Products - Unit Heater
Product Specifications



Volcano Unit Heater - EC Motors
Siwa’s EC Motor unit heaters are the most efficient hot water unit heaters in North America. They combined innovative, technical solutions with a modern and functional design.

Volcano Unit Heater - EC Motors
Features
- ECM (Electronically Commutated Motors)
- Horizontal or Vertical throw
- 115 – 240V/1/60Hz
- NPT connections
- Same end S/R connections as standard (Opposite end available)
- 6 sizes available
- Accessories available
Performance
- 950 -> 3800 CFM
- Horizontal throw: 92 ft
- Vertical range: 49 ft
Dowloads
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Common Applications
Volcano Unit Heater - EC Motors
Siwa’s EC Motor unit heaters are the most efficient hot water unit heaters in North America. They combined innovative, technical solutions with a modern and functional design.
Given it’s high mechanical strength of it’s ABS casing, designed using 1, 2 or 3 row hydronic coils and aerodynamically designed fan blades that maximize air flow effiiciency, Siwa’s unit haters are perfect for low water temperature applications and are guaranteed to provide energy savings vs standard unit heaters. To gain, full functionality of our unit heaters, it is reccomended to be controlled using Siwa’s HMI controller for unit heaters or controlled through the BMS system.
When installed and designed correctly, compared to standard unit heaters in the market, Siwa’s unit heaters save up to 40% of operating cost.

Batavia Place - Condo
SIWA References
This condo project features Polar air‘s low-profile, ducted 2-pipe fan coils (PDWAs), selected for their efficiency and compact design to meet the building’s heating and cooling needs.
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