Axiom
Axiom MF200 PressurePal Hydronic System Mini Feeder
Best compact solution for maintaining pressure in residential hydronic heating systems.
The Axiom MF200 PressurePal is a compact 6.0-gallon mini feeder designed to maintain pressure in closed-loop heating systems up to 25 psi. It simplifies installation by eliminating the need for a separate potable water supply, making it ideal for radiant heating, snow melting, and coil systems. This unit easily connects to a standard 115VAC outlet and is compatible with water and up to 50% glycol anti-freeze mixes. The MF200 ensures straightforward service and enhances safety by limiting potential flood damage from system leaks.
$585.95
Owner Satisfaction
4.6
/ 5
Category Rank
89
/ 675
#89 in Furnace & Boiler Accessories
Price vs Category Average
+193%
Above average
Tank Volume
6.022.7
/ gallons ( liters)
Who it's for
- Homeowners seeking hands-off boiler pressure management
- Installers working in tight utility spaces
- Property owners looking to extend equipment lifespan
Who should skip it
- Budget-conscious buyers prioritizing lower upfront costs
- Users who prefer manual leak detection alerts
- Owners wanting a strictly maintenance-free system
Performance breakdown
Installation Simplicity
Standard plug-and-play electrical connection makes setup remarkably straightforward for installers.
System Compatibility
Handles both water and glycol mixes with impressive, versatile fluid management.
Leak Protection
Integrated reservoir design effectively mitigates the risk of catastrophic flood damage.
Pressure Maintenance
Reliably maintains consistent pressure levels within the specified 10-25 psi range.
Build Durability
Lightweight plastic construction is practical but lacks the ruggedness of metal.
Maintenance Ease
Accessible design allows for quick air purging and routine system servicing.
Key Specs
Tank Volume
6.0 gallons (22.7 liters)
Pressure Switch Range
10-25 psig (adjustable)
System Connection
1/2" FPT
Electrical Requirement
115V, 60Hz, US standard plug
Empty Weight
7.0 lbs; Full Weight: 60.0 lbs
Dimensions (L x W x H)
11.75" x 11.75" x 16"
Maximum Glycol Concentration
50%
Pump Performance
Up to 0.7 GPM @ free flow
Features
- Maintains pressure in hydronic heating systems
- Eliminates need for potable water supply
- Compatible with water and glycol mixes
- Plugs into standard 115VAC outlet
- Prevents major flooding from leaks
- Enables early leak detection
- Pump runs safely if tank is dry
- Facilitates easy air purging
What customers say
The Axiom MF200 earns high praise primarily for its superior convenience and reliability in managing hydronic systems. Installers value its compact design, which greatly eases installation in tight utility areas. The core benefit is its automatic, precise pressure maintenance, effectively turning system upkeep into a passive function. Users consider the MF200 a robust, set it and forget it solution that minimizes downtime and prevents pressure related problems. Although the initial cost is higher than basic valves, the long term value derived from reduced maintenance and enhanced system longevity strongly justifies the investment for most experienced users. Overall satisfaction remains very high.
Know before you buy
No, it does not. The unit features a 6.0-gallon reservoir that eliminates the need for a direct potable water connection, making it ideal for systems where a dedicated water line is not easily accessible.
Yes, the MF200 is fully compatible with water and glycol anti-freeze mixtures up to a 50% concentration.
By using a self-contained reservoir rather than a continuous water feed, the unit limits the total volume of fluid available to leak. If a major pipe burst occurs, the system only loses the contents of the tank, significantly reducing potential water damage.
Yes, the pressure switch is adjustable within a range of 10 to 25 psig, allowing you to calibrate the unit to the specific requirements of your hydronic system.
The MF200 is designed for convenience and plugs directly into a standard 115VAC, 60Hz household outlet.
The pump is designed to run safely even if the tank is empty, preventing damage to the unit during dry-run conditions.
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