Modine’s Hot Dawg H₂O hydronic unit heater has no moving external parts, making it a perfect fit for a garage or warehouse. The unit’s design and low profile allow it to be rotated for either horizontal or vertical air discharge. The HHD30 model operates between 23,700 and 39,200 BTU/hour, and the high-capacity HHD45 operates between 23,900 and 56,800 BTU/hour at 180 degrees of entering water temperature.

The unit’s design and low profile allow it to be rotated for either horizontal or vertical air discharge.