Hot Dawg® H₂O Low Profile Hydronic Unit Heater

• Versatile Installation: Low-profile design allows for flexible mounting options—parallel, perpendicular, or recessed between joists—allows for horizontal or vertical air delivery
• Twin Centrifugal Blowers and Motor: Twin centrifugal blower wheels and a dual shaft blower motor (115V/60Hz/1ph)
• Three Blower Speeds: Low (280 CFM) / Medium(425 CFM) / High Speed (710 CFM).
• Noise Reduction: Blowers are housed inside the cabinet, ensuring all moving parts are enclosed for safety and reduced operating noise.
• High-Performance Coil: Internal coil withstands temperatures up to 200°F and pressures up to 150 psi, making it compatible with a variety of hydronic systems.
• Easy Installation: Side-access piping enables reversible connections (left or right) for hassle-free installation.
• Durable Construction: 20-gauge steel cabinet is pre-treated to prevent rust and corrosion, finished with a durable, electrostatically applied, baked-on polyester powder-coat paint.
• Mounting Hardware: Includes two mounting brackets with vibration isolators to reduce noise and vibration
• Enhanced Safety Features: No moving parts are exposed outside the unit, and side air inlet openings are designed to be finger-proof, ensuring a safe and quiet operation.
• Versatile Use: Ideal for residential, garage, or light commercial settings, leveraging existing hot-water systems for efficiency.
• ETL Certified: ETL as design certified for use in both the US and Canada to the UL 60335-2-40 and CSA C22.2 Standards for Heating and Cooling Equipment for safe operation, construction, and performance.
• Proudly Designed, Engineered, and Assembled in the USA: Commitment to quality and craftsmanship in every unit.

• BTU output from 8,900 up to 66,300, depending upon input conditions.
• Allowable entering water temperatures range between 100°F and 200°F, which is ideal for Residential installations.

See product catalog for full details: 1-115 HHD Hot Dawg® H₂O Hydronic Unit Heater Catalog

The Hot Dawg® H₂O unit heater is suited for spaces where quiet, efficient heat is required and a steam/hot water system is already available or preferred.

Common applications include:

• Residential garages, basements, or hobby workshops
• Commercial or light industrial service bays and workrooms
• Institutional mechanical rooms where hot-water heating is already present
• Retrofit installations leveraging existing boiler, ground-sourc,e or indirect hot-water loops