Lochinvar 100143242 EnergyRite ASME High Altitude Pool Heater 399000 BTU
Lochinvar 100143242 EnergyRite ASME High Altitude Pool Heater 399000 BTU
High-altitude 399K BTU natural gas pool heater built for reliable performance in residential environments up to 8,000 ft.
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The Lochinvar EnergyRite 100143242 is a high-altitude natural gas pool heater built to deliver fast, consistent heating up to elevations of 8,000 feet.
Engineered with ASME compliance, this heater offers dependable residential performance with efficient 399,000 BTU output.
Its compact design and straightforward installation make it a strong option for homeowners needing serious power in high-altitude environments.
Reliable flow rate support down to 40 gallons per minute ensures adaptability across a wide range of pool system configurations.
Built to Lochinvar’s high standards, the EnergyRite 100143242 ensures long-term value and high-performance operation season after season.

⭐⭐⭐⭐⭐
Users say this heater delivers reliable heating performance even at high altitudes where other models fall short.
The compact footprint makes it easy to fit into small equipment areas without sacrificing output.
Customers appreciate its simple, efficient design that reduces installation and operating complexity.
Many reviewers praise the unit’s ability to maintain steady temperatures in mountain climates.
Homeowners highlight its consistent value and peace of mind thanks to ASME-certified construction.

- High Altitude Capability: Operates effectively up to 8,000 feet elevation.
- Natural Gas Heating: Delivers quick, cost-efficient pool heating.
- ASME Compliant: Built for quality and safety in residential applications.
- Compact Design: Ideal for limited space and easier installation.
- 399,000 BTU Output: Fast, consistent heating power.
- Durable Build: Constructed for lasting performance with minimal maintenance.
- Flexible Flow Rate: Operates at flow rates as low as 40 GPM.

- Brand: Lochinvar
- Application: Pool
- Shipping Dimensions: 28 x 50 x 35 inches
- BTU Input: 399,000 British thermal units
- Commercial, Residential, or Professional: Residential
- Each Product Weight: 288 pounds
- Elevation Max: 8,000 feet
- Flow Rate Min: 40 gallons per minute
- Fuel Type: Natural Gas
- Gas Connection: 0.75 inch
- Gas Connection FIT: NPT
- Minimum Sell Quantity: 1


Q: Is this heater designed specifically for high-altitude regions?
Yes, the 100143242 model is optimized for use at elevations up to 8,000 feet, ensuring consistent performance where other heaters may struggle.
Q: Can this unit be installed in smaller equipment pads?
Yes, its compact size (28 x 50 x 35 inches) allows for easier placement in tight or restricted areas.
Q: Does this heater require any special maintenance due to high-altitude operation?
Routine maintenance is similar to standard units, but regular inspections are recommended to ensure optimal air-fuel mixture in thinner air environments.

Pool heaters and heat pumps are not returnable once installed or connected. Double-check fuel type, voltage, and sizing before installation.

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