltage, or space size is sufficient to surface the correct Dayton product alongside cross-brand alternatives and real-time pricing.
