Mr. Heater Forced Air Propane Heater MH170QFAVT - Quiet 170,000 BTU

In this review of the Mr. Heater MH170QFAVT (renewed), the bottom line is simple: this is a powerful, portable forced air propane heater that suits large, semi-enclosed spaces where robust heat and quieter operation matter. The unit delivers a full 170,000 BTUs in a lightweight package and includes a thermostat and long hose, making it easy to move and control. For garage projects, jobsite warm-ups, or outdoor event heating this heater stands out for its combination of high heat output and Quiet Burner Technology, which cuts noise roughly in half compared with standard units.

Key Features

• 170,000 BTU output: Provides intense heat that can warm large garages, workshops, or covered patios quickly and consistently.
• Quiet Burner Technology: Reduces operational noise about 50% compared to a standard propane forced air heater, making it less intrusive during work or gatherings.
• Included thermostat: Allows the user to maintain a target temperature without constant adjustments, improving comfort and fuel efficiency.
• 20 ft hose and regulator: Offers reach and flexibility to position the heater safely away from activity areas and connect to a distant tank.
• High-temperature limit switch: Adds protection by shutting the unit down if internal temperatures exceed safe levels, increasing reliability.
• Heavy-duty handle: Makes the lightweight, portable unit easier to move across job sites or storage areas.

Who It's For

The MH170QFAVT renewed heater is best for users who need a compact but powerful solution for large, partially enclosed spaces: contractors who want to warm a jobsite, hobbyists working in detached garages, and event organizers heating covered outdoor areas. The included thermostat and long hose make it practical for setups where access to a tank or temperature control matters.

Shoppers who require ultra-quiet indoor heating for living spaces or who need integrated electric power features should look elsewhere; this unit is optimized for workshops, garages, and outdoor or well-ventilated areas where forced air propane heat and portability are priorities.

Pros & Cons

Pros

• High 170,000 BTU output delivers fast, effective heat for large spaces.
• Quiet Burner Technology makes it noticeably less noisy than comparable forced air heaters.
• Thermostat and 20 ft hose with regulator increase usability and flexible placement.
• Safety features like the high-temperature limit switch add dependable protection.

Cons

• Even with quieter operation, it remains a forced air propane unit and is best used in ventilated areas rather than living rooms.
• As a renewed product, cosmetic wear may be present though core features are intact.

Specifications

Our Verdict

The renewed Mr. Heater MH170QFAVT is a strong value for anyone needing reliable, portable heat for large, ventilated spaces. Its combination of 170,000 BTU output, quieter operation, and convenient accessories like the thermostat and 20 ft hose make it a practical choice for workshops, garages, and outdoor events where powerful heat and easier placement matter.

Frequently Asked Questions

Is this unit suitable for indoor use?
It is intended for garages, workshops, and well-ventilated or semi-enclosed areas; it is not designed for tight, occupied living spaces without proper ventilation.

Does the heater come with a regulator and hose?
Yes, the MH170QFAVT includes a 20 ft hose and regulator so it can be positioned away from the propane tank.

How loud is Quiet Burner Technology?
Quiet Burner Technology makes the heater about 50% quieter than a standard forced air propane heater, reducing operational noise while maintaining output.