TLDR Review: "Mr Heater Blue Flame Heater"
Pros
- •Provides effective supplemental heating with even heat distribution, warming small to medium spaces efficiently
- •Cleaurning blue flame design enhances heating efficiency and aesthetics
- •Integrated thermostat maintains a consistent and comfortable temperature (around 68°F at low setting in a 300 sq ft area)
- •Can be configured for either natural gas or propane, offering fuel flexibility during setup
- •Durable construction with reports of units lasting several years under heavy use
- •Easy to install, with options to add a blower fan for better heat circulation (though with some tradffs)
- •Attractive design that fits well visually in garages, mobile homes, or small houses
- •Offers excellent value for the price, combining functionality, reliability, and build quality
- •Suitable for basic heating needs, particularly in cold spaces like garages or chilly mornings
Cons
- •Despite the “dual fuel” name, it’s not truly dual fuel on demand — it must be set up for either propane or natural gas, and switching requires professional modification
- •Requires separate purchase of the propane regulator, hose, and adapter which adds extra cost and complexity
- •Optional blower fan disables wall mounting and needs a power source, limiting installation flexibility
- •May not be powerful enough for larger or very cold spaces, making it best suited for smaller rooms
- •Limited included hardware or unclear packaging quality noted by some users, though this doesn’t affect performance
- •Some users desire minor improvements in user experience, but these don’t detract significantly from overall satisfaction
Bottom Line
The Mr Heater 20,000 Btu Vent Free Blue Flame Dual Fuel Heater is a solid choice if you want an efficient, visually appealing heater for smaller spaces like garages, mobile homes, or rooms up to about 300 sq ft. Just be aware it’s not truly a dual fuel heater on the fly — you pick one fuel type at installation and stick with it. If you want a hassle-free propane setup, plan to buy the regulator and hose separately. For those needing more versatile or powerful heating options, looking into other models might be worthwhile, but if you want reliable, clean heat with easy thermostat control and durable build, this unit delivers well.
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