Modine AMP057AA1401 Amp Dawg Electric Unit Heater - 5.7kW, 208-240V, Single Phase

5.7kW Electric Garage Heater | 19,437 BTU, 425 CFM, 20-Ft Throw

The Modine AMP057AA1401 Amp Dawg electric unit heater delivers 4.3kW on low and 5.7kW on high (14,578 to 19,437 BTU), runs on 208-240V single-phase power, and draws 21.1 to 24 amps. At 425 CFM with a 20-foot heat throw, this 5.7kW electric heater covers garages, workshops, and small commercial spaces up to approximately 500 sq ft.

Unlike gas-fired unit heaters, the Amp Dawg requires no venting, no gas line, and produces zero emissions. It plugs into a dedicated 240V circuit and mounts to the ceiling with the included bracket. Wall mounting is available with an optional bracket. The exterior casing stays cool during operation, even in failure modes.

Quick Specs

• kW Rating: 4.3kW (low) / 5.7kW (high)

• BTU Output: 14,578 (low) / 19,437 (high)

• Voltage: 208-240V, 1-Phase

• Amperage: 21.1A (208V) / 24A (240V)

• Airflow: 425 CFM

• Temperature Rise: 42°F

• Heat Throw: 20 ft

• Dimensions (W x H x D): 27 x 11.4 x 15 in

• Weight: 48 lbs

Key Features

• Dual heat settings with commercial-grade elements: Switch between 4.3kW and 5.7kW depending on the space and conditions. Durable heating elements are rated for long-term commercial use.

• Zero-emission, ventless operation: No exhaust fumes, no gas connection, no vent pipe. Ideal for enclosed spaces where air quality matters, such as basements, workshops, and retail backrooms.

• Cool-touch exterior casing: The outer casing remains cool during operation and is designed to stay cool even in failure modes. Safe for low-clearance ceiling mounting with just 1 inch of top clearance required.

• Quiet operation at every speed: Enclosed fan and motor design eliminates vibration. One of the quietest electric unit heaters in its class, suitable for occupied spaces like offices and retail areas.

• Built-in thermostat controls with 24V circuit: Includes thermostat controls and a 24V low-voltage circuit for connecting an external wall thermostat. The operating indicator light and the safety indicator light are standard.

• Ceiling bracket included; wall mount optional: Ships with a ceiling mount bracket for permanent installation. Wall Mounting Bracket (Part #33400) is sold separately.

Modine AMP057AA1401 Electric Unit Heater Specifications

Installation Clearances

Applications

The Modine Amp Dawg AMP057A electric unit heater is designed for spaces where gas service is unavailable or where zero-emission heating is required. Common installations include residential garages, hobby workshops, basements, greenhouses, and small commercial areas such as retail backrooms, service bays, maintenance rooms, and storage buildings.

Its compact 27 x 11.4 x 15-inch footprint and low-profile design make it practical for low-ceiling garages and tight overhead spaces. At 48 lbs, it is significantly lighter than gas-fired alternatives, simplifying installation.

Amp Dawg vs. Hot Dawg: Electric vs. Gas

Choose the Amp Dawg when you need a simpler installation with no gas line or exhaust venting. Choose the Hot Dawg when you need higher BTU output and have existing gas service.

Available Accessories

• Wall Mounting Bracket (Part #33400): For wall-mounted installations where ceiling mounting is not feasible.

• Summer/Winter Switch: Allows fan-only operation for air circulation during warm months.

• Thermostat: Compatible external 24V low-voltage thermostats for precise temperature control.

• Thermostat Guard: Protective cover to prevent tampering in commercial or shared spaces.

Warranty

The Modine AMP057AA1401 is backed by a 10-year heat exchanger warranty and a 2-year parts warranty. Full warranty terms are available in Modine document 75-941 (Warranty Overview) and 75-935 (Heating and Indoor Air Quality Product Warranty).

Buy the Modine AMP057AA1401 Online from Cleanflow

Cleanflow Utility Supply Company is an authorized Modine distributor serving customers across Canada and the United States. All orders ship free, with a 30-day return policy. Whether you need a single electric unit heater for a garage or multiple units for a commercial facility, Cleanflow stocks the Amp Dawg lineup and ships direct to your door.

Looking for a different capacity or fuel type? Browse our complete selection of heaters, including gas-fired models from the Hot Dawg and PTP series.

Frequently Asked Questions

What size space can the Modine AMP057A heat?

At 19,437 BTU on high, the AMP057A can heat approximately 400 to 500 sq ft in a well-insulated space. Use a BTU calculator to determine the exact requirement based on your ceiling height, insulation, climate zone, and desired temperature rise.

Does this electric unit heater require venting?

No. The Amp Dawg is 100% electric and produces no combustion exhaust. It requires no vent pipe, no gas line, and generates zero emissions at the point of use.

What circuit does the AMP057AA1401 need?

A dedicated 208-240V, single-phase circuit. The unit draws up to 24 amps at 240V, so a 30-amp breaker with appropriate wiring is typically required. Consult a licensed electrician for your specific installation.

Can I mount this on a wall instead of the ceiling?

Yes. The unit ships with a ceiling mount bracket. For wall mounting, purchase the optional Wall Mounting Bracket (Part #33400) separately.

How does the Amp Dawg compare to the Hot Dawg?

The Amp Dawg is the electric alternative to the gas-fired Hot Dawg. It delivers comparable air throw (20 ft) with no venting, no gas connection, and zero emissions. The trade-off is lower BTU output. The AMP057A tops out at 19,437 BTU versus the HD30's 24,000 BTU output. For spaces without gas service, the Amp Dawg is the practical choice.

Is this heater quiet enough for an office or retail space?

Yes. The enclosed fan and motor assembly eliminates vibration at all speeds. The Amp Dawg is one of the quietest electric unit heaters in its class.