Blue flame vent-free heaters deliver efficient convection heat for medium to large spaces. This guide compares five 30,000 BTU blue flame models suited for homes, garages, sunrooms, and additions, covering fuel type, controls, safety features, and installation options to help select the right unit for your space.
| Product | Fuel Type | Coverage | Notable Feature |
|---|---|---|---|
| ProCom ML300TBA-B | Liquid Propane | Up To 1400 Sq. Ft. | Thermostat Control, Wall Or Floor Mount |
| ProCom MN300HBA-B | Natural Gas | Up To 1400 Sq. Ft. | No Electricity Required, Manual Control |
| Dyna‑Glo 30,000 BTU | Liquid Propane | Up To 1000 Sq. Ft. | Blue Flame Convection, Wall Mount |
| Mr. Heater MHVFB30LPT (Bundle) | Propane | Up To 1000 Sq. Ft. | CSA Certified, ODS Safety |
| Mr. Heater MHVFBF30NGT | Natural Gas | Up To 1000 Sq. Ft. | Precise Thermostat, Electric Ignition |
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ProCom ML300TBA-B Ventless Propane Heater
This ProCom model is a 30,000 BTU liquid propane ventless blue flame heater rated to heat up to 1,400 sq. ft. The unit includes a thermostat with High/Medium/Low settings for adjustable heat delivery and can be mounted on a wall or used with included base feet for floor placement.
- Technology: Blue flame convection warms air similar to central heating, producing consistent ambient heat.
- Controls: Built-in thermostat with three heat levels supports simple temperature management.
- Installation: Includes wall mounting hardware and base feet for flexible placement.
Use cases: suitable for larger rooms, open-plan areas, and spaces where a propane connection is preferred. Consider ventilation rules and local codes for vent-free appliances before installation.
ProCom MN300HBA-B Natural Gas Heater
This ProCom natural gas variant delivers 30,000 BTU and is rated for up to 1,400 sq. ft. It operates on natural gas with no electricity required, using a push-button piezo ignition and manual control with three heat settings.
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- Fuel & Operation: Natural gas only; functions without electrical power, useful during outages.
- Controls: Manual low/medium/high settings for straightforward operation.
- Safety: Includes an Oxygen Depletion Sensor (ODS) that shuts the unit off if oxygen levels drop.
Use cases: interior spaces with natural gas supply and where non-electric operation or simple manual controls are preferred.
Dyna‑Glo 30,000 BTU Propane Wall Heater
The Dyna‑Glo vent-free wall heater uses blue flame technology to convect heat like a central heating system. It offers variable heat output from 24,000 to 30,000 BTU and is designed for wall mounting to save floor space.
- Fuel: Liquid propane ready; conversion not permitted.
- Heat Delivery: Convection-based blue flame design distributes warm air evenly.
- Coverage: Listed for up to about 1,000 sq. ft.
Use cases: wall-mounted heating in rooms, cabins, or additions where propane supply is available and a convection-style heater is desired.
Mr. Heater 30,000 BTU Vent Free Propane Heater (Bundle)
This Mr. Heater bundle includes a 30,000 BTU vent-free blue flame propane unit with features geared toward safety and certification. The heater includes an automatic low oxygen shutoff system (ODS) and CSA certification.
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- Safety: ODS automatic shutoff for low-oxygen conditions and CSA certification for compliance.
- Controls & Mounting: Thermostat for automatic temp control and included legs or wall mounting hardware for flexible installation.
- Heat Type: Blue flame convection provides even room heating.
Use cases: indoor spaces requiring certified safety features and flexible mounting. The bundle option often includes accessories for faster setup.
Mr. Heater MHVFBF30NGT Natural Gas Wall Heater
This Mr. Heater natural gas model provides 30,000 BTU for spaces up to about 1,000 sq. ft. It features a precise thermostat, electric ignition powered by a supplied battery, and is optimized for fuel efficiency.
- Fuel Efficiency: Efficient blue flame burner with low gas consumption rate.
- Controls: Precise thermostat control for stable indoor temperatures; battery-powered ignition included.
- Altitude & Use: Designed to perform at elevations up to ~4,500 ft where applicable.
Use cases: rooms with natural gas hookup seeking precise temperature control and efficient fuel use.
Buying Guide: How To Choose A 30,000 BTU Blue Flame Heater
Fuel Type: Propane vs Natural Gas
Propane models offer portability and are suitable where natural gas service is unavailable, but require regular tank refills and proper ventilation planning. Natural gas units connect to an existing supply for continuous fuel without tank changes; installation may require a gas line and professional hookup.
Room Size And Heat Output
Match the heater’s BTU rating to room size and insulation. Although these units are rated 30,000 BTU, coverage varies by model and space characteristics. Models claiming up to 1,400 sq. ft. assume open areas and good heat retention; smaller, poorly insulated rooms will need less output.
Controls And Convenience
Choose between manual and thermostat control. Thermostats provide automatic temperature regulation and efficiency; manual controls can be simpler and may allow operation without electricity on some natural gas models.
Ignition Type
Piezo or battery-powered electric ignition simplifies startup. Some natural gas manual models use push-button piezo igniters and no electricity, which can be advantageous during power outages.
Safety Features
Essential safety features include an Oxygen Depletion Sensor (ODS), automatic shutoff, and applicable safety certifications such as CSA. Verify that the unit has built-in ODS and conforms to local safety codes.
Installation And Mounting
Decide between wall-mounted and floor models. Many units include wall-mount brackets and base feet for flexible placement. Professional installation may be required for natural gas hookups or to comply with local codes.
Vent‑Free Considerations And Indoor Air Quality
Vent‑free blue flame heaters are efficient but release combustion byproducts into the room; ensure proper ventilation, monitor CO and moisture levels, and follow manufacturer guidance for room size and clearance.
Altitude And Performance
Some models note performance up to a specified altitude (e.g., 4,500 ft). If you live at higher elevations, confirm the unit’s operating elevation range to ensure reliable combustion and heat output.
Energy Efficiency And Operating Cost
Blue flame convective heaters convert fuel efficiently to warm air. Compare BTU per hour figures and fuel consumption rates when available. Natural gas often runs cheaper if a supply is already connected, while propane offers flexibility.
Maintenance And Durability
Inspect burner ports, pilot assemblies, and ODS sensors periodically. Follow the manufacturer’s maintenance schedule and have gas connections checked during installation or service visits.
Comparison Perspectives
- Performance: Models with thermostats offer steadier room temps than manual three‑setting units.
- Reliability: Non-electric piezo ignitions allow operation during power loss, while electric ignition offers easier starts.
- Safety: CSA certification and ODS are critical differentiators for indoor safety compliance.
- Installation Flexibility: Units with included mounting hardware and base feet provide more placement options.
When choosing, weigh fuel availability, need for thermostat control, safety certifications, and installation constraints. Consult local building codes and consider professional installation to ensure safe, efficient operation.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.