Modine HD100AS0121 100,000 BTU Propane Unit Heater
$1,507.00 on Amazon.com (as of October 17, 2026, 7:02 AM EST) View details ↗
The Modine HD100AS0121 delivers reliable, high‑output heating for workshops, garages, and large residential spaces. Powered by a single‑stage liquid‑propane burner, this unit provides 100,000 BTU of heat with an 80% AFUE rating, ensuring efficient energy use while maintaining a quiet operation. Its power‑vented design and aluminized‑steel heat exchanger make installation flexible and the unit durable for years of service.
Field wiring connections and standard electrical knockouts allow the heater to be mounted in virtually any location, and the neutral, natural‑colored finish blends seamlessly with most environments. Operating on 115 V, 60 Hz, single‑phase power, the HD100AS0121 is engineered for straightforward hookup and dependable performance.
| Heating Capacity | 100,000 BTU |
|---|---|
| Fuel Type | Liquid Propane |
| AFUE | 80% |
| Power Supply | 115 V / 60 Hz / 1‑phase |
| Vent Type | Power‑vented |
| Heat Exchanger Material | Aluminized Steel |
